org.apache.flink.streaming.api.operators

Class StreamReduce<IN>

java.lang.Object

org.apache.flink.streaming.api.operators.AbstractStreamOperator<OUT>

org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator<IN,org.apache.flink.api.common.functions.ReduceFunction<IN>>

org.apache.flink.streaming.api.operators.StreamReduce<IN>

All Implemented Interfaces:

Serializable, OneInputStreamOperator<IN,IN>, StatefulStreamOperator<IN>, StreamOperator<IN>

Direct Known Subclasses:

StreamGroupedReduce

public class StreamReduce<IN>
extends AbstractUdfStreamOperator<IN,org.apache.flink.api.common.functions.ReduceFunction<IN>>
implements OneInputStreamOperator<IN,IN>

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flink.streaming.api.operators.StreamOperator

StreamOperator.ChainingStrategy

Field Summary

Fields inherited from class org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator

userFunction

Fields inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperator

chainingStrategy, executionConfig, inputCopyDisabled, output, runtimeContext

Constructor Summary

Constructors

Constructor and Description
StreamReduce(org.apache.flink.api.common.functions.ReduceFunction<IN> reducer)

Method Summary

Modifier and Type	Method and Description
void	processElement(IN element)

Methods inherited from class org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator

close, confirmCheckpointCompleted, getStateSnapshotFromFunction, getUserFunction, open, restoreInitialState, setup

Methods inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperator

disableInputCopy, getChainingStrategy, isInputCopyingDisabled, setChainingStrategy

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.streaming.api.operators.StreamOperator

close, getChainingStrategy, isInputCopyingDisabled, open, setChainingStrategy, setup

Constructor Detail

StreamReduce

public StreamReduce(org.apache.flink.api.common.functions.ReduceFunction<IN> reducer)

Method Detail

processElement

public void processElement(IN element)
                    throws Exception

Specified by:

processElement in interface OneInputStreamOperator<IN,IN>

Throws:

Exception