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| <div class="subTitle">org.apache.kafka.streams.kstream</div> |
| <h2 title="Interface KStream" class="title">Interface KStream<K,V></h2> |
| </div> |
| <div class="contentContainer"> |
| <div class="description"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>K</code> - Type of keys</dd><dd><code>V</code> - Type of values</dd></dl> |
| <hr> |
| <br> |
| <pre>@InterfaceStability.Unstable |
| public interface <span class="strong">KStream<K,V></span></pre> |
| <div class="block"><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> is an abstraction of a <i>record stream</i> of key-value pairs. |
| <p> |
| A <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> is either defined from one or multiple Kafka topics that are consumed message by message or |
| the result of a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> transformation. A <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> can also be converted into a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a>. |
| <p> |
| A <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> can be transformed record by record, joined with another <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> or <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>, or |
| can be aggregated into a <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>.</div> |
| <dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a></dd></dl> |
| </li> |
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| </a> |
| <h3>Method Summary</h3> |
| <table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span>Methods</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><T> <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,T></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#aggregateByKey(org.apache.kafka.streams.kstream.Initializer,%20org.apache.kafka.streams.kstream.Aggregator,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde,%20java.lang.String)">aggregateByKey</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Initializer.html" title="interface in org.apache.kafka.streams.kstream">Initializer</a><T> initializer, |
| <a href="../../../../../org/apache/kafka/streams/kstream/Aggregator.html" title="interface in org.apache.kafka.streams.kstream">Aggregator</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,T> aggregator, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><T> aggValueSerde, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</code> |
| <div class="block">Aggregate values of this stream by key into a new instance of ever-updating <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><T> <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,T></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#aggregateByKey(org.apache.kafka.streams.kstream.Initializer,%20org.apache.kafka.streams.kstream.Aggregator,%20java.lang.String)">aggregateByKey</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Initializer.html" title="interface in org.apache.kafka.streams.kstream">Initializer</a><T> initializer, |
| <a href="../../../../../org/apache/kafka/streams/kstream/Aggregator.html" title="interface in org.apache.kafka.streams.kstream">Aggregator</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,T> aggregator, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</code> |
| <div class="block">Aggregate values of this stream by key into a new instance of ever-updating <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> |
| with default serializers and deserializers.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><T,W extends <a href="../../../../../org/apache/kafka/streams/kstream/Window.html" title="class in org.apache.kafka.streams.kstream">Window</a>> <br><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/Windowed.html" title="class in org.apache.kafka.streams.kstream">Windowed</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>>,T></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#aggregateByKey(org.apache.kafka.streams.kstream.Initializer,%20org.apache.kafka.streams.kstream.Aggregator,%20org.apache.kafka.streams.kstream.Windows)">aggregateByKey</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Initializer.html" title="interface in org.apache.kafka.streams.kstream">Initializer</a><T> initializer, |
| <a href="../../../../../org/apache/kafka/streams/kstream/Aggregator.html" title="interface in org.apache.kafka.streams.kstream">Aggregator</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,T> aggregator, |
| <a href="../../../../../org/apache/kafka/streams/kstream/Windows.html" title="class in org.apache.kafka.streams.kstream">Windows</a><W> windows)</code> |
| <div class="block">Aggregate values of this stream by key on a window basis into a new instance of windowed <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> |
| with default serializers and deserializers.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><T,W extends <a href="../../../../../org/apache/kafka/streams/kstream/Window.html" title="class in org.apache.kafka.streams.kstream">Window</a>> <br><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/Windowed.html" title="class in org.apache.kafka.streams.kstream">Windowed</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>>,T></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#aggregateByKey(org.apache.kafka.streams.kstream.Initializer,%20org.apache.kafka.streams.kstream.Aggregator,%20org.apache.kafka.streams.kstream.Windows,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde)">aggregateByKey</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Initializer.html" title="interface in org.apache.kafka.streams.kstream">Initializer</a><T> initializer, |
| <a href="../../../../../org/apache/kafka/streams/kstream/Aggregator.html" title="interface in org.apache.kafka.streams.kstream">Aggregator</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,T> aggregator, |
| <a href="../../../../../org/apache/kafka/streams/kstream/Windows.html" title="class in org.apache.kafka.streams.kstream">Windows</a><W> windows, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><T> aggValueSerde)</code> |
| <div class="block">Aggregate values of this stream by key on a window basis into a new instance of windowed <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>>[]</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#branch(org.apache.kafka.streams.kstream.Predicate...)">branch</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Predicate.html" title="interface in org.apache.kafka.streams.kstream">Predicate</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>>... predicates)</code> |
| <div class="block">Creates an array of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> from this stream by branching the elements in the original stream based on the supplied predicates.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#countByKey(org.apache.kafka.common.serialization.Serde,%20java.lang.String)">countByKey</a></strong>(<a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</code> |
| <div class="block">Count number of records of this stream by key into a new instance of ever-updating <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#countByKey(java.lang.String)">countByKey</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</code> |
| <div class="block">Count number of records of this stream by key into a new instance of ever-updating <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> |
| with default serializers and deserializers.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><W extends <a href="../../../../../org/apache/kafka/streams/kstream/Window.html" title="class in org.apache.kafka.streams.kstream">Window</a>> <br><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/Windowed.html" title="class in org.apache.kafka.streams.kstream">Windowed</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#countByKey(org.apache.kafka.streams.kstream.Windows)">countByKey</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Windows.html" title="class in org.apache.kafka.streams.kstream">Windows</a><W> windows)</code> |
| <div class="block">Count number of records of this stream by key on a window basis into a new instance of windowed <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> |
| with default serializers and deserializers.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><W extends <a href="../../../../../org/apache/kafka/streams/kstream/Window.html" title="class in org.apache.kafka.streams.kstream">Window</a>> <br><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/Windowed.html" title="class in org.apache.kafka.streams.kstream">Windowed</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#countByKey(org.apache.kafka.streams.kstream.Windows,%20org.apache.kafka.common.serialization.Serde)">countByKey</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Windows.html" title="class in org.apache.kafka.streams.kstream">Windows</a><W> windows, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde)</code> |
| <div class="block">Count number of records of this stream by key on a window basis into a new instance of windowed <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#filter(org.apache.kafka.streams.kstream.Predicate)">filter</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Predicate.html" title="interface in org.apache.kafka.streams.kstream">Predicate</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> predicate)</code> |
| <div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that consists of all elements of this stream which satisfy a predicate.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#filterNot(org.apache.kafka.streams.kstream.Predicate)">filterNot</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Predicate.html" title="interface in org.apache.kafka.streams.kstream">Predicate</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> predicate)</code> |
| <div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that consists all elements of this stream which do not satisfy a predicate.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><K1,V1> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><K1,V1></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#flatMap(org.apache.kafka.streams.kstream.KeyValueMapper)">flatMap</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/KeyValueMapper.html" title="interface in org.apache.kafka.streams.kstream">KeyValueMapper</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Iterable.html?is-external=true" title="class or interface in java.lang">Iterable</a><<a href="../../../../../org/apache/kafka/streams/KeyValue.html" title="class in org.apache.kafka.streams">KeyValue</a><K1,V1>>> mapper)</code> |
| <div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> by transforming each element in this stream into zero or more elements in the new stream.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><V1> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#flatMapValues(org.apache.kafka.streams.kstream.ValueMapper)">flatMapValues</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/ValueMapper.html" title="interface in org.apache.kafka.streams.kstream">ValueMapper</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Iterable.html?is-external=true" title="class or interface in java.lang">Iterable</a><V1>> processor)</code> |
| <div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> by transforming the value of each element in this stream into zero or more values with the same key in the new stream.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#foreach(org.apache.kafka.streams.kstream.ForeachAction)">foreach</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/ForeachAction.html" title="interface in org.apache.kafka.streams.kstream">ForeachAction</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> action)</code> |
| <div class="block">Perform an action on each element of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><V1,R> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,R></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#join(org.apache.kafka.streams.kstream.KStream,%20org.apache.kafka.streams.kstream.ValueJoiner,%20org.apache.kafka.streams.kstream.JoinWindows)">join</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> otherStream, |
| <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream">ValueJoiner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1,R> joiner, |
| <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream">JoinWindows</a> windows)</code> |
| <div class="block">Combine element values of this stream with another <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a>'s elements of the same key using windowed Inner Join |
| with default serializers and deserializers.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><V1,R> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,R></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#join(org.apache.kafka.streams.kstream.KStream,%20org.apache.kafka.streams.kstream.ValueJoiner,%20org.apache.kafka.streams.kstream.JoinWindows,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde)">join</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> otherStream, |
| <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream">ValueJoiner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1,R> joiner, |
| <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream">JoinWindows</a> windows, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> thisValueSerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><V1> otherValueSerde)</code> |
| <div class="block">Combine element values of this stream with another <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a>'s elements of the same key using windowed Inner Join.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><V1,R> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,R></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#leftJoin(org.apache.kafka.streams.kstream.KStream,%20org.apache.kafka.streams.kstream.ValueJoiner,%20org.apache.kafka.streams.kstream.JoinWindows)">leftJoin</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> otherStream, |
| <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream">ValueJoiner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1,R> joiner, |
| <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream">JoinWindows</a> windows)</code> |
| <div class="block">Combine values of this stream with another <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a>'s elements of the same key using windowed Left Join |
| with default serializers and deserializers.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><V1,R> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,R></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#leftJoin(org.apache.kafka.streams.kstream.KStream,%20org.apache.kafka.streams.kstream.ValueJoiner,%20org.apache.kafka.streams.kstream.JoinWindows,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde)">leftJoin</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> otherStream, |
| <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream">ValueJoiner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1,R> joiner, |
| <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream">JoinWindows</a> windows, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><V1> otherValueSerde)</code> |
| <div class="block">Combine values of this stream with another <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a>'s elements of the same key using windowed Left Join.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><V1,V2> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V2></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#leftJoin(org.apache.kafka.streams.kstream.KTable,%20org.apache.kafka.streams.kstream.ValueJoiner)">leftJoin</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> table, |
| <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream">ValueJoiner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1,V2> joiner)</code> |
| <div class="block">Combine values of this stream with <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>'s elements of the same key using non-windowed Left Join.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><K1,V1> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><K1,V1></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#map(org.apache.kafka.streams.kstream.KeyValueMapper)">map</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/KeyValueMapper.html" title="interface in org.apache.kafka.streams.kstream">KeyValueMapper</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,<a href="../../../../../org/apache/kafka/streams/KeyValue.html" title="class in org.apache.kafka.streams">KeyValue</a><K1,V1>> mapper)</code> |
| <div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> by transforming each element in this stream into a different element in the new stream.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><V1> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#mapValues(org.apache.kafka.streams.kstream.ValueMapper)">mapValues</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/ValueMapper.html" title="interface in org.apache.kafka.streams.kstream">ValueMapper</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1> mapper)</code> |
| <div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> by transforming the value of each element in this stream into a new value in the new stream.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><V1,R> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,R></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#outerJoin(org.apache.kafka.streams.kstream.KStream,%20org.apache.kafka.streams.kstream.ValueJoiner,%20org.apache.kafka.streams.kstream.JoinWindows)">outerJoin</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> otherStream, |
| <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream">ValueJoiner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1,R> joiner, |
| <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream">JoinWindows</a> windows)</code> |
| <div class="block">Combine values of this stream with another <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a>'s elements of the same key using windowed Outer Join |
| with default serializers and deserializers.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><V1,R> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,R></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#outerJoin(org.apache.kafka.streams.kstream.KStream,%20org.apache.kafka.streams.kstream.ValueJoiner,%20org.apache.kafka.streams.kstream.JoinWindows,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde)">outerJoin</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> otherStream, |
| <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream">ValueJoiner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1,R> joiner, |
| <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream">JoinWindows</a> windows, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> thisValueSerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><V1> otherValueSerde)</code> |
| <div class="block">Combine values of this stream with another <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a>'s elements of the same key using windowed Outer Join.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#print()">print</a></strong>()</code> |
| <div class="block">Print the elements of this stream to System.out |
| |
| Implementors will need to override toString for keys and values that are not of |
| type String, Integer etc to get meaningful information.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#print(org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde)">print</a></strong>(<a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valSerde)</code> |
| <div class="block">Print the elements of this stream to System.out</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#process(org.apache.kafka.streams.processor.ProcessorSupplier,%20java.lang.String...)">process</a></strong>(<a href="../../../../../org/apache/kafka/streams/processor/ProcessorSupplier.html" title="interface in org.apache.kafka.streams.processor">ProcessorSupplier</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> processorSupplier, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>... stateStoreNames)</code> |
| <div class="block">Process all elements in this stream, one element at a time, by applying a <a href="../../../../../org/apache/kafka/streams/processor/Processor.html" title="interface in org.apache.kafka.streams.processor"><code>Processor</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#reduceByKey(org.apache.kafka.streams.kstream.Reducer,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde,%20java.lang.String)">reduceByKey</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Reducer.html" title="interface in org.apache.kafka.streams.kstream">Reducer</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> reducer, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valueSerde, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</code> |
| <div class="block">Combine values of this stream by key into a new instance of ever-updating <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#reduceByKey(org.apache.kafka.streams.kstream.Reducer,%20java.lang.String)">reduceByKey</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Reducer.html" title="interface in org.apache.kafka.streams.kstream">Reducer</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> reducer, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</code> |
| <div class="block">Combine values of this stream by key into a new instance of ever-updating <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> with default serializers and deserializers.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><W extends <a href="../../../../../org/apache/kafka/streams/kstream/Window.html" title="class in org.apache.kafka.streams.kstream">Window</a>> <br><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/Windowed.html" title="class in org.apache.kafka.streams.kstream">Windowed</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#reduceByKey(org.apache.kafka.streams.kstream.Reducer,%20org.apache.kafka.streams.kstream.Windows)">reduceByKey</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Reducer.html" title="interface in org.apache.kafka.streams.kstream">Reducer</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> reducer, |
| <a href="../../../../../org/apache/kafka/streams/kstream/Windows.html" title="class in org.apache.kafka.streams.kstream">Windows</a><W> windows)</code> |
| <div class="block">Combine values of this stream by key on a window basis into a new instance of windowed <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> |
| with default serializers and deserializers.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><W extends <a href="../../../../../org/apache/kafka/streams/kstream/Window.html" title="class in org.apache.kafka.streams.kstream">Window</a>> <br><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/Windowed.html" title="class in org.apache.kafka.streams.kstream">Windowed</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#reduceByKey(org.apache.kafka.streams.kstream.Reducer,%20org.apache.kafka.streams.kstream.Windows,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde)">reduceByKey</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/Reducer.html" title="interface in org.apache.kafka.streams.kstream">Reducer</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> reducer, |
| <a href="../../../../../org/apache/kafka/streams/kstream/Windows.html" title="class in org.apache.kafka.streams.kstream">Windows</a><W> windows, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valueSerde)</code> |
| <div class="block">Combine values of this stream by key on a window basis into a new instance of windowed <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><K1> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><K1,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#selectKey(org.apache.kafka.streams.kstream.KeyValueMapper)">selectKey</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/KeyValueMapper.html" title="interface in org.apache.kafka.streams.kstream">KeyValueMapper</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,K1> mapper)</code> |
| <div class="block">Create a new key from the current key and value.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#through(org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.streams.processor.StreamPartitioner,%20java.lang.String)">through</a></strong>(<a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valSerde, |
| <a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor">StreamPartitioner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> partitioner, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> topic)</code> |
| <div class="block">Materialize this stream to a topic, also creates a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> from the topic |
| using a customizable <a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor"><code>StreamPartitioner</code></a> to determine the distribution of records to partitions.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#through(org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde,%20java.lang.String)">through</a></strong>(<a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valSerde, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> topic)</code> |
| <div class="block">Materialize this stream to a topic, also creates a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> from the topic.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#through(org.apache.kafka.streams.processor.StreamPartitioner,%20java.lang.String)">through</a></strong>(<a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor">StreamPartitioner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> partitioner, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> topic)</code> |
| <div class="block">Materialize this stream to a topic, also creates a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> from the topic |
| using default serializers and deserializers and a customizable <a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor"><code>StreamPartitioner</code></a> to determine the distribution of records to partitions.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#through(java.lang.String)">through</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> topic)</code> |
| <div class="block">Materialize this stream to a topic, also creates a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> from the topic |
| using default serializers and deserializers and producer's <code>DefaultPartitioner</code>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#to(org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.streams.processor.StreamPartitioner,%20java.lang.String)">to</a></strong>(<a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valSerde, |
| <a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor">StreamPartitioner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> partitioner, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> topic)</code> |
| <div class="block">Materialize this stream to a topic using a customizable <a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor"><code>StreamPartitioner</code></a> to determine the distribution of records to partitions.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#to(org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde,%20java.lang.String)">to</a></strong>(<a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valSerde, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> topic)</code> |
| <div class="block">Materialize this stream to a topic.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#to(org.apache.kafka.streams.processor.StreamPartitioner,%20java.lang.String)">to</a></strong>(<a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor">StreamPartitioner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> partitioner, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> topic)</code> |
| <div class="block">Materialize this stream to a topic using default serializers specified in the config and a customizable |
| <a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor"><code>StreamPartitioner</code></a> to determine the distribution of records to partitions.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#to(java.lang.String)">to</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> topic)</code> |
| <div class="block">Materialize this stream to a topic using default serializers specified in the config |
| and producer's <code>DefaultPartitioner</code>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><K1,V1> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><K1,V1></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#transform(org.apache.kafka.streams.kstream.TransformerSupplier,%20java.lang.String...)">transform</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/TransformerSupplier.html" title="interface in org.apache.kafka.streams.kstream">TransformerSupplier</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,<a href="../../../../../org/apache/kafka/streams/KeyValue.html" title="class in org.apache.kafka.streams">KeyValue</a><K1,V1>> transformerSupplier, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>... stateStoreNames)</code> |
| <div class="block">Create a new <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> instance by applying a <a href="../../../../../org/apache/kafka/streams/kstream/Transformer.html" title="interface in org.apache.kafka.streams.kstream"><code>Transformer</code></a> to all elements in this stream, one element at a time.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><R> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,R></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#transformValues(org.apache.kafka.streams.kstream.ValueTransformerSupplier,%20java.lang.String...)">transformValues</a></strong>(<a href="../../../../../org/apache/kafka/streams/kstream/ValueTransformerSupplier.html" title="interface in org.apache.kafka.streams.kstream">ValueTransformerSupplier</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,R> valueTransformerSupplier, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>... stateStoreNames)</code> |
| <div class="block">Create a new <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> instance by applying a <a href="../../../../../org/apache/kafka/streams/kstream/ValueTransformer.html" title="interface in org.apache.kafka.streams.kstream"><code>ValueTransformer</code></a> to all values in this stream, one element at a time.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#writeAsText(java.lang.String)">writeAsText</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> filePath)</code> |
| <div class="block">Write the elements of this stream to a file at the given path.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#writeAsText(java.lang.String,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde)">writeAsText</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> filePath, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valSerde)</code> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
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| </a> |
| <h3>Method Detail</h3> |
| <a name="filter(org.apache.kafka.streams.kstream.Predicate)"> |
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| <h4>filter</h4> |
| <pre><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> filter(<a href="../../../../../org/apache/kafka/streams/kstream/Predicate.html" title="interface in org.apache.kafka.streams.kstream">Predicate</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> predicate)</pre> |
| <div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that consists of all elements of this stream which satisfy a predicate.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>predicate</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/Predicate.html" title="interface in org.apache.kafka.streams.kstream"><code>Predicate</code></a></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains only those records that satisfy the given predicate</dd></dl> |
| </li> |
| </ul> |
| <a name="filterNot(org.apache.kafka.streams.kstream.Predicate)"> |
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| <h4>filterNot</h4> |
| <pre><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> filterNot(<a href="../../../../../org/apache/kafka/streams/kstream/Predicate.html" title="interface in org.apache.kafka.streams.kstream">Predicate</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> predicate)</pre> |
| <div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that consists all elements of this stream which do not satisfy a predicate.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>predicate</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/Predicate.html" title="interface in org.apache.kafka.streams.kstream"><code>Predicate</code></a></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains only those records that do not satisfy the given predicate</dd></dl> |
| </li> |
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| <a name="selectKey(org.apache.kafka.streams.kstream.KeyValueMapper)"> |
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| <h4>selectKey</h4> |
| <pre><K1> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><K1,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> selectKey(<a href="../../../../../org/apache/kafka/streams/kstream/KeyValueMapper.html" title="interface in org.apache.kafka.streams.kstream">KeyValueMapper</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,K1> mapper)</pre> |
| <div class="block">Create a new key from the current key and value.</div> |
| <dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>K1</code> - the new key type on the stream</dd><dt><span class="strong">Parameters:</span></dt><dd><code>mapper</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/KeyValueMapper.html" title="interface in org.apache.kafka.streams.kstream"><code>KeyValueMapper</code></a></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains records with different key type and same value type</dd></dl> |
| </li> |
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| <a name="map(org.apache.kafka.streams.kstream.KeyValueMapper)"> |
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| <pre><K1,V1> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><K1,V1> map(<a href="../../../../../org/apache/kafka/streams/kstream/KeyValueMapper.html" title="interface in org.apache.kafka.streams.kstream">KeyValueMapper</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,<a href="../../../../../org/apache/kafka/streams/KeyValue.html" title="class in org.apache.kafka.streams">KeyValue</a><K1,V1>> mapper)</pre> |
| <div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> by transforming each element in this stream into a different element in the new stream.</div> |
| <dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>K1</code> - the key type of the new stream</dd><dd><code>V1</code> - the value type of the new stream</dd><dt><span class="strong">Parameters:</span></dt><dd><code>mapper</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/KeyValueMapper.html" title="interface in org.apache.kafka.streams.kstream"><code>KeyValueMapper</code></a></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains records with new key and value type</dd></dl> |
| </li> |
| </ul> |
| <a name="mapValues(org.apache.kafka.streams.kstream.ValueMapper)"> |
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| <h4>mapValues</h4> |
| <pre><V1> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> mapValues(<a href="../../../../../org/apache/kafka/streams/kstream/ValueMapper.html" title="interface in org.apache.kafka.streams.kstream">ValueMapper</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1> mapper)</pre> |
| <div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> by transforming the value of each element in this stream into a new value in the new stream.</div> |
| <dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>V1</code> - the value type of the new stream</dd><dt><span class="strong">Parameters:</span></dt><dd><code>mapper</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/ValueMapper.html" title="interface in org.apache.kafka.streams.kstream"><code>ValueMapper</code></a></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains records with unmodified keys and new values of different type</dd></dl> |
| </li> |
| </ul> |
| <a name="print()"> |
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| <h4>print</h4> |
| <pre>void print()</pre> |
| <div class="block">Print the elements of this stream to System.out |
| |
| Implementors will need to override toString for keys and values that are not of |
| type String, Integer etc to get meaningful information.</div> |
| </li> |
| </ul> |
| <a name="print(org.apache.kafka.common.serialization.Serde, org.apache.kafka.common.serialization.Serde)"> |
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| <h4>print</h4> |
| <pre>void print(<a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valSerde)</pre> |
| <div class="block">Print the elements of this stream to System.out</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>keySerde</code> - key serde used to send key-value pairs, |
| if not specified the default serde defined in the configs will be used</dd><dd><code>valSerde</code> - value serde used to send key-value pairs, |
| if not specified the default serde defined in the configs will be used |
| |
| Implementors will need to override toString for keys and values that are not of |
| type String, Integer etc to get meaningful information.</dd></dl> |
| </li> |
| </ul> |
| <a name="writeAsText(java.lang.String)"> |
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| <pre>void writeAsText(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> filePath)</pre> |
| <div class="block">Write the elements of this stream to a file at the given path.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>filePath</code> - name of file to write to |
| |
| Implementors will need to override toString for keys and values that are not of |
| type String, Integer etc to get meaningful information.</dd></dl> |
| </li> |
| </ul> |
| <a name="writeAsText(java.lang.String, org.apache.kafka.common.serialization.Serde, org.apache.kafka.common.serialization.Serde)"> |
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| <pre>void writeAsText(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> filePath, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valSerde)</pre> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>filePath</code> - name of file to write to</dd><dd><code>keySerde</code> - key serde used to send key-value pairs, |
| if not specified the default serde defined in the configs will be used</dd><dd><code>valSerde</code> - value serde used to send key-value pairs, |
| if not specified the default serde defined in the configs will be used |
| |
| Implementors will need to override toString for keys and values that are not of |
| type String, Integer etc to get meaningful information.</dd></dl> |
| </li> |
| </ul> |
| <a name="flatMap(org.apache.kafka.streams.kstream.KeyValueMapper)"> |
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| <pre><K1,V1> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><K1,V1> flatMap(<a href="../../../../../org/apache/kafka/streams/kstream/KeyValueMapper.html" title="interface in org.apache.kafka.streams.kstream">KeyValueMapper</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Iterable.html?is-external=true" title="class or interface in java.lang">Iterable</a><<a href="../../../../../org/apache/kafka/streams/KeyValue.html" title="class in org.apache.kafka.streams">KeyValue</a><K1,V1>>> mapper)</pre> |
| <div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> by transforming each element in this stream into zero or more elements in the new stream.</div> |
| <dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>K1</code> - the key type of the new stream</dd><dd><code>V1</code> - the value type of the new stream</dd><dt><span class="strong">Parameters:</span></dt><dd><code>mapper</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/KeyValueMapper.html" title="interface in org.apache.kafka.streams.kstream"><code>KeyValueMapper</code></a></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains more or less records with new key and value type</dd></dl> |
| </li> |
| </ul> |
| <a name="flatMapValues(org.apache.kafka.streams.kstream.ValueMapper)"> |
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| <h4>flatMapValues</h4> |
| <pre><V1> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> flatMapValues(<a href="../../../../../org/apache/kafka/streams/kstream/ValueMapper.html" title="interface in org.apache.kafka.streams.kstream">ValueMapper</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Iterable.html?is-external=true" title="class or interface in java.lang">Iterable</a><V1>> processor)</pre> |
| <div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> by transforming the value of each element in this stream into zero or more values with the same key in the new stream.</div> |
| <dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>V1</code> - the value type of the new stream</dd><dt><span class="strong">Parameters:</span></dt><dd><code>processor</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/ValueMapper.html" title="interface in org.apache.kafka.streams.kstream"><code>ValueMapper</code></a></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains more or less records with unmodified keys and new values of different type</dd></dl> |
| </li> |
| </ul> |
| <a name="branch(org.apache.kafka.streams.kstream.Predicate...)"> |
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| </a> |
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| <h4>branch</h4> |
| <pre><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>>[] branch(<a href="../../../../../org/apache/kafka/streams/kstream/Predicate.html" title="interface in org.apache.kafka.streams.kstream">Predicate</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>>... predicates)</pre> |
| <div class="block">Creates an array of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> from this stream by branching the elements in the original stream based on the supplied predicates. |
| Each element is evaluated against the supplied predicates, and predicates are evaluated in order. Each stream in the result array |
| corresponds position-wise (index) to the predicate in the supplied predicates. The branching happens on first-match: An element |
| in the original stream is assigned to the corresponding result stream for the first predicate that evaluates to true, and |
| assigned to this stream only. An element will be dropped if none of the predicates evaluate to true.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>predicates</code> - the ordered list of <a href="../../../../../org/apache/kafka/streams/kstream/Predicate.html" title="interface in org.apache.kafka.streams.kstream"><code>Predicate</code></a> instances</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>multiple distinct substreams of this <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a></dd></dl> |
| </li> |
| </ul> |
| <a name="through(java.lang.String)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>through</h4> |
| <pre><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> through(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> topic)</pre> |
| <div class="block">Materialize this stream to a topic, also creates a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> from the topic |
| using default serializers and deserializers and producer's <code>DefaultPartitioner</code>. |
| This is equivalent to calling <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#to(java.lang.String)"><code>to(String)</code></a> and <a href="../../../../../org/apache/kafka/streams/kstream/KStreamBuilder.html#stream(java.lang.String...)"><code>KStreamBuilder.stream(String...)</code></a>.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>topic</code> - the topic name</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains the exact same records as this <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a></dd></dl> |
| </li> |
| </ul> |
| <a name="foreach(org.apache.kafka.streams.kstream.ForeachAction)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>foreach</h4> |
| <pre>void foreach(<a href="../../../../../org/apache/kafka/streams/kstream/ForeachAction.html" title="interface in org.apache.kafka.streams.kstream">ForeachAction</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> action)</pre> |
| <div class="block">Perform an action on each element of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a>. |
| Note that this is a terminal operation that returns void.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>action</code> - an action to perform on each element</dd></dl> |
| </li> |
| </ul> |
| <a name="through(org.apache.kafka.streams.processor.StreamPartitioner, java.lang.String)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>through</h4> |
| <pre><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> through(<a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor">StreamPartitioner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> partitioner, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> topic)</pre> |
| <div class="block">Materialize this stream to a topic, also creates a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> from the topic |
| using default serializers and deserializers and a customizable <a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor"><code>StreamPartitioner</code></a> to determine the distribution of records to partitions. |
| This is equivalent to calling <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#to(org.apache.kafka.streams.processor.StreamPartitioner,%20java.lang.String)"><code>to(StreamPartitioner, String)</code></a> and <a href="../../../../../org/apache/kafka/streams/kstream/KStreamBuilder.html#stream(java.lang.String...)"><code>KStreamBuilder.stream(String...)</code></a>.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>partitioner</code> - the function used to determine how records are distributed among partitions of the topic, |
| if not specified producer's <code>DefaultPartitioner</code> will be used</dd><dd><code>topic</code> - the topic name</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains the exact same records as this <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a></dd></dl> |
| </li> |
| </ul> |
| <a name="through(org.apache.kafka.common.serialization.Serde, org.apache.kafka.common.serialization.Serde, java.lang.String)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>through</h4> |
| <pre><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> through(<a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valSerde, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> topic)</pre> |
| <div class="block">Materialize this stream to a topic, also creates a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> from the topic. |
| If <code>keySerde</code> provides a <code>org.apache.kafka.streams.kstream.internals.WindowedSerializer</code> |
| for the key <code>org.apache.kafka.streams.kstream.internals.WindowedStreamPartitioner</code> is used |
| — otherwise producer's <code>DefaultPartitioner</code> is used. |
| This is equivalent to calling <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#to(org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde,%20java.lang.String)"><code>to(Serde, Serde, String)</code></a> and |
| <a href="../../../../../org/apache/kafka/streams/kstream/KStreamBuilder.html#stream(org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde,%20java.lang.String...)"><code>KStreamBuilder.stream(Serde, Serde, String...)</code></a>.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>keySerde</code> - key serde used to send key-value pairs, |
| if not specified the default key serde defined in the configuration will be used</dd><dd><code>valSerde</code> - value serde used to send key-value pairs, |
| if not specified the default value serde defined in the configuration will be used</dd><dd><code>topic</code> - the topic name</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains the exact same records as this <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a></dd></dl> |
| </li> |
| </ul> |
| <a name="through(org.apache.kafka.common.serialization.Serde, org.apache.kafka.common.serialization.Serde, org.apache.kafka.streams.processor.StreamPartitioner, java.lang.String)"> |
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| <h4>through</h4> |
| <pre><a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> through(<a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valSerde, |
| <a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor">StreamPartitioner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> partitioner, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> topic)</pre> |
| <div class="block">Materialize this stream to a topic, also creates a new instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> from the topic |
| using a customizable <a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor"><code>StreamPartitioner</code></a> to determine the distribution of records to partitions. |
| This is equivalent to calling <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html#to(org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.streams.processor.StreamPartitioner,%20java.lang.String)"><code>to(Serde, Serde, StreamPartitioner, String)</code></a> and |
| <a href="../../../../../org/apache/kafka/streams/kstream/KStreamBuilder.html#stream(org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde,%20java.lang.String...)"><code>KStreamBuilder.stream(Serde, Serde, String...)</code></a>.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>keySerde</code> - key serde used to send key-value pairs, |
| if not specified the default key serde defined in the configuration will be used</dd><dd><code>valSerde</code> - value serde used to send key-value pairs, |
| if not specified the default value serde defined in the configuration will be used</dd><dd><code>partitioner</code> - the function used to determine how records are distributed among partitions of the topic, |
| if not specified and <code>keySerde</code> provides a <code>org.apache.kafka.streams.kstream.internals.WindowedSerializer</code> for the key |
| <code>org.apache.kafka.streams.kstream.internals.WindowedStreamPartitioner</code> will be used |
| — otherwise <code>DefaultPartitioner</code> will be used</dd><dd><code>topic</code> - the topic name</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains the exact same records as this <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a></dd></dl> |
| </li> |
| </ul> |
| <a name="to(java.lang.String)"> |
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| <pre>void to(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> topic)</pre> |
| <div class="block">Materialize this stream to a topic using default serializers specified in the config |
| and producer's <code>DefaultPartitioner</code>.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>topic</code> - the topic name</dd></dl> |
| </li> |
| </ul> |
| <a name="to(org.apache.kafka.streams.processor.StreamPartitioner, java.lang.String)"> |
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| <pre>void to(<a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor">StreamPartitioner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> partitioner, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> topic)</pre> |
| <div class="block">Materialize this stream to a topic using default serializers specified in the config and a customizable |
| <a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor"><code>StreamPartitioner</code></a> to determine the distribution of records to partitions.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>partitioner</code> - the function used to determine how records are distributed among partitions of the topic, |
| if not specified producer's <code>DefaultPartitioner</code> will be used</dd><dd><code>topic</code> - the topic name</dd></dl> |
| </li> |
| </ul> |
| <a name="to(org.apache.kafka.common.serialization.Serde, org.apache.kafka.common.serialization.Serde, java.lang.String)"> |
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| <h4>to</h4> |
| <pre>void to(<a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valSerde, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> topic)</pre> |
| <div class="block">Materialize this stream to a topic. If <code>keySerde</code> provides a |
| <code>org.apache.kafka.streams.kstream.internals.WindowedSerializer</code> for the key |
| <code>org.apache.kafka.streams.kstream.internals.WindowedStreamPartitioner</code> is used |
| — otherwise producer's <code>DefaultPartitioner</code> is used.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>keySerde</code> - key serde used to send key-value pairs, |
| if not specified the default serde defined in the configs will be used</dd><dd><code>valSerde</code> - value serde used to send key-value pairs, |
| if not specified the default serde defined in the configs will be used</dd><dd><code>topic</code> - the topic name</dd></dl> |
| </li> |
| </ul> |
| <a name="to(org.apache.kafka.common.serialization.Serde, org.apache.kafka.common.serialization.Serde, org.apache.kafka.streams.processor.StreamPartitioner, java.lang.String)"> |
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| <pre>void to(<a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valSerde, |
| <a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor">StreamPartitioner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> partitioner, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> topic)</pre> |
| <div class="block">Materialize this stream to a topic using a customizable <a href="../../../../../org/apache/kafka/streams/processor/StreamPartitioner.html" title="interface in org.apache.kafka.streams.processor"><code>StreamPartitioner</code></a> to determine the distribution of records to partitions.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>keySerde</code> - key serde used to send key-value pairs, |
| if not specified the default serde defined in the configs will be used</dd><dd><code>valSerde</code> - value serde used to send key-value pairs, |
| if not specified the default serde defined in the configs will be used</dd><dd><code>partitioner</code> - the function used to determine how records are distributed among partitions of the topic, |
| if not specified and <code>keySerde</code> provides a <code>org.apache.kafka.streams.kstream.internals.WindowedSerializer</code> for the key |
| <code>org.apache.kafka.streams.kstream.internals.WindowedStreamPartitioner</code> will be used |
| — otherwise <code>DefaultPartitioner</code> will be used</dd><dd><code>topic</code> - the topic name</dd></dl> |
| </li> |
| </ul> |
| <a name="transform(org.apache.kafka.streams.kstream.TransformerSupplier, java.lang.String...)"> |
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| <h4>transform</h4> |
| <pre><K1,V1> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><K1,V1> transform(<a href="../../../../../org/apache/kafka/streams/kstream/TransformerSupplier.html" title="interface in org.apache.kafka.streams.kstream">TransformerSupplier</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,<a href="../../../../../org/apache/kafka/streams/KeyValue.html" title="class in org.apache.kafka.streams">KeyValue</a><K1,V1>> transformerSupplier, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>... stateStoreNames)</pre> |
| <div class="block">Create a new <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> instance by applying a <a href="../../../../../org/apache/kafka/streams/kstream/Transformer.html" title="interface in org.apache.kafka.streams.kstream"><code>Transformer</code></a> to all elements in this stream, one element at a time.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>transformerSupplier</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/TransformerSupplier.html" title="interface in org.apache.kafka.streams.kstream"><code>TransformerSupplier</code></a> that generates <a href="../../../../../org/apache/kafka/streams/kstream/Transformer.html" title="interface in org.apache.kafka.streams.kstream"><code>Transformer</code></a></dd><dd><code>stateStoreNames</code> - the names of the state store used by the processor</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a new <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> with transformed key and value types</dd></dl> |
| </li> |
| </ul> |
| <a name="transformValues(org.apache.kafka.streams.kstream.ValueTransformerSupplier, java.lang.String...)"> |
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| <h4>transformValues</h4> |
| <pre><R> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,R> transformValues(<a href="../../../../../org/apache/kafka/streams/kstream/ValueTransformerSupplier.html" title="interface in org.apache.kafka.streams.kstream">ValueTransformerSupplier</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,R> valueTransformerSupplier, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>... stateStoreNames)</pre> |
| <div class="block">Create a new <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> instance by applying a <a href="../../../../../org/apache/kafka/streams/kstream/ValueTransformer.html" title="interface in org.apache.kafka.streams.kstream"><code>ValueTransformer</code></a> to all values in this stream, one element at a time.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>valueTransformerSupplier</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/ValueTransformerSupplier.html" title="interface in org.apache.kafka.streams.kstream"><code>ValueTransformerSupplier</code></a> that generates <a href="../../../../../org/apache/kafka/streams/kstream/ValueTransformer.html" title="interface in org.apache.kafka.streams.kstream"><code>ValueTransformer</code></a></dd><dd><code>stateStoreNames</code> - the names of the state store used by the processor</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains records with unmodified keys and transformed values with type <code>R</code></dd></dl> |
| </li> |
| </ul> |
| <a name="process(org.apache.kafka.streams.processor.ProcessorSupplier, java.lang.String...)"> |
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| <h4>process</h4> |
| <pre>void process(<a href="../../../../../org/apache/kafka/streams/processor/ProcessorSupplier.html" title="interface in org.apache.kafka.streams.processor">ProcessorSupplier</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> processorSupplier, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>... stateStoreNames)</pre> |
| <div class="block">Process all elements in this stream, one element at a time, by applying a <a href="../../../../../org/apache/kafka/streams/processor/Processor.html" title="interface in org.apache.kafka.streams.processor"><code>Processor</code></a>.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>processorSupplier</code> - the supplier of <a href="../../../../../org/apache/kafka/streams/processor/ProcessorSupplier.html" title="interface in org.apache.kafka.streams.processor"><code>ProcessorSupplier</code></a> that generates <a href="../../../../../org/apache/kafka/streams/processor/Processor.html" title="interface in org.apache.kafka.streams.processor"><code>Processor</code></a></dd><dd><code>stateStoreNames</code> - the names of the state store used by the processor</dd></dl> |
| </li> |
| </ul> |
| <a name="join(org.apache.kafka.streams.kstream.KStream, org.apache.kafka.streams.kstream.ValueJoiner, org.apache.kafka.streams.kstream.JoinWindows, org.apache.kafka.common.serialization.Serde, org.apache.kafka.common.serialization.Serde, org.apache.kafka.common.serialization.Serde)"> |
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| <h4>join</h4> |
| <pre><V1,R> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,R> join(<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> otherStream, |
| <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream">ValueJoiner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1,R> joiner, |
| <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream">JoinWindows</a> windows, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> thisValueSerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><V1> otherValueSerde)</pre> |
| <div class="block">Combine element values of this stream with another <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a>'s elements of the same key using windowed Inner Join.</div> |
| <dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>V1</code> - the value type of the other stream</dd><dd><code>R</code> - the value type of the new stream</dd><dt><span class="strong">Parameters:</span></dt><dd><code>otherStream</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> joined with this stream</dd><dd><code>joiner</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream"><code>ValueJoiner</code></a></dd><dd><code>windows</code> - the specification of the <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream"><code>JoinWindows</code></a></dd><dd><code>keySerde</code> - key serdes for materializing both streams, |
| if not specified the default serdes defined in the configs will be used</dd><dd><code>thisValueSerde</code> - value serdes for materializing this stream, |
| if not specified the default serdes defined in the configs will be used</dd><dd><code>otherValueSerde</code> - value serdes for materializing the other stream, |
| if not specified the default serdes defined in the configs will be used</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains join-records for each key and values computed by the given <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream"><code>ValueJoiner</code></a>, |
| one for each matched record-pair with the same key and within the joining window intervals</dd></dl> |
| </li> |
| </ul> |
| <a name="join(org.apache.kafka.streams.kstream.KStream, org.apache.kafka.streams.kstream.ValueJoiner, org.apache.kafka.streams.kstream.JoinWindows)"> |
| <!-- --> |
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| <pre><V1,R> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,R> join(<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> otherStream, |
| <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream">ValueJoiner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1,R> joiner, |
| <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream">JoinWindows</a> windows)</pre> |
| <div class="block">Combine element values of this stream with another <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a>'s elements of the same key using windowed Inner Join |
| with default serializers and deserializers.</div> |
| <dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>V1</code> - the value type of the other stream</dd><dd><code>R</code> - the value type of the new stream</dd><dt><span class="strong">Parameters:</span></dt><dd><code>otherStream</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> joined with this stream</dd><dd><code>joiner</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream"><code>ValueJoiner</code></a></dd><dd><code>windows</code> - the specification of the <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream"><code>JoinWindows</code></a></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains join-records for each key and values computed by the given <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream"><code>ValueJoiner</code></a>, |
| one for each matched record-pair with the same key and within the joining window intervals</dd></dl> |
| </li> |
| </ul> |
| <a name="outerJoin(org.apache.kafka.streams.kstream.KStream, org.apache.kafka.streams.kstream.ValueJoiner, org.apache.kafka.streams.kstream.JoinWindows, org.apache.kafka.common.serialization.Serde, org.apache.kafka.common.serialization.Serde, org.apache.kafka.common.serialization.Serde)"> |
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| <pre><V1,R> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,R> outerJoin(<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> otherStream, |
| <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream">ValueJoiner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1,R> joiner, |
| <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream">JoinWindows</a> windows, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> thisValueSerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><V1> otherValueSerde)</pre> |
| <div class="block">Combine values of this stream with another <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a>'s elements of the same key using windowed Outer Join.</div> |
| <dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>V1</code> - the value type of the other stream</dd><dd><code>R</code> - the value type of the new stream</dd><dt><span class="strong">Parameters:</span></dt><dd><code>otherStream</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> joined with this stream</dd><dd><code>joiner</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream"><code>ValueJoiner</code></a></dd><dd><code>windows</code> - the specification of the <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream"><code>JoinWindows</code></a></dd><dd><code>keySerde</code> - key serdes for materializing both streams, |
| if not specified the default serdes defined in the configs will be used</dd><dd><code>thisValueSerde</code> - value serdes for materializing this stream, |
| if not specified the default serdes defined in the configs will be used</dd><dd><code>otherValueSerde</code> - value serdes for materializing the other stream, |
| if not specified the default serdes defined in the configs will be used</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains join-records for each key and values computed by the given <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream"><code>ValueJoiner</code></a>, |
| one for each matched record-pair with the same key and within the joining window intervals</dd></dl> |
| </li> |
| </ul> |
| <a name="outerJoin(org.apache.kafka.streams.kstream.KStream, org.apache.kafka.streams.kstream.ValueJoiner, org.apache.kafka.streams.kstream.JoinWindows)"> |
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| <pre><V1,R> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,R> outerJoin(<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> otherStream, |
| <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream">ValueJoiner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1,R> joiner, |
| <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream">JoinWindows</a> windows)</pre> |
| <div class="block">Combine values of this stream with another <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a>'s elements of the same key using windowed Outer Join |
| with default serializers and deserializers.</div> |
| <dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>V1</code> - the value type of the other stream</dd><dd><code>R</code> - the value type of the new stream</dd><dt><span class="strong">Parameters:</span></dt><dd><code>otherStream</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> joined with this stream</dd><dd><code>joiner</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream"><code>ValueJoiner</code></a></dd><dd><code>windows</code> - the specification of the <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream"><code>JoinWindows</code></a></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains join-records for each key and values computed by the given <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream"><code>ValueJoiner</code></a>, |
| one for each matched record-pair with the same key and within the joining window intervals</dd></dl> |
| </li> |
| </ul> |
| <a name="leftJoin(org.apache.kafka.streams.kstream.KStream, org.apache.kafka.streams.kstream.ValueJoiner, org.apache.kafka.streams.kstream.JoinWindows, org.apache.kafka.common.serialization.Serde, org.apache.kafka.common.serialization.Serde)"> |
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| <pre><V1,R> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,R> leftJoin(<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> otherStream, |
| <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream">ValueJoiner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1,R> joiner, |
| <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream">JoinWindows</a> windows, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><V1> otherValueSerde)</pre> |
| <div class="block">Combine values of this stream with another <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a>'s elements of the same key using windowed Left Join.</div> |
| <dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>V1</code> - the value type of the other stream</dd><dd><code>R</code> - the value type of the new stream</dd><dt><span class="strong">Parameters:</span></dt><dd><code>otherStream</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> joined with this stream</dd><dd><code>joiner</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream"><code>ValueJoiner</code></a></dd><dd><code>windows</code> - the specification of the <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream"><code>JoinWindows</code></a></dd><dd><code>keySerde</code> - key serdes for materializing the other stream, |
| if not specified the default serdes defined in the configs will be used</dd><dd><code>otherValueSerde</code> - value serdes for materializing the other stream, |
| if not specified the default serdes defined in the configs will be used</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains join-records for each key and values computed by the given <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream"><code>ValueJoiner</code></a>, |
| one for each matched record-pair with the same key and within the joining window intervals</dd></dl> |
| </li> |
| </ul> |
| <a name="leftJoin(org.apache.kafka.streams.kstream.KStream, org.apache.kafka.streams.kstream.ValueJoiner, org.apache.kafka.streams.kstream.JoinWindows)"> |
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| <pre><V1,R> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,R> leftJoin(<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> otherStream, |
| <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream">ValueJoiner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1,R> joiner, |
| <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream">JoinWindows</a> windows)</pre> |
| <div class="block">Combine values of this stream with another <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a>'s elements of the same key using windowed Left Join |
| with default serializers and deserializers.</div> |
| <dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>V1</code> - the value type of the other stream</dd><dd><code>R</code> - the value type of the new stream</dd><dt><span class="strong">Parameters:</span></dt><dd><code>otherStream</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> joined with this stream</dd><dd><code>joiner</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream"><code>ValueJoiner</code></a></dd><dd><code>windows</code> - the specification of the <a href="../../../../../org/apache/kafka/streams/kstream/JoinWindows.html" title="class in org.apache.kafka.streams.kstream"><code>JoinWindows</code></a></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains join-records for each key and values computed by the given <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream"><code>ValueJoiner</code></a>, |
| one for each matched record-pair with the same key and within the joining window intervals</dd></dl> |
| </li> |
| </ul> |
| <a name="leftJoin(org.apache.kafka.streams.kstream.KTable, org.apache.kafka.streams.kstream.ValueJoiner)"> |
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| <pre><V1,V2> <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream">KStream</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V2> leftJoin(<a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,V1> table, |
| <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream">ValueJoiner</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,V1,V2> joiner)</pre> |
| <div class="block">Combine values of this stream with <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>'s elements of the same key using non-windowed Left Join.</div> |
| <dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>V1</code> - the value type of the table</dd><dd><code>V2</code> - the value type of the new stream</dd><dt><span class="strong">Parameters:</span></dt><dd><code>table</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> joined with this stream</dd><dd><code>joiner</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream"><code>ValueJoiner</code></a></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="interface in org.apache.kafka.streams.kstream"><code>KStream</code></a> that contains join-records for each key and values computed by the given <a href="../../../../../org/apache/kafka/streams/kstream/ValueJoiner.html" title="interface in org.apache.kafka.streams.kstream"><code>ValueJoiner</code></a>, |
| one for each matched record-pair with the same key</dd></dl> |
| </li> |
| </ul> |
| <a name="reduceByKey(org.apache.kafka.streams.kstream.Reducer, org.apache.kafka.streams.kstream.Windows, org.apache.kafka.common.serialization.Serde, org.apache.kafka.common.serialization.Serde)"> |
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| <pre><W extends <a href="../../../../../org/apache/kafka/streams/kstream/Window.html" title="class in org.apache.kafka.streams.kstream">Window</a>> <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/Windowed.html" title="class in org.apache.kafka.streams.kstream">Windowed</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> reduceByKey(<a href="../../../../../org/apache/kafka/streams/kstream/Reducer.html" title="interface in org.apache.kafka.streams.kstream">Reducer</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> reducer, |
| <a href="../../../../../org/apache/kafka/streams/kstream/Windows.html" title="class in org.apache.kafka.streams.kstream">Windows</a><W> windows, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valueSerde)</pre> |
| <div class="block">Combine values of this stream by key on a window basis into a new instance of windowed <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>reducer</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/Reducer.html" title="interface in org.apache.kafka.streams.kstream"><code>Reducer</code></a></dd><dd><code>windows</code> - the specification of the aggregation <a href="../../../../../org/apache/kafka/streams/kstream/Windows.html" title="class in org.apache.kafka.streams.kstream"><code>Windows</code></a></dd><dd><code>keySerde</code> - key serdes for materializing the aggregated table, |
| if not specified the default serdes defined in the configs will be used</dd><dd><code>valueSerde</code> - value serdes for materializing the aggregated table, |
| if not specified the default serdes defined in the configs will be used</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a windowed <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> which can be treated as a list of <code>KTable</code>s |
| where each table contains records with unmodified keys and values |
| that represent the latest (rolling) aggregate for each key within that window</dd></dl> |
| </li> |
| </ul> |
| <a name="reduceByKey(org.apache.kafka.streams.kstream.Reducer, org.apache.kafka.streams.kstream.Windows)"> |
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| <pre><W extends <a href="../../../../../org/apache/kafka/streams/kstream/Window.html" title="class in org.apache.kafka.streams.kstream">Window</a>> <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/Windowed.html" title="class in org.apache.kafka.streams.kstream">Windowed</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> reduceByKey(<a href="../../../../../org/apache/kafka/streams/kstream/Reducer.html" title="interface in org.apache.kafka.streams.kstream">Reducer</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> reducer, |
| <a href="../../../../../org/apache/kafka/streams/kstream/Windows.html" title="class in org.apache.kafka.streams.kstream">Windows</a><W> windows)</pre> |
| <div class="block">Combine values of this stream by key on a window basis into a new instance of windowed <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> |
| with default serializers and deserializers.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>reducer</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/Reducer.html" title="interface in org.apache.kafka.streams.kstream"><code>Reducer</code></a></dd><dd><code>windows</code> - the specification of the aggregation <a href="../../../../../org/apache/kafka/streams/kstream/Windows.html" title="class in org.apache.kafka.streams.kstream"><code>Windows</code></a></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a windowed <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> which can be treated as a list of <code>KTable</code>s |
| where each table contains records with unmodified keys and values |
| that represent the latest (rolling) aggregate for each key within that window</dd></dl> |
| </li> |
| </ul> |
| <a name="reduceByKey(org.apache.kafka.streams.kstream.Reducer, org.apache.kafka.common.serialization.Serde, org.apache.kafka.common.serialization.Serde, java.lang.String)"> |
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| <pre><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> reduceByKey(<a href="../../../../../org/apache/kafka/streams/kstream/Reducer.html" title="interface in org.apache.kafka.streams.kstream">Reducer</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> reducer, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> valueSerde, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</pre> |
| <div class="block">Combine values of this stream by key into a new instance of ever-updating <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>reducer</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/Reducer.html" title="interface in org.apache.kafka.streams.kstream"><code>Reducer</code></a></dd><dd><code>keySerde</code> - key serdes for materializing the aggregated table, |
| if not specified the default serdes defined in the configs will be used</dd><dd><code>valueSerde</code> - value serdes for materializing the aggregated table, |
| if not specified the default serdes defined in the configs will be used</dd><dd><code>name</code> - the name of the resulted <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> that contains records with unmodified keys and values that represent the latest (rolling) aggregate for each key</dd></dl> |
| </li> |
| </ul> |
| <a name="reduceByKey(org.apache.kafka.streams.kstream.Reducer, java.lang.String)"> |
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| <pre><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> reduceByKey(<a href="../../../../../org/apache/kafka/streams/kstream/Reducer.html" title="interface in org.apache.kafka.streams.kstream">Reducer</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>> reducer, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</pre> |
| <div class="block">Combine values of this stream by key into a new instance of ever-updating <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> with default serializers and deserializers.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>reducer</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/Reducer.html" title="interface in org.apache.kafka.streams.kstream"><code>Reducer</code></a></dd><dd><code>name</code> - the name of the resulted <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> that contains records with unmodified keys and values that represent the latest (rolling) aggregate for each key</dd></dl> |
| </li> |
| </ul> |
| <a name="aggregateByKey(org.apache.kafka.streams.kstream.Initializer, org.apache.kafka.streams.kstream.Aggregator, org.apache.kafka.streams.kstream.Windows, org.apache.kafka.common.serialization.Serde, org.apache.kafka.common.serialization.Serde)"> |
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| <pre><T,W extends <a href="../../../../../org/apache/kafka/streams/kstream/Window.html" title="class in org.apache.kafka.streams.kstream">Window</a>> <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/Windowed.html" title="class in org.apache.kafka.streams.kstream">Windowed</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>>,T> aggregateByKey(<a href="../../../../../org/apache/kafka/streams/kstream/Initializer.html" title="interface in org.apache.kafka.streams.kstream">Initializer</a><T> initializer, |
| <a href="../../../../../org/apache/kafka/streams/kstream/Aggregator.html" title="interface in org.apache.kafka.streams.kstream">Aggregator</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,T> aggregator, |
| <a href="../../../../../org/apache/kafka/streams/kstream/Windows.html" title="class in org.apache.kafka.streams.kstream">Windows</a><W> windows, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><T> aggValueSerde)</pre> |
| <div class="block">Aggregate values of this stream by key on a window basis into a new instance of windowed <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>.</div> |
| <dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>T</code> - the value type of the resulted <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a></dd><dt><span class="strong">Parameters:</span></dt><dd><code>initializer</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/Initializer.html" title="interface in org.apache.kafka.streams.kstream"><code>Initializer</code></a></dd><dd><code>aggregator</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/Aggregator.html" title="interface in org.apache.kafka.streams.kstream"><code>Aggregator</code></a></dd><dd><code>windows</code> - the specification of the aggregation <a href="../../../../../org/apache/kafka/streams/kstream/Windows.html" title="class in org.apache.kafka.streams.kstream"><code>Windows</code></a></dd><dd><code>keySerde</code> - key serdes for materializing the aggregated table, |
| if not specified the default serdes defined in the configs will be used</dd><dd><code>aggValueSerde</code> - aggregate value serdes for materializing the aggregated table, |
| if not specified the default serdes defined in the configs will be used</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a windowed <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> which can be treated as a list of <code>KTable</code>s |
| where each table contains records with unmodified keys and values with type <code>T</code> |
| that represent the latest (rolling) aggregate for each key within that window</dd></dl> |
| </li> |
| </ul> |
| <a name="aggregateByKey(org.apache.kafka.streams.kstream.Initializer, org.apache.kafka.streams.kstream.Aggregator, org.apache.kafka.streams.kstream.Windows)"> |
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| <pre><T,W extends <a href="../../../../../org/apache/kafka/streams/kstream/Window.html" title="class in org.apache.kafka.streams.kstream">Window</a>> <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/Windowed.html" title="class in org.apache.kafka.streams.kstream">Windowed</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>>,T> aggregateByKey(<a href="../../../../../org/apache/kafka/streams/kstream/Initializer.html" title="interface in org.apache.kafka.streams.kstream">Initializer</a><T> initializer, |
| <a href="../../../../../org/apache/kafka/streams/kstream/Aggregator.html" title="interface in org.apache.kafka.streams.kstream">Aggregator</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,T> aggregator, |
| <a href="../../../../../org/apache/kafka/streams/kstream/Windows.html" title="class in org.apache.kafka.streams.kstream">Windows</a><W> windows)</pre> |
| <div class="block">Aggregate values of this stream by key on a window basis into a new instance of windowed <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> |
| with default serializers and deserializers.</div> |
| <dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>T</code> - the value type of the resulted <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a></dd><dt><span class="strong">Parameters:</span></dt><dd><code>initializer</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/Initializer.html" title="interface in org.apache.kafka.streams.kstream"><code>Initializer</code></a></dd><dd><code>aggregator</code> - the instance of <a href="../../../../../org/apache/kafka/streams/kstream/Aggregator.html" title="interface in org.apache.kafka.streams.kstream"><code>Aggregator</code></a></dd><dd><code>windows</code> - the specification of the aggregation <a href="../../../../../org/apache/kafka/streams/kstream/Windows.html" title="class in org.apache.kafka.streams.kstream"><code>Windows</code></a></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a windowed <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> which can be treated as a list of <code>KTable</code>s |
| where each table contains records with unmodified keys and values with type <code>T</code> |
| that represent the latest (rolling) aggregate for each key within that window</dd></dl> |
| </li> |
| </ul> |
| <a name="aggregateByKey(org.apache.kafka.streams.kstream.Initializer, org.apache.kafka.streams.kstream.Aggregator, org.apache.kafka.common.serialization.Serde, org.apache.kafka.common.serialization.Serde, java.lang.String)"> |
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| <pre><T> <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,T> aggregateByKey(<a href="../../../../../org/apache/kafka/streams/kstream/Initializer.html" title="interface in org.apache.kafka.streams.kstream">Initializer</a><T> initializer, |
| <a href="../../../../../org/apache/kafka/streams/kstream/Aggregator.html" title="interface in org.apache.kafka.streams.kstream">Aggregator</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,T> aggregator, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><T> aggValueSerde, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</pre> |
| <div class="block">Aggregate values of this stream by key into a new instance of ever-updating <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>.</div> |
| <dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>T</code> - the value type of the resulted <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a></dd><dt><span class="strong">Parameters:</span></dt><dd><code>initializer</code> - the class of <a href="../../../../../org/apache/kafka/streams/kstream/Initializer.html" title="interface in org.apache.kafka.streams.kstream"><code>Initializer</code></a></dd><dd><code>aggregator</code> - the class of <a href="../../../../../org/apache/kafka/streams/kstream/Aggregator.html" title="interface in org.apache.kafka.streams.kstream"><code>Aggregator</code></a></dd><dd><code>keySerde</code> - key serdes for materializing the aggregated table, |
| if not specified the default serdes defined in the configs will be used</dd><dd><code>aggValueSerde</code> - aggregate value serdes for materializing the aggregated table, |
| if not specified the default serdes defined in the configs will be used</dd><dd><code>name</code> - the name of the resulted <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> that contains records with unmodified keys and values (of different type) that represent the latest (rolling) aggregate for each key</dd></dl> |
| </li> |
| </ul> |
| <a name="aggregateByKey(org.apache.kafka.streams.kstream.Initializer, org.apache.kafka.streams.kstream.Aggregator, java.lang.String)"> |
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| <pre><T> <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,T> aggregateByKey(<a href="../../../../../org/apache/kafka/streams/kstream/Initializer.html" title="interface in org.apache.kafka.streams.kstream">Initializer</a><T> initializer, |
| <a href="../../../../../org/apache/kafka/streams/kstream/Aggregator.html" title="interface in org.apache.kafka.streams.kstream">Aggregator</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">V</a>,T> aggregator, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</pre> |
| <div class="block">Aggregate values of this stream by key into a new instance of ever-updating <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> |
| with default serializers and deserializers.</div> |
| <dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>T</code> - the value type of the resulted <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a></dd><dt><span class="strong">Parameters:</span></dt><dd><code>initializer</code> - the class of <a href="../../../../../org/apache/kafka/streams/kstream/Initializer.html" title="interface in org.apache.kafka.streams.kstream"><code>Initializer</code></a></dd><dd><code>aggregator</code> - the class of <a href="../../../../../org/apache/kafka/streams/kstream/Aggregator.html" title="interface in org.apache.kafka.streams.kstream"><code>Aggregator</code></a></dd><dd><code>name</code> - the name of the resulted <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> that contains records with unmodified keys and values (of different type) that represent the latest (rolling) aggregate for each key</dd></dl> |
| </li> |
| </ul> |
| <a name="countByKey(org.apache.kafka.streams.kstream.Windows, org.apache.kafka.common.serialization.Serde)"> |
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| <pre><W extends <a href="../../../../../org/apache/kafka/streams/kstream/Window.html" title="class in org.apache.kafka.streams.kstream">Window</a>> <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/Windowed.html" title="class in org.apache.kafka.streams.kstream">Windowed</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>> countByKey(<a href="../../../../../org/apache/kafka/streams/kstream/Windows.html" title="class in org.apache.kafka.streams.kstream">Windows</a><W> windows, |
| <a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde)</pre> |
| <div class="block">Count number of records of this stream by key on a window basis into a new instance of windowed <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>windows</code> - the specification of the aggregation <a href="../../../../../org/apache/kafka/streams/kstream/Windows.html" title="class in org.apache.kafka.streams.kstream"><code>Windows</code></a></dd><dd><code>keySerde</code> - key serdes for materializing the counting table, |
| if not specified the default serdes defined in the configs will be used</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a windowed <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> which can be treated as a list of <code>KTable</code>s |
| where each table contains records with unmodified keys and values |
| that represent the latest (rolling) count (i.e., number of records) for each key within that window</dd></dl> |
| </li> |
| </ul> |
| <a name="countByKey(org.apache.kafka.streams.kstream.Windows)"> |
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| <pre><W extends <a href="../../../../../org/apache/kafka/streams/kstream/Window.html" title="class in org.apache.kafka.streams.kstream">Window</a>> <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/Windowed.html" title="class in org.apache.kafka.streams.kstream">Windowed</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>> countByKey(<a href="../../../../../org/apache/kafka/streams/kstream/Windows.html" title="class in org.apache.kafka.streams.kstream">Windows</a><W> windows)</pre> |
| <div class="block">Count number of records of this stream by key on a window basis into a new instance of windowed <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> |
| with default serializers and deserializers.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>windows</code> - the specification of the aggregation <a href="../../../../../org/apache/kafka/streams/kstream/Windows.html" title="class in org.apache.kafka.streams.kstream"><code>Windows</code></a></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a windowed <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> which can be treated as a list of <code>KTable</code>s |
| where each table contains records with unmodified keys and values |
| that represent the latest (rolling) count (i.e., number of records) for each key within that window</dd></dl> |
| </li> |
| </ul> |
| <a name="countByKey(org.apache.kafka.common.serialization.Serde, java.lang.String)"> |
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| <h4>countByKey</h4> |
| <pre><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>> countByKey(<a href="../../../../../org/apache/kafka/common/serialization/Serde.html" title="interface in org.apache.kafka.common.serialization">Serde</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>> keySerde, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</pre> |
| <div class="block">Count number of records of this stream by key into a new instance of ever-updating <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a>.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>keySerde</code> - key serdes for materializing the counting table, |
| if not specified the default serdes defined in the configs will be used</dd><dd><code>name</code> - the name of the resulted <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> that contains records with unmodified keys and values that represent the latest (rolling) count (i.e., number of records) for each key</dd></dl> |
| </li> |
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| <pre><a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream">KTable</a><<a href="../../../../../org/apache/kafka/streams/kstream/KStream.html" title="type parameter in KStream">K</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>> countByKey(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</pre> |
| <div class="block">Count number of records of this stream by key into a new instance of ever-updating <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> |
| with default serializers and deserializers.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>name</code> - the name of the resulted <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a></dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a <a href="../../../../../org/apache/kafka/streams/kstream/KTable.html" title="interface in org.apache.kafka.streams.kstream"><code>KTable</code></a> that contains records with unmodified keys and values that represent the latest (rolling) count (i.e., number of records) for each key</dd></dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
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