org.apache.beam.runners.flink.translation.functions

Class FlinkMultiOutputPruningFunction<T>

java.lang.Object

org.apache.beam.runners.flink.translation.functions.FlinkMultiOutputPruningFunction<T>

All Implemented Interfaces:

java.io.Serializable, org.apache.flink.api.common.functions.FlatMapFunction<org.apache.beam.sdk.util.WindowedValue<org.apache.beam.sdk.transforms.join.RawUnionValue>,org.apache.beam.sdk.util.WindowedValue<T>>, org.apache.flink.api.common.functions.Function

public class FlinkMultiOutputPruningFunction<T>
extends java.lang.Object
implements org.apache.flink.api.common.functions.FlatMapFunction<org.apache.beam.sdk.util.WindowedValue<org.apache.beam.sdk.transforms.join.RawUnionValue>,org.apache.beam.sdk.util.WindowedValue<T>>

A FlatMapFunction function that filters out those elements that don't belong in this output. We need this to implement MultiOutput ParDo functions in combination with FlinkDoFnFunction.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
FlinkMultiOutputPruningFunction(int ourOutputTag)

Method Summary

Modifier and Type	Method and Description
void	flatMap(org.apache.beam.sdk.util.WindowedValue<org.apache.beam.sdk.transforms.join.RawUnionValue> windowedValue, org.apache.flink.util.Collector<org.apache.beam.sdk.util.WindowedValue<T>> collector)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FlinkMultiOutputPruningFunction

public FlinkMultiOutputPruningFunction(int ourOutputTag)

Method Detail

flatMap

public void flatMap(org.apache.beam.sdk.util.WindowedValue<org.apache.beam.sdk.transforms.join.RawUnionValue> windowedValue,
                    org.apache.flink.util.Collector<org.apache.beam.sdk.util.WindowedValue<T>> collector)
             throws java.lang.Exception

Specified by:

flatMap in interface org.apache.flink.api.common.functions.FlatMapFunction<org.apache.beam.sdk.util.WindowedValue<org.apache.beam.sdk.transforms.join.RawUnionValue>,org.apache.beam.sdk.util.WindowedValue<T>>

Throws:

java.lang.Exception