org.apache.flink.runtime.state.v2

类 InternalKeyedState<K,V>

java.lang.Object

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

类型参数:

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

V - The type of values kept internally in state.

所有已实现的接口:

org.apache.flink.api.common.state.v2.State

直接已知子类:

InternalAggregatingState, InternalListState, InternalMapState, InternalReducingState, InternalValueState

@Internal
public abstract class InternalKeyedState<K,V>
extends Object
implements org.apache.flink.api.common.state.v2.State

The InternalKeyedState is the root of the internal state type hierarchy, similar to the State being the root of the public API state hierarchy.

The public API state hierarchy is intended to be programmed against by Flink applications. The internal state hierarchy holds all the auxiliary methods that communicates with AsyncExecutionController and not intended to be used by user applications.

构造器概要

构造器

构造器和说明
InternalKeyedState(StateRequestHandler stateRequestHandler, StateDescriptor<V> stateDescriptor) Creates a new InternalKeyedState with the given asyncExecutionController and stateDescriptor.

方法概要

限定符和类型	方法和说明
org.apache.flink.api.common.state.v2.StateFuture<Void>	asyncClear()
StateDescriptor<V>	getStateDescriptor() Return specific StateDescriptor.
org.apache.flink.api.common.typeutils.TypeSerializer<V>	getValueSerializer() Return related value serializer.
protected <IN,OUT> org.apache.flink.api.common.state.v2.StateFuture<OUT>	handleRequest(StateRequestType stateRequestType, IN payload) Submit a state request to AEC.

从类继承的方法 java.lang.Object

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

构造器详细资料

InternalKeyedState

public InternalKeyedState(StateRequestHandler stateRequestHandler,
                          StateDescriptor<V> stateDescriptor)

Creates a new InternalKeyedState with the given asyncExecutionController and stateDescriptor.

方法详细资料

handleRequest

protected final <IN,OUT> org.apache.flink.api.common.state.v2.StateFuture<OUT> handleRequest(StateRequestType stateRequestType,
                                                                                             IN payload)

Submit a state request to AEC.

参数:

stateRequestType - the type of this request.

payload - the payload input for this request.

返回:

the state future.

asyncClear

public final org.apache.flink.api.common.state.v2.StateFuture<Void> asyncClear()

指定者:

asyncClear 在接口中 org.apache.flink.api.common.state.v2.State

getStateDescriptor

public StateDescriptor<V> getStateDescriptor()

Return specific StateDescriptor.

getValueSerializer

public org.apache.flink.api.common.typeutils.TypeSerializer<V> getValueSerializer()

Return related value serializer.