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| <div class="subTitle">org.apache.beam.sdk.io.kafka</div> |
| <h2 title="Class KafkaIO.ReadSourceDescriptors" class="title">Class KafkaIO.ReadSourceDescriptors<K,V></h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">org.apache.beam.sdk.transforms.PTransform</a><<a href="../../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaSourceDescriptor.html" title="class in org.apache.beam.sdk.io.kafka">KafkaSourceDescriptor</a>>,<a href="../../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaRecord.html" title="class in org.apache.beam.sdk.io.kafka">KafkaRecord</a><K,V>>></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.beam.sdk.io.kafka.KafkaIO.ReadSourceDescriptors<K,V></li> |
| </ul> |
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| <dt>All Implemented Interfaces:</dt> |
| <dd>java.io.Serializable, <a href="../../../../../../org/apache/beam/sdk/transforms/display/HasDisplayData.html" title="interface in org.apache.beam.sdk.transforms.display">HasDisplayData</a></dd> |
| </dl> |
| <dl> |
| <dt>Enclosing class:</dt> |
| <dd><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre><a href="../../../../../../org/apache/beam/sdk/annotations/Experimental.html" title="annotation in org.apache.beam.sdk.annotations">@Experimental</a>(<a href="../../../../../../org/apache/beam/sdk/annotations/Experimental.html#value--">value</a>=<a href="../../../../../../org/apache/beam/sdk/annotations/Experimental.Kind.html#PORTABILITY">PORTABILITY</a>) |
| public abstract static class <span class="typeNameLabel">KafkaIO.ReadSourceDescriptors<K,V></span> |
| extends <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">PTransform</a><<a href="../../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaSourceDescriptor.html" title="class in org.apache.beam.sdk.io.kafka">KafkaSourceDescriptor</a>>,<a href="../../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaRecord.html" title="class in org.apache.beam.sdk.io.kafka">KafkaRecord</a><K,V>>></pre> |
| <div class="block">A <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms"><code>PTransform</code></a> to read from <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaSourceDescriptor.html" title="class in org.apache.beam.sdk.io.kafka"><code>KafkaSourceDescriptor</code></a>. See <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.html" title="class in org.apache.beam.sdk.io.kafka"><code>KafkaIO</code></a> for more |
| information on usage and configuration. See <code>ReadFromKafkaDoFn</code> for more implementation |
| details. |
| |
| <p>During expansion, if <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#isCommitOffsetEnabled--"><code>isCommitOffsetEnabled()</code></a> is <code>true</code>, |
| the transform will expand to: |
| |
| <pre><code> |
| PCollection<KafkaSourceDescriptor> --> ParDo(ReadFromKafkaDoFn<KafkaSourceDescriptor, KV<KafkaSourceDescriptor, KafkaRecord>>) --> Reshuffle() --> Map(output KafkaRecord) |
| | |
| --> KafkaCommitOffset |
| </code></pre> |
| |
| . Note that this expansion is not supported when running with x-lang on Dataflow.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../serialized-form.html#org.apache.beam.sdk.io.kafka.KafkaIO.ReadSourceDescriptors">Serialized Form</a></dd> |
| </dl> |
| </li> |
| </ul> |
| </div> |
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| <li class="blockList"> |
| <!-- =========== FIELD SUMMARY =========== --> |
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| <!-- --> |
| </a> |
| <h3>Fields inherited from class org.apache.beam.sdk.transforms.<a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">PTransform</a></h3> |
| <code><a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html#name">name</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html#resourceHints">resourceHints</a></code></li> |
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| <h3>Constructor Summary</h3> |
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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><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#ReadSourceDescriptors--">ReadSourceDescriptors</a></span>()</code> </td> |
| </tr> |
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| </li> |
| </ul> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.summary"> |
| <!-- --> |
| </a> |
| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#commitOffsets--">commitOffsets</a></span>()</code> |
| <div class="block">Enable committing record offset.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaRecord.html" title="class in org.apache.beam.sdk.io.kafka">KafkaRecord</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#expand-org.apache.beam.sdk.values.PCollection-">expand</a></span>(<a href="../../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaSourceDescriptor.html" title="class in org.apache.beam.sdk.io.kafka">KafkaSourceDescriptor</a>> input)</code> |
| <div class="block">Override this method to specify how this <code>PTransform</code> should be expanded on the given |
| <code>InputT</code>.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static <K,V> <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><K,V></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#read--">read</a></span>()</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withBootstrapServers-java.lang.String-">withBootstrapServers</a></span>(java.lang.String bootstrapServers)</code> |
| <div class="block">Sets the bootstrap servers to use for the Kafka consumer if unspecified via |
| KafkaSourceDescriptor#getBootStrapServers()}.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withCheckStopReadingFn-org.apache.beam.sdk.transforms.SerializableFunction-">withCheckStopReadingFn</a></span>(<a href="https://static.javadoc.io/org.checkerframework/checker-qual/3.27.0/org/checkerframework/checker/nullness/qual/Nullable.html?is-external=true" title="class or interface in org.checkerframework.checker.nullness.qual">@Nullable</a> <a href="../../../../../../org/apache/beam/sdk/transforms/SerializableFunction.html" title="interface in org.apache.beam.sdk.transforms">SerializableFunction</a><<a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/common/TopicPartition.html?is-external=true" title="class or interface in org.apache.kafka.common">TopicPartition</a>,java.lang.Boolean> checkStopReadingFn)</code> |
| <div class="block">A custom <a href="../../../../../../org/apache/beam/sdk/transforms/SerializableFunction.html" title="interface in org.apache.beam.sdk.transforms"><code>SerializableFunction</code></a> that determines whether the <code>ReadFromKafkaDoFn</code> |
| should stop reading from the given <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/common/TopicPartition.html?is-external=true" title="class or interface in org.apache.kafka.common"><code>TopicPartition</code></a>.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withConsumerConfigOverrides-java.util.Map-">withConsumerConfigOverrides</a></span>(java.util.Map<java.lang.String,java.lang.Object> consumerConfig)</code> |
| <div class="block">Replaces the configuration for the main consumer.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withConsumerConfigUpdates-java.util.Map-">withConsumerConfigUpdates</a></span>(java.util.Map<java.lang.String,java.lang.Object> configUpdates)</code> |
| <div class="block">Updates configuration for the main consumer.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withConsumerFactoryFn-org.apache.beam.sdk.transforms.SerializableFunction-">withConsumerFactoryFn</a></span>(<a href="../../../../../../org/apache/beam/sdk/transforms/SerializableFunction.html" title="interface in org.apache.beam.sdk.transforms">SerializableFunction</a><java.util.Map<java.lang.String,java.lang.Object>,<a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/clients/consumer/Consumer.html?is-external=true" title="class or interface in org.apache.kafka.clients.consumer">Consumer</a><byte[],byte[]>> consumerFactoryFn)</code> |
| <div class="block">A factory to create Kafka <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/clients/consumer/Consumer.html?is-external=true" title="class or interface in org.apache.kafka.clients.consumer"><code>Consumer</code></a> from consumer configuration.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withCreateTime--">withCreateTime</a></span>()</code> |
| <div class="block">Use the creation time of <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaRecord.html" title="class in org.apache.beam.sdk.io.kafka"><code>KafkaRecord</code></a> as the output timestamp.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withCreatWatermarkEstimatorFn-org.apache.beam.sdk.transforms.SerializableFunction-">withCreatWatermarkEstimatorFn</a></span>(<a href="../../../../../../org/apache/beam/sdk/transforms/SerializableFunction.html" title="interface in org.apache.beam.sdk.transforms">SerializableFunction</a><<a href="https://static.javadoc.io/joda-time/joda-time/2.10.10/org/joda/time/Instant.html?is-external=true" title="class or interface in org.joda.time">Instant</a>,<a href="../../../../../../org/apache/beam/sdk/transforms/splittabledofn/WatermarkEstimator.html" title="interface in org.apache.beam.sdk.transforms.splittabledofn">WatermarkEstimator</a><<a href="https://static.javadoc.io/joda-time/joda-time/2.10.10/org/joda/time/Instant.html?is-external=true" title="class or interface in org.joda.time">Instant</a>>> fn)</code> |
| <div class="block">A function to create a <a href="../../../../../../org/apache/beam/sdk/transforms/splittabledofn/WatermarkEstimator.html" title="interface in org.apache.beam.sdk.transforms.splittabledofn"><code>WatermarkEstimator</code></a>.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withExtractOutputTimestampFn-org.apache.beam.sdk.transforms.SerializableFunction-">withExtractOutputTimestampFn</a></span>(<a href="../../../../../../org/apache/beam/sdk/transforms/SerializableFunction.html" title="interface in org.apache.beam.sdk.transforms">SerializableFunction</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaRecord.html" title="class in org.apache.beam.sdk.io.kafka">KafkaRecord</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>>,<a href="https://static.javadoc.io/joda-time/joda-time/2.10.10/org/joda/time/Instant.html?is-external=true" title="class or interface in org.joda.time">Instant</a>> fn)</code> |
| <div class="block">A function to calculate output timestamp for a given <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaRecord.html" title="class in org.apache.beam.sdk.io.kafka"><code>KafkaRecord</code></a>.</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withKeyDeserializer-java.lang.Class-">withKeyDeserializer</a></span>(java.lang.Class<? extends <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/common/serialization/Deserializer.html?is-external=true" title="class or interface in org.apache.kafka.common.serialization">Deserializer</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>>> keyDeserializer)</code> |
| <div class="block">Sets a Kafka <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/common/serialization/Deserializer.html?is-external=true" title="class or interface in org.apache.kafka.common.serialization"><code>Deserializer</code></a> to interpret key bytes read from Kafka.</div> |
| </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withKeyDeserializerAndCoder-java.lang.Class-org.apache.beam.sdk.coders.Coder-">withKeyDeserializerAndCoder</a></span>(java.lang.Class<? extends <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/common/serialization/Deserializer.html?is-external=true" title="class or interface in org.apache.kafka.common.serialization">Deserializer</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>>> keyDeserializer, |
| <a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>> keyCoder)</code> |
| <div class="block">Sets a Kafka <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/common/serialization/Deserializer.html?is-external=true" title="class or interface in org.apache.kafka.common.serialization"><code>Deserializer</code></a> for interpreting key bytes read from Kafka along with a |
| <a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders"><code>Coder</code></a> for helping the Beam runner materialize key objects at runtime if necessary.</div> |
| </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withKeyDeserializerProvider-org.apache.beam.sdk.io.kafka.DeserializerProvider-">withKeyDeserializerProvider</a></span>(<a href="https://static.javadoc.io/org.checkerframework/checker-qual/3.27.0/org/checkerframework/checker/nullness/qual/Nullable.html?is-external=true" title="class or interface in org.checkerframework.checker.nullness.qual">@Nullable</a> <a href="../../../../../../org/apache/beam/sdk/io/kafka/DeserializerProvider.html" title="interface in org.apache.beam.sdk.io.kafka">DeserializerProvider</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>> deserializerProvider)</code> </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withLogAppendTime--">withLogAppendTime</a></span>()</code> |
| <div class="block">Use the log append time as the output timestamp.</div> |
| </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withManualWatermarkEstimator--">withManualWatermarkEstimator</a></span>()</code> |
| <div class="block">Use the <a href="../../../../../../org/apache/beam/sdk/transforms/splittabledofn/WatermarkEstimators.Manual.html" title="class in org.apache.beam.sdk.transforms.splittabledofn"><code>WatermarkEstimators.Manual</code></a> as the watermark estimator.</div> |
| </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withMonotonicallyIncreasingWatermarkEstimator--">withMonotonicallyIncreasingWatermarkEstimator</a></span>()</code> |
| <div class="block">Use the <a href="../../../../../../org/apache/beam/sdk/transforms/splittabledofn/WatermarkEstimators.MonotonicallyIncreasing.html" title="class in org.apache.beam.sdk.transforms.splittabledofn"><code>WatermarkEstimators.MonotonicallyIncreasing</code></a> as the watermark estimator.</div> |
| </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withOffsetConsumerConfigOverrides-java.util.Map-">withOffsetConsumerConfigOverrides</a></span>(<a href="https://static.javadoc.io/org.checkerframework/checker-qual/3.27.0/org/checkerframework/checker/nullness/qual/Nullable.html?is-external=true" title="class or interface in org.checkerframework.checker.nullness.qual">@Nullable</a> java.util.Map<java.lang.String,java.lang.Object> offsetConsumerConfig)</code> |
| <div class="block">Set additional configuration for the offset consumer.</div> |
| </td> |
| </tr> |
| <tr id="i18" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withProcessingTime--">withProcessingTime</a></span>()</code> |
| <div class="block">Use the processing time as the output timestamp.</div> |
| </td> |
| </tr> |
| <tr id="i19" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withReadCommitted--">withReadCommitted</a></span>()</code> |
| <div class="block">Sets "isolation_level" to "read_committed" in Kafka consumer configuration.</div> |
| </td> |
| </tr> |
| <tr id="i20" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withValueDeserializer-java.lang.Class-">withValueDeserializer</a></span>(java.lang.Class<? extends <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/common/serialization/Deserializer.html?is-external=true" title="class or interface in org.apache.kafka.common.serialization">Deserializer</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>>> valueDeserializer)</code> |
| <div class="block">Sets a Kafka <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/common/serialization/Deserializer.html?is-external=true" title="class or interface in org.apache.kafka.common.serialization"><code>Deserializer</code></a> to interpret value bytes read from Kafka.</div> |
| </td> |
| </tr> |
| <tr id="i21" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withValueDeserializerAndCoder-java.lang.Class-org.apache.beam.sdk.coders.Coder-">withValueDeserializerAndCoder</a></span>(java.lang.Class<? extends <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/common/serialization/Deserializer.html?is-external=true" title="class or interface in org.apache.kafka.common.serialization">Deserializer</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>>> valueDeserializer, |
| <a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> valueCoder)</code> |
| <div class="block">Sets a Kafka <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/common/serialization/Deserializer.html?is-external=true" title="class or interface in org.apache.kafka.common.serialization"><code>Deserializer</code></a> for interpreting value bytes read from Kafka along with a |
| <a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders"><code>Coder</code></a> for helping the Beam runner materialize value objects at runtime if necessary.</div> |
| </td> |
| </tr> |
| <tr id="i22" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withValueDeserializerProvider-org.apache.beam.sdk.io.kafka.DeserializerProvider-">withValueDeserializerProvider</a></span>(<a href="https://static.javadoc.io/org.checkerframework/checker-qual/3.27.0/org/checkerframework/checker/nullness/qual/Nullable.html?is-external=true" title="class or interface in org.checkerframework.checker.nullness.qual">@Nullable</a> <a href="../../../../../../org/apache/beam/sdk/io/kafka/DeserializerProvider.html" title="interface in org.apache.beam.sdk.io.kafka">DeserializerProvider</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> deserializerProvider)</code> </td> |
| </tr> |
| <tr id="i23" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withWallTimeWatermarkEstimator--">withWallTimeWatermarkEstimator</a></span>()</code> |
| <div class="block">Use the <a href="../../../../../../org/apache/beam/sdk/transforms/splittabledofn/WatermarkEstimators.WallTime.html" title="class in org.apache.beam.sdk.transforms.splittabledofn"><code>WatermarkEstimators.WallTime</code></a> as the watermark estimator.</div> |
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| <h3>Methods inherited from class org.apache.beam.sdk.transforms.<a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">PTransform</a></h3> |
| <code><a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html#compose-org.apache.beam.sdk.transforms.SerializableFunction-">compose</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html#compose-java.lang.String-org.apache.beam.sdk.transforms.SerializableFunction-">compose</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html#getAdditionalInputs--">getAdditionalInputs</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html#getDefaultOutputCoder--">getDefaultOutputCoder</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html#getDefaultOutputCoder-InputT-">getDefaultOutputCoder</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html#getDefaultOutputCoder-InputT-org.apache.beam.sdk.values.PCollection-">getDefaultOutputCoder</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html#getKindString--">getKindString</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html#getName--">getName</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html#getResourceHints--">getResourceHints</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html#populateDisplayData-org.apache.beam.sdk.transforms.display.DisplayData.Builder-">populateDisplayData</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html#setResourceHints-org.apache.beam.sdk.transforms.resourcehints.ResourceHints-">setResourceHints</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html#toString--">toString</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html#validate-org.apache.beam.sdk.options.PipelineOptions-">validate</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html#validate-org.apache.beam.sdk.options.PipelineOptions-java.util.Map-java.util.Map-">validate</a></code></li> |
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| </a> |
| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</code></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
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| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
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| <h3>Constructor Detail</h3> |
| <a name="ReadSourceDescriptors--"> |
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| <h4>ReadSourceDescriptors</h4> |
| <pre>public ReadSourceDescriptors()</pre> |
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| <pre>public static <K,V> <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><K,V> read()</pre> |
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| <a name="withBootstrapServers-java.lang.String-"> |
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| <h4>withBootstrapServers</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> withBootstrapServers(java.lang.String bootstrapServers)</pre> |
| <div class="block">Sets the bootstrap servers to use for the Kafka consumer if unspecified via |
| KafkaSourceDescriptor#getBootStrapServers()}.</div> |
| </li> |
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| <h4>withKeyDeserializerProvider</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> withKeyDeserializerProvider(<a href="https://static.javadoc.io/org.checkerframework/checker-qual/3.27.0/org/checkerframework/checker/nullness/qual/Nullable.html?is-external=true" title="class or interface in org.checkerframework.checker.nullness.qual">@Nullable</a> <a href="../../../../../../org/apache/beam/sdk/io/kafka/DeserializerProvider.html" title="interface in org.apache.beam.sdk.io.kafka">DeserializerProvider</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>> deserializerProvider)</pre> |
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| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> withValueDeserializerProvider(<a href="https://static.javadoc.io/org.checkerframework/checker-qual/3.27.0/org/checkerframework/checker/nullness/qual/Nullable.html?is-external=true" title="class or interface in org.checkerframework.checker.nullness.qual">@Nullable</a> <a href="../../../../../../org/apache/beam/sdk/io/kafka/DeserializerProvider.html" title="interface in org.apache.beam.sdk.io.kafka">DeserializerProvider</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> deserializerProvider)</pre> |
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| <h4>withKeyDeserializer</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> withKeyDeserializer(java.lang.Class<? extends <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/common/serialization/Deserializer.html?is-external=true" title="class or interface in org.apache.kafka.common.serialization">Deserializer</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>>> keyDeserializer)</pre> |
| <div class="block">Sets a Kafka <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/common/serialization/Deserializer.html?is-external=true" title="class or interface in org.apache.kafka.common.serialization"><code>Deserializer</code></a> to interpret key bytes read from Kafka. |
| |
| <p>In addition, Beam also needs a <a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders"><code>Coder</code></a> to serialize and deserialize key objects at |
| runtime. KafkaIO tries to infer a coder for the key based on the <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/common/serialization/Deserializer.html?is-external=true" title="class or interface in org.apache.kafka.common.serialization"><code>Deserializer</code></a> class, |
| however in case that fails, you can use <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withKeyDeserializerAndCoder-java.lang.Class-org.apache.beam.sdk.coders.Coder-"><code>withKeyDeserializerAndCoder(Class, Coder)</code></a> to |
| provide the key coder explicitly.</div> |
| </li> |
| </ul> |
| <a name="withValueDeserializer-java.lang.Class-"> |
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| <h4>withValueDeserializer</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> withValueDeserializer(java.lang.Class<? extends <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/common/serialization/Deserializer.html?is-external=true" title="class or interface in org.apache.kafka.common.serialization">Deserializer</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>>> valueDeserializer)</pre> |
| <div class="block">Sets a Kafka <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/common/serialization/Deserializer.html?is-external=true" title="class or interface in org.apache.kafka.common.serialization"><code>Deserializer</code></a> to interpret value bytes read from Kafka. |
| |
| <p>In addition, Beam also needs a <a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders"><code>Coder</code></a> to serialize and deserialize value objects at |
| runtime. KafkaIO tries to infer a coder for the value based on the <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/common/serialization/Deserializer.html?is-external=true" title="class or interface in org.apache.kafka.common.serialization"><code>Deserializer</code></a> |
| class, however in case that fails, you can use <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withValueDeserializerAndCoder-java.lang.Class-org.apache.beam.sdk.coders.Coder-"><code>withValueDeserializerAndCoder(Class, |
| Coder)</code></a> to provide the value coder explicitly.</div> |
| </li> |
| </ul> |
| <a name="withKeyDeserializerAndCoder-java.lang.Class-org.apache.beam.sdk.coders.Coder-"> |
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| </a> |
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| <h4>withKeyDeserializerAndCoder</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> withKeyDeserializerAndCoder(java.lang.Class<? extends <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/common/serialization/Deserializer.html?is-external=true" title="class or interface in org.apache.kafka.common.serialization">Deserializer</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>>> keyDeserializer, |
| <a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>> keyCoder)</pre> |
| <div class="block">Sets a Kafka <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/common/serialization/Deserializer.html?is-external=true" title="class or interface in org.apache.kafka.common.serialization"><code>Deserializer</code></a> for interpreting key bytes read from Kafka along with a |
| <a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders"><code>Coder</code></a> for helping the Beam runner materialize key objects at runtime if necessary. |
| |
| <p>Use this method to override the coder inference performed within <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withKeyDeserializer-java.lang.Class-"><code>withKeyDeserializer(Class)</code></a>.</div> |
| </li> |
| </ul> |
| <a name="withValueDeserializerAndCoder-java.lang.Class-org.apache.beam.sdk.coders.Coder-"> |
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| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> withValueDeserializerAndCoder(java.lang.Class<? extends <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/common/serialization/Deserializer.html?is-external=true" title="class or interface in org.apache.kafka.common.serialization">Deserializer</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>>> valueDeserializer, |
| <a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> valueCoder)</pre> |
| <div class="block">Sets a Kafka <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/common/serialization/Deserializer.html?is-external=true" title="class or interface in org.apache.kafka.common.serialization"><code>Deserializer</code></a> for interpreting value bytes read from Kafka along with a |
| <a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders"><code>Coder</code></a> for helping the Beam runner materialize value objects at runtime if necessary. |
| |
| <p>Use this method to override the coder inference performed within <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withValueDeserializer-java.lang.Class-"><code>withValueDeserializer(Class)</code></a>.</div> |
| </li> |
| </ul> |
| <a name="withConsumerFactoryFn-org.apache.beam.sdk.transforms.SerializableFunction-"> |
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| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> withConsumerFactoryFn(<a href="../../../../../../org/apache/beam/sdk/transforms/SerializableFunction.html" title="interface in org.apache.beam.sdk.transforms">SerializableFunction</a><java.util.Map<java.lang.String,java.lang.Object>,<a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/clients/consumer/Consumer.html?is-external=true" title="class or interface in org.apache.kafka.clients.consumer">Consumer</a><byte[],byte[]>> consumerFactoryFn)</pre> |
| <div class="block">A factory to create Kafka <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/clients/consumer/Consumer.html?is-external=true" title="class or interface in org.apache.kafka.clients.consumer"><code>Consumer</code></a> from consumer configuration. This is useful for |
| supporting another version of Kafka consumer. Default is <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/clients/consumer/KafkaConsumer.html?is-external=true" title="class or interface in org.apache.kafka.clients.consumer"><code>KafkaConsumer</code></a>.</div> |
| </li> |
| </ul> |
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| <h4>withCheckStopReadingFn</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> withCheckStopReadingFn(<a href="https://static.javadoc.io/org.checkerframework/checker-qual/3.27.0/org/checkerframework/checker/nullness/qual/Nullable.html?is-external=true" title="class or interface in org.checkerframework.checker.nullness.qual">@Nullable</a> <a href="../../../../../../org/apache/beam/sdk/transforms/SerializableFunction.html" title="interface in org.apache.beam.sdk.transforms">SerializableFunction</a><<a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/common/TopicPartition.html?is-external=true" title="class or interface in org.apache.kafka.common">TopicPartition</a>,java.lang.Boolean> checkStopReadingFn)</pre> |
| <div class="block">A custom <a href="../../../../../../org/apache/beam/sdk/transforms/SerializableFunction.html" title="interface in org.apache.beam.sdk.transforms"><code>SerializableFunction</code></a> that determines whether the <code>ReadFromKafkaDoFn</code> |
| should stop reading from the given <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/common/TopicPartition.html?is-external=true" title="class or interface in org.apache.kafka.common"><code>TopicPartition</code></a>.</div> |
| </li> |
| </ul> |
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| <h4>withConsumerConfigUpdates</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> withConsumerConfigUpdates(java.util.Map<java.lang.String,java.lang.Object> configUpdates)</pre> |
| <div class="block">Updates configuration for the main consumer. This method merges updates from the provided map |
| with any prior updates using <code>KafkaIOUtils.DEFAULT_CONSUMER_PROPERTIES</code> as the starting |
| configuration. |
| |
| <p>In <code>ReadFromKafkaDoFn</code>, there're two consumers running in the backend: |
| |
| <ol> |
| <li>the main consumer which reads data from kafka. |
| <li>the secondary offset consumer which is used to estimate the backlog by fetching the |
| latest offset. |
| </ol> |
| |
| <p>See <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withConsumerConfigOverrides-java.util.Map-"><code>withConsumerConfigOverrides(java.util.Map<java.lang.String, java.lang.Object>)</code></a> for overriding the configuration instead of |
| updating it. |
| |
| <p>See <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withOffsetConsumerConfigOverrides-java.util.Map-"><code>withOffsetConsumerConfigOverrides(java.util.Map<java.lang.String, java.lang.Object>)</code></a> for configuring the secondary offset |
| consumer.</div> |
| </li> |
| </ul> |
| <a name="withExtractOutputTimestampFn-org.apache.beam.sdk.transforms.SerializableFunction-"> |
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| <h4>withExtractOutputTimestampFn</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> withExtractOutputTimestampFn(<a href="../../../../../../org/apache/beam/sdk/transforms/SerializableFunction.html" title="interface in org.apache.beam.sdk.transforms">SerializableFunction</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaRecord.html" title="class in org.apache.beam.sdk.io.kafka">KafkaRecord</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>>,<a href="https://static.javadoc.io/joda-time/joda-time/2.10.10/org/joda/time/Instant.html?is-external=true" title="class or interface in org.joda.time">Instant</a>> fn)</pre> |
| <div class="block">A function to calculate output timestamp for a given <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaRecord.html" title="class in org.apache.beam.sdk.io.kafka"><code>KafkaRecord</code></a>. The default value |
| is <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withProcessingTime--"><code>withProcessingTime()</code></a>.</div> |
| </li> |
| </ul> |
| <a name="withCreatWatermarkEstimatorFn-org.apache.beam.sdk.transforms.SerializableFunction-"> |
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| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> withCreatWatermarkEstimatorFn(<a href="../../../../../../org/apache/beam/sdk/transforms/SerializableFunction.html" title="interface in org.apache.beam.sdk.transforms">SerializableFunction</a><<a href="https://static.javadoc.io/joda-time/joda-time/2.10.10/org/joda/time/Instant.html?is-external=true" title="class or interface in org.joda.time">Instant</a>,<a href="../../../../../../org/apache/beam/sdk/transforms/splittabledofn/WatermarkEstimator.html" title="interface in org.apache.beam.sdk.transforms.splittabledofn">WatermarkEstimator</a><<a href="https://static.javadoc.io/joda-time/joda-time/2.10.10/org/joda/time/Instant.html?is-external=true" title="class or interface in org.joda.time">Instant</a>>> fn)</pre> |
| <div class="block">A function to create a <a href="../../../../../../org/apache/beam/sdk/transforms/splittabledofn/WatermarkEstimator.html" title="interface in org.apache.beam.sdk.transforms.splittabledofn"><code>WatermarkEstimator</code></a>. The default value is <a href="../../../../../../org/apache/beam/sdk/transforms/splittabledofn/WatermarkEstimators.MonotonicallyIncreasing.html" title="class in org.apache.beam.sdk.transforms.splittabledofn"><code>WatermarkEstimators.MonotonicallyIncreasing</code></a>.</div> |
| </li> |
| </ul> |
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| <h4>withLogAppendTime</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> withLogAppendTime()</pre> |
| <div class="block">Use the log append time as the output timestamp.</div> |
| </li> |
| </ul> |
| <a name="withProcessingTime--"> |
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| <h4>withProcessingTime</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> withProcessingTime()</pre> |
| <div class="block">Use the processing time as the output timestamp.</div> |
| </li> |
| </ul> |
| <a name="withCreateTime--"> |
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| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> withCreateTime()</pre> |
| <div class="block">Use the creation time of <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaRecord.html" title="class in org.apache.beam.sdk.io.kafka"><code>KafkaRecord</code></a> as the output timestamp.</div> |
| </li> |
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| <h4>withWallTimeWatermarkEstimator</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> withWallTimeWatermarkEstimator()</pre> |
| <div class="block">Use the <a href="../../../../../../org/apache/beam/sdk/transforms/splittabledofn/WatermarkEstimators.WallTime.html" title="class in org.apache.beam.sdk.transforms.splittabledofn"><code>WatermarkEstimators.WallTime</code></a> as the watermark estimator.</div> |
| </li> |
| </ul> |
| <a name="withMonotonicallyIncreasingWatermarkEstimator--"> |
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| <h4>withMonotonicallyIncreasingWatermarkEstimator</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> withMonotonicallyIncreasingWatermarkEstimator()</pre> |
| <div class="block">Use the <a href="../../../../../../org/apache/beam/sdk/transforms/splittabledofn/WatermarkEstimators.MonotonicallyIncreasing.html" title="class in org.apache.beam.sdk.transforms.splittabledofn"><code>WatermarkEstimators.MonotonicallyIncreasing</code></a> as the watermark estimator.</div> |
| </li> |
| </ul> |
| <a name="withManualWatermarkEstimator--"> |
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| </a> |
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| <h4>withManualWatermarkEstimator</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> withManualWatermarkEstimator()</pre> |
| <div class="block">Use the <a href="../../../../../../org/apache/beam/sdk/transforms/splittabledofn/WatermarkEstimators.Manual.html" title="class in org.apache.beam.sdk.transforms.splittabledofn"><code>WatermarkEstimators.Manual</code></a> as the watermark estimator.</div> |
| </li> |
| </ul> |
| <a name="withReadCommitted--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>withReadCommitted</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> withReadCommitted()</pre> |
| <div class="block">Sets "isolation_level" to "read_committed" in Kafka consumer configuration. This ensures that |
| the consumer does not read uncommitted messages. Kafka version 0.11 introduced transactional |
| writes. Applications requiring end-to-end exactly-once semantics should only read committed |
| messages. See JavaDoc for <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/clients/consumer/KafkaConsumer.html?is-external=true" title="class or interface in org.apache.kafka.clients.consumer"><code>KafkaConsumer</code></a> for more description.</div> |
| </li> |
| </ul> |
| <a name="commitOffsets--"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>commitOffsets</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> commitOffsets()</pre> |
| <div class="block">Enable committing record offset. If <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/clients/consumer/ConsumerConfig.html?is-external=true#ENABLE_AUTO_COMMIT_CONFIG" title="class or interface in org.apache.kafka.clients.consumer"><code>ConsumerConfig.ENABLE_AUTO_COMMIT_CONFIG</code></a> is set |
| together with <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#commitOffsets--"><code>commitOffsets()</code></a>, <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#commitOffsets--"><code>commitOffsets()</code></a> will be ignored.</div> |
| </li> |
| </ul> |
| <a name="withOffsetConsumerConfigOverrides-java.util.Map-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>withOffsetConsumerConfigOverrides</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> withOffsetConsumerConfigOverrides(<a href="https://static.javadoc.io/org.checkerframework/checker-qual/3.27.0/org/checkerframework/checker/nullness/qual/Nullable.html?is-external=true" title="class or interface in org.checkerframework.checker.nullness.qual">@Nullable</a> java.util.Map<java.lang.String,java.lang.Object> offsetConsumerConfig)</pre> |
| <div class="block">Set additional configuration for the offset consumer. It may be required for a secured Kafka |
| cluster, especially when you see similar WARN log message <code>exception while fetching |
| latest offset for partition {}. will be retried</code>. |
| |
| <p>In <code>ReadFromKafkaDoFn</code>, there are two consumers running in the backend: |
| |
| <ol> |
| <li>the main consumer which reads data from kafka. |
| <li>the secondary offset consumer which is used to estimate the backlog by fetching the |
| latest offset. |
| </ol> |
| |
| <p>By default, offset consumer inherits the configuration from main consumer, with an |
| auto-generated <a href="https://static.javadoc.io/org.apache.kafka/kafka-clients/2.4.1/org/apache/kafka/clients/consumer/ConsumerConfig.html?is-external=true#GROUP_ID_CONFIG" title="class or interface in org.apache.kafka.clients.consumer"><code>ConsumerConfig.GROUP_ID_CONFIG</code></a>. This may not work in a secured Kafka |
| which requires additional configuration. |
| |
| <p>See <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withConsumerConfigUpdates-java.util.Map-"><code>withConsumerConfigUpdates(java.util.Map<java.lang.String, java.lang.Object>)</code></a> for configuring the main consumer.</div> |
| </li> |
| </ul> |
| <a name="withConsumerConfigOverrides-java.util.Map-"> |
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| <h4>withConsumerConfigOverrides</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="class in org.apache.beam.sdk.io.kafka">KafkaIO.ReadSourceDescriptors</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>> withConsumerConfigOverrides(java.util.Map<java.lang.String,java.lang.Object> consumerConfig)</pre> |
| <div class="block">Replaces the configuration for the main consumer. |
| |
| <p>In <code>ReadFromKafkaDoFn</code>, there are two consumers running in the backend: |
| |
| <ol> |
| <li>the main consumer which reads data from kafka. |
| <li>the secondary offset consumer which is used to estimate the backlog by fetching the |
| latest offset. |
| </ol> |
| |
| <p>By default, main consumer uses the configuration from <code>KafkaIOUtils.DEFAULT_CONSUMER_PROPERTIES</code>. |
| |
| <p>See <a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html#withConsumerConfigUpdates-java.util.Map-"><code>withConsumerConfigUpdates(java.util.Map<java.lang.String, java.lang.Object>)</code></a> for updating the configuration instead of |
| overriding it.</div> |
| </li> |
| </ul> |
| <a name="expand-org.apache.beam.sdk.values.PCollection-"> |
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| <ul class="blockListLast"> |
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| <h4>expand</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaRecord.html" title="class in org.apache.beam.sdk.io.kafka">KafkaRecord</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>>> expand(<a href="../../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaSourceDescriptor.html" title="class in org.apache.beam.sdk.io.kafka">KafkaSourceDescriptor</a>> input)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html#expand-InputT-">PTransform</a></code></span></div> |
| <div class="block">Override this method to specify how this <code>PTransform</code> should be expanded on the given |
| <code>InputT</code>. |
| |
| <p>NOTE: This method should not be called directly. Instead apply the <code>PTransform</code> should |
| be applied to the <code>InputT</code> using the <code>apply</code> method. |
| |
| <p>Composite transforms, which are defined in terms of other transforms, should return the |
| output of one of the composed transforms. Non-composite transforms, which do not apply any |
| transforms internally, should return a new unbound output and register evaluators (via |
| backend-specific registration methods).</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html#expand-InputT-">expand</a></code> in class <code><a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">PTransform</a><<a href="../../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaSourceDescriptor.html" title="class in org.apache.beam.sdk.io.kafka">KafkaSourceDescriptor</a>>,<a href="../../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaRecord.html" title="class in org.apache.beam.sdk.io.kafka">KafkaRecord</a><<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">K</a>,<a href="../../../../../../org/apache/beam/sdk/io/kafka/KafkaIO.ReadSourceDescriptors.html" title="type parameter in KafkaIO.ReadSourceDescriptors">V</a>>>></code></dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
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