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

Class CoStreamWindow<IN1,IN2,OUT>

java.lang.Object

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

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

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

All Implemented Interfaces:

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

public class CoStreamWindow<IN1,IN2,OUT>
extends AbstractUdfStreamOperator<OUT,CoWindowFunction<IN1,IN2,OUT>>
implements TwoInputStreamOperator<IN1,IN2,OUT>

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	CoStreamWindow.StreamWindow

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

StreamOperator.ChainingStrategy

Field Summary

Fields

Modifier and Type	Field and Description
protected CircularFifoList<StreamRecord<IN1>>	circularList1
protected CircularFifoList<StreamRecord<IN2>>	circularList2
protected long	nextRecordTime
protected long	slideSize
protected long	startTime
protected TimestampWrapper<IN1>	timeStamp1
protected TimestampWrapper<IN2>	timeStamp2
protected CoStreamWindow.StreamWindow	window
protected long	windowSize

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
CoStreamWindow(CoWindowFunction<IN1,IN2,OUT> coWindowFunction, long windowSize, long slideInterval, TimestampWrapper<IN1> timeStamp1, TimestampWrapper<IN2> timeStamp2)

Method Summary

Modifier and Type	Method and Description
protected void	callUserFunction()
void	close() This method is called after no more elements for can arrive for processing.
void	processElement1(IN1 element)
void	processElement2(IN2 element)
void	setSlideSize(long slideSize)

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

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

getChainingStrategy, isInputCopyingDisabled, open, setChainingStrategy, setup

Field Detail

windowSize

protected long windowSize

slideSize

protected long slideSize

circularList1

protected CircularFifoList<StreamRecord<IN1>> circularList1

circularList2

protected CircularFifoList<StreamRecord<IN2>> circularList2

timeStamp1

protected TimestampWrapper<IN1> timeStamp1

timeStamp2

protected TimestampWrapper<IN2> timeStamp2

window

protected CoStreamWindow.StreamWindow window

startTime

protected long startTime

nextRecordTime

protected long nextRecordTime

Constructor Detail

CoStreamWindow

public CoStreamWindow(CoWindowFunction<IN1,IN2,OUT> coWindowFunction,
                      long windowSize,
                      long slideInterval,
                      TimestampWrapper<IN1> timeStamp1,
                      TimestampWrapper<IN2> timeStamp2)

Method Detail

processElement1

public void processElement1(IN1 element)
                     throws Exception

Specified by:

processElement1 in interface TwoInputStreamOperator<IN1,IN2,OUT>

Throws:

Exception

processElement2

public void processElement2(IN2 element)
                     throws Exception

Specified by:

processElement2 in interface TwoInputStreamOperator<IN1,IN2,OUT>

Throws:

Exception

callUserFunction

protected void callUserFunction()
                         throws Exception

Throws:

Exception

close

public void close()
           throws Exception

Description copied from interface: StreamOperator

This method is called after no more elements for can arrive for processing.

Specified by:

close in interface StreamOperator<OUT>

Overrides:

close in class AbstractUdfStreamOperator<OUT,CoWindowFunction<IN1,IN2,OUT>>

Throws:

Exception

setSlideSize

public void setSlideSize(long slideSize)