org.apache.flink.runtime.state.v2

Class InternalAggregatingState<K,IN,ACC,OUT>

java.lang.Object

org.apache.flink.runtime.state.v2.InternalKeyedState<K,ACC>

org.apache.flink.runtime.state.v2.InternalAggregatingState<K,IN,ACC,OUT>

Type Parameters:

K - The type of key the state is associated to.

IN - The type of the values that are added into the state.

ACC - TThe type of the accumulator (intermediate aggregation state).

OUT - The type of the values that are returned from the state.

All Implemented Interfaces:

org.apache.flink.api.common.state.v2.AggregatingState<IN,OUT>, org.apache.flink.api.common.state.v2.AppendingState<IN,OUT>, org.apache.flink.api.common.state.v2.MergingState<IN,OUT>, org.apache.flink.api.common.state.v2.State

public class InternalAggregatingState<K,IN,ACC,OUT>
extends InternalKeyedState<K,ACC>
implements org.apache.flink.api.common.state.v2.AggregatingState<IN,OUT>

The default implementation of AggregatingState, which delegates all async requests to StateRequestHandler.

Field Summary

Fields

Modifier and Type	Field and Description
protected org.apache.flink.api.common.functions.AggregateFunction<IN,ACC,OUT>	aggregateFunction

Constructor Summary

Constructors

Constructor and Description
InternalAggregatingState(StateRequestHandler stateRequestHandler, AggregatingStateDescriptor<IN,ACC,OUT> stateDescriptor) Creates a new InternalKeyedState with the given asyncExecutionController and stateDescriptor.

Method Summary

Modifier and Type	Method and Description
org.apache.flink.api.common.state.v2.StateFuture<Void>	asyncAdd(IN value)
org.apache.flink.api.common.state.v2.StateFuture<OUT>	asyncGet()

Methods inherited from class org.apache.flink.runtime.state.v2.InternalKeyedState

asyncClear, getStateDescriptor, getValueSerializer, handleRequest

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.api.common.state.v2.State

asyncClear

Field Detail

aggregateFunction

protected final org.apache.flink.api.common.functions.AggregateFunction<IN,ACC,OUT> aggregateFunction

Constructor Detail

InternalAggregatingState

public InternalAggregatingState(StateRequestHandler stateRequestHandler,
                                AggregatingStateDescriptor<IN,ACC,OUT> stateDescriptor)

Creates a new InternalKeyedState with the given asyncExecutionController and stateDescriptor.

Parameters:

stateRequestHandler - The async request handler for handling all requests.

stateDescriptor - The properties of the state.

Method Detail

asyncGet

public org.apache.flink.api.common.state.v2.StateFuture<OUT> asyncGet()

Specified by:

asyncGet in interface org.apache.flink.api.common.state.v2.AppendingState<IN,OUT>

asyncAdd

public org.apache.flink.api.common.state.v2.StateFuture<Void> asyncAdd(IN value)

Specified by:

asyncAdd in interface org.apache.flink.api.common.state.v2.AppendingState<IN,OUT>