org.apache.flink.table.runtime.operators.window.groupwindow.internal

Class MergingWindowProcessFunction.DefaultAccMergingConsumer<W extends Window>

java.lang.Object

org.apache.flink.table.runtime.operators.window.groupwindow.internal.MergingWindowProcessFunction.DefaultAccMergingConsumer<W>

All Implemented Interfaces:

BiConsumerWithException<W,Collection<W>,Throwable>

Enclosing class:

MergingWindowProcessFunction<K,W extends Window>

public static class MergingWindowProcessFunction.DefaultAccMergingConsumer<W extends Window>
extends Object
implements BiConsumerWithException<W,Collection<W>,Throwable>

A default merging consumer that merges the accumulators in state windows that waiting to be merged into the target state window.

The first parameter is the target state window, the second parameter is the windows that need to be merged.

Constructor Summary

Constructors

Constructor and Description
DefaultAccMergingConsumer(InternalWindowProcessFunction.Context<?,W> ctx, NamespaceAggsHandleFunctionBase<W> windowAggregator)

Method Summary

Modifier and Type	Method and Description
void	accept(W stateWindowResult, Collection<W> stateWindowsToBeMerged) Performs this operation on the given arguments.

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.util.function.BiConsumerWithException

unchecked

Constructor Detail

DefaultAccMergingConsumer

public DefaultAccMergingConsumer(InternalWindowProcessFunction.Context<?,W> ctx,
                                 NamespaceAggsHandleFunctionBase<W> windowAggregator)

Method Detail

accept

public void accept(W stateWindowResult,
                   Collection<W> stateWindowsToBeMerged)
            throws Throwable

Description copied from interface: BiConsumerWithException

Performs this operation on the given arguments.

Specified by:

accept in interface BiConsumerWithException<W extends Window,Collection<W extends Window>,Throwable>

Parameters:

stateWindowResult - the first input argument

stateWindowsToBeMerged - the second input argument

Throws:

Throwable