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| <div class="subTitle">org.apache.kafka.streams.state</div> |
| <h2 title="Class StateSerdes" class="title">Class StateSerdes<K,V></h2> |
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| <li>org.apache.kafka.streams.state.StateSerdes<K,V></li> |
| </ul> |
| </li> |
| </ul> |
| <div class="description"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>K</code> - key type of serde</dd><dd><code>V</code> - value type of serde</dd></dl> |
| <hr> |
| <br> |
| <pre>public final class <span class="strong">StateSerdes<K,V></span> |
| extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block">Factory for creating serializers / deserializers for state stores in Kafka Streams.</div> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
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| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colOne" scope="col">Constructor and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><strong><a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html#StateSerdes(java.lang.String,%20org.apache.kafka.common.serialization.Serde,%20org.apache.kafka.common.serialization.Serde)">StateSerdes</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> stateName, |
| <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/state/StateSerdes.html" title="type parameter in StateSerdes">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/state/StateSerdes.html" title="type parameter in StateSerdes">V</a>> valueSerde)</code> |
| <div class="block">Create a context for serialization using the specified serializers and deserializers which |
| <em>must</em> match the key and value types used as parameters for this object; the state changelog topic |
| is provided to bind this serde factory to, so that future calls for serialize / deserialize do not |
| need to provide the topic name any more.</div> |
| </td> |
| </tr> |
| </table> |
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| <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><a href="../../../../../org/apache/kafka/common/serialization/Deserializer.html" title="interface in org.apache.kafka.common.serialization">Deserializer</a><<a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html" title="type parameter in StateSerdes">K</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html#keyDeserializer()">keyDeserializer</a></strong>()</code> |
| <div class="block">Return the key deserializer.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html" title="type parameter in StateSerdes">K</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html#keyFrom(byte[])">keyFrom</a></strong>(byte[] rawKey)</code> |
| <div class="block">Deserialize the key from raw bytes.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><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/state/StateSerdes.html" title="type parameter in StateSerdes">K</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html#keySerde()">keySerde</a></strong>()</code> |
| <div class="block">Return the key serde.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/kafka/common/serialization/Serializer.html" title="interface in org.apache.kafka.common.serialization">Serializer</a><<a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html" title="type parameter in StateSerdes">K</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html#keySerializer()">keySerializer</a></strong>()</code> |
| <div class="block">Return the key serializer.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>byte[]</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html#rawKey(K)">rawKey</a></strong>(<a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html" title="type parameter in StateSerdes">K</a> key)</code> |
| <div class="block">Serialize the given key.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>byte[]</code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html#rawValue(V)">rawValue</a></strong>(<a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html" title="type parameter in StateSerdes">V</a> value)</code> |
| <div class="block">Serialize the given value.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><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></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html#stateName()">stateName</a></strong>()</code> |
| <div class="block">Return the name of the state.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/kafka/common/serialization/Deserializer.html" title="interface in org.apache.kafka.common.serialization">Deserializer</a><<a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html" title="type parameter in StateSerdes">V</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html#valueDeserializer()">valueDeserializer</a></strong>()</code> |
| <div class="block">Return the value deserializer.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html" title="type parameter in StateSerdes">V</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html#valueFrom(byte[])">valueFrom</a></strong>(byte[] rawValue)</code> |
| <div class="block">Deserialize the value from raw bytes.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><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/state/StateSerdes.html" title="type parameter in StateSerdes">V</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html#valueSerde()">valueSerde</a></strong>()</code> |
| <div class="block">Return the value serde.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/kafka/common/serialization/Serializer.html" title="interface in org.apache.kafka.common.serialization">Serializer</a><<a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html" title="type parameter in StateSerdes">V</a>></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html#valueSerializer()">valueSerializer</a></strong>()</code> |
| <div class="block">Return the value serializer.</div> |
| </td> |
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| <td class="colFirst"><code>static <K,V> <a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html" title="class in org.apache.kafka.streams.state">StateSerdes</a><K,V></code></td> |
| <td class="colLast"><code><strong><a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html#withBuiltinTypes(java.lang.String,%20java.lang.Class,%20java.lang.Class)">withBuiltinTypes</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> stateName, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a><K> keyClass, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a><V> valueClass)</code> |
| <div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html" title="class in org.apache.kafka.streams.state"><code>StateSerdes</code></a> for the given state name and key-/value-type classes.</div> |
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| <h3>Constructor Detail</h3> |
| <a name="StateSerdes(java.lang.String, org.apache.kafka.common.serialization.Serde, org.apache.kafka.common.serialization.Serde)"> |
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| <h4>StateSerdes</h4> |
| <pre>public StateSerdes(<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> stateName, |
| <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/state/StateSerdes.html" title="type parameter in StateSerdes">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/state/StateSerdes.html" title="type parameter in StateSerdes">V</a>> valueSerde)</pre> |
| <div class="block">Create a context for serialization using the specified serializers and deserializers which |
| <em>must</em> match the key and value types used as parameters for this object; the state changelog topic |
| is provided to bind this serde factory to, so that future calls for serialize / deserialize do not |
| need to provide the topic name any more.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>stateName</code> - the name of the state</dd><dd><code>keySerde</code> - the serde for keys; cannot be null</dd><dd><code>valueSerde</code> - the serde for values; cannot be null</dd> |
| <dt><span class="strong">Throws:</span></dt> |
| <dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if key or value serde is null</dd></dl> |
| </li> |
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| </li> |
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| <h4>withBuiltinTypes</h4> |
| <pre>public static <K,V> <a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html" title="class in org.apache.kafka.streams.state">StateSerdes</a><K,V> withBuiltinTypes(<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> stateName, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a><K> keyClass, |
| <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a><V> valueClass)</pre> |
| <div class="block">Create a new instance of <a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html" title="class in org.apache.kafka.streams.state"><code>StateSerdes</code></a> for the given state name and key-/value-type classes.</div> |
| <dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>K</code> - the key type</dd><dd><code>V</code> - the value type</dd><dt><span class="strong">Parameters:</span></dt><dd><code>stateName</code> - the name of the state</dd><dd><code>keyClass</code> - the class of the key type</dd><dd><code>valueClass</code> - the class of the value type</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>a new instance of <a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html" title="class in org.apache.kafka.streams.state"><code>StateSerdes</code></a></dd></dl> |
| </li> |
| </ul> |
| <a name="keySerde()"> |
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| <h4>keySerde</h4> |
| <pre>public <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/state/StateSerdes.html" title="type parameter in StateSerdes">K</a>> keySerde()</pre> |
| <div class="block">Return the key serde.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>the key serde</dd></dl> |
| </li> |
| </ul> |
| <a name="valueSerde()"> |
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| <h4>valueSerde</h4> |
| <pre>public <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/state/StateSerdes.html" title="type parameter in StateSerdes">V</a>> valueSerde()</pre> |
| <div class="block">Return the value serde.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>the value serde</dd></dl> |
| </li> |
| </ul> |
| <a name="keyDeserializer()"> |
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| <h4>keyDeserializer</h4> |
| <pre>public <a href="../../../../../org/apache/kafka/common/serialization/Deserializer.html" title="interface in org.apache.kafka.common.serialization">Deserializer</a><<a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html" title="type parameter in StateSerdes">K</a>> keyDeserializer()</pre> |
| <div class="block">Return the key deserializer.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>the key deserializer</dd></dl> |
| </li> |
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| <h4>keySerializer</h4> |
| <pre>public <a href="../../../../../org/apache/kafka/common/serialization/Serializer.html" title="interface in org.apache.kafka.common.serialization">Serializer</a><<a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html" title="type parameter in StateSerdes">K</a>> keySerializer()</pre> |
| <div class="block">Return the key serializer.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>the key serializer</dd></dl> |
| </li> |
| </ul> |
| <a name="valueDeserializer()"> |
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| <h4>valueDeserializer</h4> |
| <pre>public <a href="../../../../../org/apache/kafka/common/serialization/Deserializer.html" title="interface in org.apache.kafka.common.serialization">Deserializer</a><<a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html" title="type parameter in StateSerdes">V</a>> valueDeserializer()</pre> |
| <div class="block">Return the value deserializer.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>the value deserializer</dd></dl> |
| </li> |
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| <h4>valueSerializer</h4> |
| <pre>public <a href="../../../../../org/apache/kafka/common/serialization/Serializer.html" title="interface in org.apache.kafka.common.serialization">Serializer</a><<a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html" title="type parameter in StateSerdes">V</a>> valueSerializer()</pre> |
| <div class="block">Return the value serializer.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>the value serializer</dd></dl> |
| </li> |
| </ul> |
| <a name="stateName()"> |
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| <h4>stateName</h4> |
| <pre>public <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> stateName()</pre> |
| <div class="block">Return the name of the state.</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>the name of the state</dd></dl> |
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| <a name="keyFrom(byte[])"> |
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| <h4>keyFrom</h4> |
| <pre>public <a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html" title="type parameter in StateSerdes">K</a> keyFrom(byte[] rawKey)</pre> |
| <div class="block">Deserialize the key from raw bytes.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>rawKey</code> - the key as raw bytes</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>the key as typed object</dd></dl> |
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| <a name="valueFrom(byte[])"> |
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| <h4>valueFrom</h4> |
| <pre>public <a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html" title="type parameter in StateSerdes">V</a> valueFrom(byte[] rawValue)</pre> |
| <div class="block">Deserialize the value from raw bytes.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>rawValue</code> - the value as raw bytes</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>the value as typed object</dd></dl> |
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| <a name="rawKey(java.lang.Object)"> |
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| <h4>rawKey</h4> |
| <pre>public byte[] rawKey(<a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html" title="type parameter in StateSerdes">K</a> key)</pre> |
| <div class="block">Serialize the given key.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>key</code> - the key to be serialized</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>the serialized key</dd></dl> |
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| <h4>rawValue</h4> |
| <pre>public byte[] rawValue(<a href="../../../../../org/apache/kafka/streams/state/StateSerdes.html" title="type parameter in StateSerdes">V</a> value)</pre> |
| <div class="block">Serialize the given value.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>value</code> - the value to be serialized</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>the serialized value</dd></dl> |
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