org.apache.flink.streaming.api.functions.windowing

Class RichWindowFunction<IN,OUT,KEY,W extends Window>

java.lang.Object

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

org.apache.flink.streaming.api.functions.windowing.RichWindowFunction<IN,OUT,KEY,W>

Type Parameters:

IN - The type of the input value.

OUT - The type of the output value.

KEY - The type of the key.

W - The type of Window that this window function can be applied on.

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.RichFunction, WindowFunction<IN,OUT,KEY,W>

@Public
public abstract class RichWindowFunction<IN,OUT,KEY,W extends Window>
extends org.apache.flink.api.common.functions.AbstractRichFunction
implements WindowFunction<IN,OUT,KEY,W>

Rich variant of the WindowFunction. As a RichFunction, it gives access to the RuntimeContext and provides setup and tear-down methods: RichFunction.open(OpenContext) and RichFunction.close().

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
RichWindowFunction()

Method Summary

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

close, getIterationRuntimeContext, getRuntimeContext, open, setRuntimeContext

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.functions.windowing.WindowFunction

apply

Methods inherited from interface org.apache.flink.api.common.functions.RichFunction

open

Constructor Detail

RichWindowFunction

public RichWindowFunction()