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| <h2 title="Class SparkCompat" class="title">Class SparkCompat</h2> |
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| <pre><a href="../../../../../../org/apache/beam/sdk/annotations/Internal.html" title="annotation in org.apache.beam.sdk.annotations">@Internal</a> |
| public class <span class="typeNameLabel">SparkCompat</span> |
| extends java.lang.Object</pre> |
| <div class="block">A set of functions to provide API compatibility between Spark 2 and Spark 3.</div> |
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| <td class="colFirst"><code>static <K,InputT,AccumT,OutputT><br>org.apache.spark.api.java.JavaPairRDD<K,org.apache.beam.sdk.util.WindowedValue<OutputT>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/runners/spark/util/SparkCompat.html#extractOutput-org.apache.spark.api.java.JavaPairRDD--">extractOutput</a></span>(org.apache.spark.api.java.JavaPairRDD<K,<any>> accumulatePerKey, |
| <any> sparkCombineFn)</code> |
| <div class="block">Extracts the output for a given collection of WindowedAccumulators.</div> |
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| <td class="colFirst"><code>static <T> org.apache.spark.streaming.api.java.JavaDStream<org.apache.beam.sdk.util.WindowedValue<T>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/runners/spark/util/SparkCompat.html#joinStreams-org.apache.spark.streaming.api.java.JavaStreamingContext-java.util.List-">joinStreams</a></span>(org.apache.spark.streaming.api.java.JavaStreamingContext streamingContext, |
| java.util.List<org.apache.spark.streaming.api.java.JavaDStream<org.apache.beam.sdk.util.WindowedValue<T>>> dStreams)</code> |
| <div class="block">Union of dStreams in the given StreamingContext.</div> |
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| <h4>SparkCompat</h4> |
| <pre>public SparkCompat()</pre> |
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| <h4>joinStreams</h4> |
| <pre>public static <T> org.apache.spark.streaming.api.java.JavaDStream<org.apache.beam.sdk.util.WindowedValue<T>> joinStreams(org.apache.spark.streaming.api.java.JavaStreamingContext streamingContext, |
| java.util.List<org.apache.spark.streaming.api.java.JavaDStream<org.apache.beam.sdk.util.WindowedValue<T>>> dStreams)</pre> |
| <div class="block">Union of dStreams in the given StreamingContext. |
| |
| <p>This is required because the API to join (union) DStreams is different among Spark versions. |
| See https://issues.apache.org/jira/browse/SPARK-25737</div> |
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| <pre>public static <K,InputT,AccumT,OutputT> org.apache.spark.api.java.JavaPairRDD<K,org.apache.beam.sdk.util.WindowedValue<OutputT>> extractOutput(org.apache.spark.api.java.JavaPairRDD<K,<any>> accumulatePerKey, |
| <any> sparkCombineFn)</pre> |
| <div class="block">Extracts the output for a given collection of WindowedAccumulators. |
| |
| <p>This is required because the API of JavaPairRDD.flatMapValues is different among Spark |
| versions. See https://issues.apache.org/jira/browse/SPARK-19287</div> |
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