org.apache.flink.runtime.state

类 RegisteredPriorityQueueStateBackendMetaInfo<T>

java.lang.Object

org.apache.flink.runtime.state.RegisteredStateMetaInfoBase

org.apache.flink.runtime.state.RegisteredPriorityQueueStateBackendMetaInfo<T>

public class RegisteredPriorityQueueStateBackendMetaInfo<T>
extends RegisteredStateMetaInfoBase

Meta information about a priority queue state in a backend.

字段概要

从类继承的字段 org.apache.flink.runtime.state.RegisteredStateMetaInfoBase

name

构造器概要

构造器

构造器和说明
RegisteredPriorityQueueStateBackendMetaInfo(StateMetaInfoSnapshot snapshot)
RegisteredPriorityQueueStateBackendMetaInfo(String name, org.apache.flink.api.common.typeutils.TypeSerializer<T> elementSerializer)

方法概要

限定符和类型	方法和说明
RegisteredPriorityQueueStateBackendMetaInfo	deepCopy()
org.apache.flink.api.common.typeutils.TypeSerializer<T>	getElementSerializer()
org.apache.flink.api.common.typeutils.TypeSerializer<T>	getPreviousElementSerializer()
StateMetaInfoSnapshot	snapshot()
org.apache.flink.api.common.typeutils.TypeSerializerSchemaCompatibility<T>	updateElementSerializer(org.apache.flink.api.common.typeutils.TypeSerializer<T> newElementSerializer)
RegisteredPriorityQueueStateBackendMetaInfo<T>	withSerializerUpgradesAllowed() create a new metadata object with Lazy serializer provider using existing one as a snapshot.

从类继承的方法 org.apache.flink.runtime.state.RegisteredStateMetaInfoBase

fromMetaInfoSnapshot, getName

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

RegisteredPriorityQueueStateBackendMetaInfo

public RegisteredPriorityQueueStateBackendMetaInfo(@Nonnull
                                                   String name,
                                                   @Nonnull
                                                   org.apache.flink.api.common.typeutils.TypeSerializer<T> elementSerializer)

RegisteredPriorityQueueStateBackendMetaInfo

public RegisteredPriorityQueueStateBackendMetaInfo(StateMetaInfoSnapshot snapshot)

方法详细资料

snapshot

@Nonnull
public StateMetaInfoSnapshot snapshot()

指定者:

snapshot 在类中 RegisteredStateMetaInfoBase

withSerializerUpgradesAllowed

@Nonnull
public RegisteredPriorityQueueStateBackendMetaInfo<T> withSerializerUpgradesAllowed()

从类复制的说明: RegisteredStateMetaInfoBase

create a new metadata object with Lazy serializer provider using existing one as a snapshot. Sometimes metadata was just created or updated, but its StateSerializerProvider will not allow further updates. So this method could replace it with a new one that contains a fresh LazilyRegisteredStateSerializerProvider.

指定者:

withSerializerUpgradesAllowed 在类中 RegisteredStateMetaInfoBase

getElementSerializer

@Nonnull
public org.apache.flink.api.common.typeutils.TypeSerializer<T> getElementSerializer()

updateElementSerializer

@Nonnull
public org.apache.flink.api.common.typeutils.TypeSerializerSchemaCompatibility<T> updateElementSerializer(org.apache.flink.api.common.typeutils.TypeSerializer<T> newElementSerializer)

getPreviousElementSerializer

@Nullable
public org.apache.flink.api.common.typeutils.TypeSerializer<T> getPreviousElementSerializer()

deepCopy

public RegisteredPriorityQueueStateBackendMetaInfo deepCopy()