org.apache.flink.state.api.input.operator.window

Class ReduceEvictingWindowReaderFunction<IN,OUT,KEY,W extends org.apache.flink.streaming.api.windowing.windows.Window>

java.lang.Object

org.apache.flink.api.common.functions.AbstractRichFunction

org.apache.flink.state.api.functions.WindowReaderFunction<org.apache.flink.streaming.runtime.streamrecord.StreamRecord<IN>,OUT,KEY,W>

org.apache.flink.state.api.input.operator.window.EvictingWindowReaderFunction<IN,IN,OUT,KEY,W>

org.apache.flink.state.api.input.operator.window.ReduceEvictingWindowReaderFunction<IN,OUT,KEY,W>

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.RichFunction

@Internal
public class ReduceEvictingWindowReaderFunction<IN,OUT,KEY,W extends org.apache.flink.streaming.api.windowing.windows.Window>
extends EvictingWindowReaderFunction<IN,IN,OUT,KEY,W>

A wrapper function for reading state from an evicting window operator with a reduce function.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.flink.state.api.functions.WindowReaderFunction

WindowReaderFunction.Context<W extends org.apache.flink.streaming.api.windowing.windows.Window>

Constructor Summary

Constructors

Constructor and Description
ReduceEvictingWindowReaderFunction(WindowReaderFunction<IN,OUT,KEY,W> wrappedFunction, org.apache.flink.api.common.functions.ReduceFunction<IN> reduceFunction)

Method Summary

Modifier and Type	Method and Description
Iterable<IN>	transform(Iterable<org.apache.flink.streaming.runtime.streamrecord.StreamRecord<IN>> elements)

Methods inherited from class org.apache.flink.state.api.input.operator.window.EvictingWindowReaderFunction

close, open, readWindow, setRuntimeContext

Methods inherited from class org.apache.flink.api.common.functions.AbstractRichFunction

getIterationRuntimeContext, getRuntimeContext

Methods inherited from class java.lang.Object

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

Constructor Detail

ReduceEvictingWindowReaderFunction

public ReduceEvictingWindowReaderFunction(WindowReaderFunction<IN,OUT,KEY,W> wrappedFunction,
                                          org.apache.flink.api.common.functions.ReduceFunction<IN> reduceFunction)

Method Detail

transform

public Iterable<IN> transform(Iterable<org.apache.flink.streaming.runtime.streamrecord.StreamRecord<IN>> elements)
                       throws Exception

Specified by:

transform in class EvictingWindowReaderFunction<IN,IN,OUT,KEY,W extends org.apache.flink.streaming.api.windowing.windows.Window>

Throws:

Exception