org.apache.flink.streaming.api.operators.windowing

Class GroupedWindowBuffer<T>

java.lang.Object

org.apache.flink.streaming.api.operators.AbstractStreamOperator<StreamWindow<T>>

org.apache.flink.streaming.api.operators.windowing.StreamWindowBuffer<T>

org.apache.flink.streaming.api.operators.windowing.GroupedWindowBuffer<T>

All Implemented Interfaces:

Serializable, OneInputStreamOperator<WindowEvent<T>,StreamWindow<T>>, StreamOperator<StreamWindow<T>>

public class GroupedWindowBuffer<T>
extends StreamWindowBuffer<T>

This operator flattens the results of the window transformations by outputing the elements of the StreamWindow one-by-one

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.windowing.StreamWindowBuffer

buffer

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

chainingStrategy, executionConfig, inputCopyDisabled, output, runtimeContext

Constructor Summary

Constructors

Constructor and Description
GroupedWindowBuffer(WindowBuffer<T> buffer, org.apache.flink.api.java.functions.KeySelector<T,?> keySelector)

Method Summary

Modifier and Type	Method and Description
void	processElement(WindowEvent<T> event)

Methods inherited from class org.apache.flink.streaming.api.operators.windowing.StreamWindowBuffer

handleWindowEvent

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

close, disableInputCopy, getChainingStrategy, isInputCopyingDisabled, open, setChainingStrategy, setup

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

GroupedWindowBuffer

public GroupedWindowBuffer(WindowBuffer<T> buffer,
                           org.apache.flink.api.java.functions.KeySelector<T,?> keySelector)

Method Detail

processElement

public void processElement(WindowEvent<T> event)
                    throws Exception

Specified by:

processElement in interface OneInputStreamOperator<WindowEvent<T>,StreamWindow<T>>

Overrides:

processElement in class StreamWindowBuffer<T>

Throws:

Exception