org.apache.flink.streaming.api.operators.co

Class CoStreamFlatMap<IN1,IN2,OUT>

java.lang.Object

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

org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator<OUT,CoFlatMapFunction<IN1,IN2,OUT>>

org.apache.flink.streaming.api.operators.co.CoStreamFlatMap<IN1,IN2,OUT>

All Implemented Interfaces:

Serializable, OutputTypeConfigurable<OUT>, StreamOperator<OUT>, TwoInputStreamOperator<IN1,IN2,OUT>

@Internal
public class CoStreamFlatMap<IN1,IN2,OUT>
extends AbstractUdfStreamOperator<OUT,CoFlatMapFunction<IN1,IN2,OUT>>
implements TwoInputStreamOperator<IN1,IN2,OUT>

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperator

AbstractStreamOperator.CountingOutput

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, LOG, metrics, output

Constructor Summary

Constructors

Constructor and Description
CoStreamFlatMap(CoFlatMapFunction<IN1,IN2,OUT> flatMapper)

Method Summary

Modifier and Type	Method and Description
protected TimestampedCollector<OUT>	getCollector()
void	open() This method is called immediately before any elements are processed, it should contain the operator's initialization logic.
void	processElement1(StreamRecord<IN1> element) Processes one element that arrived on the first input of this two-input operator.
void	processElement2(StreamRecord<IN2> element) Processes one element that arrived on the second input of this two-input operator.
void	processWatermark1(Watermark mark) Processes a Watermark that arrived on the first input of this two-input operator.
void	processWatermark2(Watermark mark) Processes a Watermark that arrived on the second input of this two-input operator.

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

close, dispose, getUserFunction, getUserFunctionParameters, notifyOfCompletedCheckpoint, restoreState, setOutputType, setup, snapshotOperatorState

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

getChainingStrategy, getContainingTask, getCurrentProcessingTime, getExecutionConfig, getMetricGroup, getOperatorConfig, getPartitionedState, getPartitionedState, getRuntimeContext, getStateBackend, getUserCodeClassloader, registerTimer, setChainingStrategy, setKeyContext, setKeyContextElement1, setKeyContextElement2

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, dispose, getChainingStrategy, getMetricGroup, notifyOfCompletedCheckpoint, restoreState, setChainingStrategy, setKeyContextElement1, setKeyContextElement2, setup, snapshotOperatorState

Constructor Detail

CoStreamFlatMap

public CoStreamFlatMap(CoFlatMapFunction<IN1,IN2,OUT> flatMapper)

Method Detail

open

public void open()
          throws Exception

Description copied from class: AbstractStreamOperator

This method is called immediately before any elements are processed, it should contain the operator's initialization logic.

The default implementation does nothing.

Specified by:

open in interface StreamOperator<OUT>

Overrides:

open in class AbstractUdfStreamOperator<OUT,CoFlatMapFunction<IN1,IN2,OUT>>

Throws:

Exception - An exception in this method causes the operator to fail.

processElement1

public void processElement1(StreamRecord<IN1> element)
                     throws Exception

Description copied from interface: TwoInputStreamOperator

Processes one element that arrived on the first input of this two-input operator. This method is guaranteed to not be called concurrently with other methods of the operator.

Specified by:

processElement1 in interface TwoInputStreamOperator<IN1,IN2,OUT>

Throws:

Exception

processElement2

public void processElement2(StreamRecord<IN2> element)
                     throws Exception

Description copied from interface: TwoInputStreamOperator

Processes one element that arrived on the second input of this two-input operator. This method is guaranteed to not be called concurrently with other methods of the operator.

Specified by:

processElement2 in interface TwoInputStreamOperator<IN1,IN2,OUT>

Throws:

Exception

processWatermark1

public void processWatermark1(Watermark mark)
                       throws Exception

Description copied from interface: TwoInputStreamOperator

Processes a Watermark that arrived on the first input of this two-input operator. This method is guaranteed to not be called concurrently with other methods of the operator.

Specified by:

processWatermark1 in interface TwoInputStreamOperator<IN1,IN2,OUT>

Throws:

Exception

See Also:

Watermark

processWatermark2

public void processWatermark2(Watermark mark)
                       throws Exception

Description copied from interface: TwoInputStreamOperator

Processes a Watermark that arrived on the second input of this two-input operator. This method is guaranteed to not be called concurrently with other methods of the operator.

Specified by:

processWatermark2 in interface TwoInputStreamOperator<IN1,IN2,OUT>

Throws:

Exception

See Also:

Watermark

getCollector

protected TimestampedCollector<OUT> getCollector()