Package org.apache.flink.runtime.state.v2

Class RegisteredKeyValueStateBackendMetaInfo<N,S>

java.lang.Object

org.apache.flink.runtime.state.RegisteredStateMetaInfoBase

org.apache.flink.runtime.state.v2.RegisteredKeyValueStateBackendMetaInfo<N,S>

Type Parameters:

S - Type of state value

Direct Known Subclasses:

RegisteredKeyAndUserKeyValueStateBackendMetaInfo

public class RegisteredKeyValueStateBackendMetaInfo<N,S>
extends RegisteredStateMetaInfoBase

Compound meta information for a registered state in a keyed state backend. This combines all serializers and the state name.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.flink.runtime.state.RegisteredStateMetaInfoBase

RegisteredStateMetaInfoBase.Key

Field Summary

Fields

Modifier and Type	Field	Description
protected StateSerializerProvider<N>	namespaceSerializerProvider
protected StateSerializerProvider<S>	stateSerializerProvider
protected StateSnapshotTransformer.StateSnapshotTransformFactory<S>	stateSnapshotTransformFactory
protected org.apache.flink.api.common.state.v2.StateDescriptor.Type	stateType

Fields inherited from class org.apache.flink.runtime.state.RegisteredStateMetaInfoBase

name

Constructor Summary

Constructors

Constructor	Description
RegisteredKeyValueStateBackendMetaInfo(String name, org.apache.flink.api.common.state.v2.StateDescriptor.Type stateType, org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer, org.apache.flink.api.common.typeutils.TypeSerializer<S> stateSerializer)
RegisteredKeyValueStateBackendMetaInfo(String name, org.apache.flink.api.common.state.v2.StateDescriptor.Type stateType, org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer, org.apache.flink.api.common.typeutils.TypeSerializer<S> stateSerializer, StateSnapshotTransformer.StateSnapshotTransformFactory<S> stateSnapshotTransformFactory)
RegisteredKeyValueStateBackendMetaInfo(String name, org.apache.flink.api.common.state.v2.StateDescriptor.Type stateType, StateSerializerProvider<N> namespaceSerializerProvider, StateSerializerProvider<S> stateSerializerProvider, StateSnapshotTransformer.StateSnapshotTransformFactory<S> stateSnapshotTransformFactory)
RegisteredKeyValueStateBackendMetaInfo(StateMetaInfoSnapshot snapshot)

Method Summary

Modifier and Type	Method	Description
void	checkStateMetaInfo(org.apache.flink.api.common.state.v2.StateDescriptor<?> stateDesc)
boolean	equals(Object o)
static RegisteredStateMetaInfoBase	fromMetaInfoSnapshot(StateMetaInfoSnapshot snapshot)
org.apache.flink.api.common.typeutils.TypeSerializer<N>	getNamespaceSerializer()
org.apache.flink.api.common.typeutils.TypeSerializer<S>	getStateSerializer()
org.apache.flink.api.common.state.v2.StateDescriptor.Type	getStateType()
int	hashCode()
StateMetaInfoSnapshot	snapshot()
String	toString()
org.apache.flink.api.common.typeutils.TypeSerializerSchemaCompatibility<N>	updateNamespaceSerializer(org.apache.flink.api.common.typeutils.TypeSerializer<N> newNamespaceSerializer)
org.apache.flink.api.common.typeutils.TypeSerializerSchemaCompatibility<S>	updateStateSerializer(org.apache.flink.api.common.typeutils.TypeSerializer<S> newStateSerializer)
RegisteredKeyValueStateBackendMetaInfo<N,S>	withSerializerUpgradesAllowed()	create a new metadata object with Lazy serializer provider using existing one as a snapshot.

Methods inherited from class org.apache.flink.runtime.state.RegisteredStateMetaInfoBase

asMapKey, getName

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

stateType

@Nonnull
protected final org.apache.flink.api.common.state.v2.StateDescriptor.Type stateType

namespaceSerializerProvider

@Nonnull
protected final StateSerializerProvider<N> namespaceSerializerProvider

stateSerializerProvider

@Nonnull
protected final StateSerializerProvider<S> stateSerializerProvider

stateSnapshotTransformFactory

@Nonnull
protected StateSnapshotTransformer.StateSnapshotTransformFactory<S> stateSnapshotTransformFactory

Constructor Detail

RegisteredKeyValueStateBackendMetaInfo

public RegisteredKeyValueStateBackendMetaInfo(@Nonnull
                                              String name,
                                              @Nonnull
                                              org.apache.flink.api.common.state.v2.StateDescriptor.Type stateType,
                                              @Nonnull
                                              org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer,
                                              @Nonnull
                                              org.apache.flink.api.common.typeutils.TypeSerializer<S> stateSerializer)

RegisteredKeyValueStateBackendMetaInfo

public RegisteredKeyValueStateBackendMetaInfo(@Nonnull
                                              String name,
                                              @Nonnull
                                              org.apache.flink.api.common.state.v2.StateDescriptor.Type stateType,
                                              @Nonnull
                                              org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer,
                                              @Nonnull
                                              org.apache.flink.api.common.typeutils.TypeSerializer<S> stateSerializer,
                                              @Nonnull
                                              StateSnapshotTransformer.StateSnapshotTransformFactory<S> stateSnapshotTransformFactory)

RegisteredKeyValueStateBackendMetaInfo

public RegisteredKeyValueStateBackendMetaInfo(@Nonnull
                                              StateMetaInfoSnapshot snapshot)

RegisteredKeyValueStateBackendMetaInfo

public RegisteredKeyValueStateBackendMetaInfo(@Nonnull
                                              String name,
                                              @Nonnull
                                              org.apache.flink.api.common.state.v2.StateDescriptor.Type stateType,
                                              @Nonnull
                                              StateSerializerProvider<N> namespaceSerializerProvider,
                                              @Nonnull
                                              StateSerializerProvider<S> stateSerializerProvider,
                                              @Nonnull
                                              StateSnapshotTransformer.StateSnapshotTransformFactory<S> stateSnapshotTransformFactory)

Method Detail

getStateType

@Nonnull
public org.apache.flink.api.common.state.v2.StateDescriptor.Type getStateType()

getNamespaceSerializer

@Nonnull
public org.apache.flink.api.common.typeutils.TypeSerializer<N> getNamespaceSerializer()

getStateSerializer

@Nonnull
public org.apache.flink.api.common.typeutils.TypeSerializer<S> getStateSerializer()

updateStateSerializer

@Nonnull
public org.apache.flink.api.common.typeutils.TypeSerializerSchemaCompatibility<S> updateStateSerializer(org.apache.flink.api.common.typeutils.TypeSerializer<S> newStateSerializer)

updateNamespaceSerializer

@Nonnull
public org.apache.flink.api.common.typeutils.TypeSerializerSchemaCompatibility<N> updateNamespaceSerializer(org.apache.flink.api.common.typeutils.TypeSerializer<N> newNamespaceSerializer)

equals

public boolean equals(Object o)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

snapshot

@Nonnull
public StateMetaInfoSnapshot snapshot()

Specified by:

snapshot in class RegisteredStateMetaInfoBase

withSerializerUpgradesAllowed

@Nonnull
public RegisteredKeyValueStateBackendMetaInfo<N,S> withSerializerUpgradesAllowed()

Description copied from class: 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.

Specified by:

withSerializerUpgradesAllowed in class RegisteredStateMetaInfoBase

checkStateMetaInfo

public void checkStateMetaInfo(org.apache.flink.api.common.state.v2.StateDescriptor<?> stateDesc)

fromMetaInfoSnapshot

public static RegisteredStateMetaInfoBase fromMetaInfoSnapshot(@Nonnull
                                                               StateMetaInfoSnapshot snapshot)