org.apache.flink.runtime.state.heap

类 NestedStateMapSnapshot<K,N,S>

java.lang.Object

org.apache.flink.runtime.state.heap.StateMapSnapshot<K,N,S,NestedStateMap<K,N,S>>

org.apache.flink.runtime.state.heap.NestedStateMapSnapshot<K,N,S>

类型参数:

K - type of key

N - type of namespace

S - type of state

public class NestedStateMapSnapshot<K,N,S>
extends StateMapSnapshot<K,N,S,NestedStateMap<K,N,S>>

This class represents the snapshot of a NestedStateMap.

字段概要

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

owningStateMap

构造器概要

构造器

构造器和说明
NestedStateMapSnapshot(NestedStateMap<K,N,S> owningStateMap) Creates a new NestedStateMapSnapshot.

方法概要

限定符和类型	方法和说明
Iterator<StateEntry<K,N,S>>	getIterator(org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer, org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer, org.apache.flink.api.common.typeutils.TypeSerializer<S> stateSerializer, StateSnapshotTransformer<S> stateSnapshotTransformer)
void	writeState(org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer, org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer, org.apache.flink.api.common.typeutils.TypeSerializer<S> stateSerializer, org.apache.flink.core.memory.DataOutputView dov, StateSnapshotTransformer<S> stateSnapshotTransformer) Writes the state in this snapshot to output.

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

isOwner, release

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

NestedStateMapSnapshot

public NestedStateMapSnapshot(NestedStateMap<K,N,S> owningStateMap)

Creates a new NestedStateMapSnapshot.

参数:

owningStateMap - the NestedStateMap for which this object represents a snapshot.

方法详细资料

getIterator

public Iterator<StateEntry<K,N,S>> getIterator(@Nonnull
                                               org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer,
                                               @Nonnull
                                               org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer,
                                               @Nonnull
                                               org.apache.flink.api.common.typeutils.TypeSerializer<S> stateSerializer,
                                               @Nullable
                                               StateSnapshotTransformer<S> stateSnapshotTransformer)

指定者:

getIterator 在类中 StateMapSnapshot<K,N,S,NestedStateMap<K,N,S>>

writeState

public void writeState(org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer,
                       org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer,
                       org.apache.flink.api.common.typeutils.TypeSerializer<S> stateSerializer,
                       @Nonnull
                       org.apache.flink.core.memory.DataOutputView dov,
                       @Nullable
                       StateSnapshotTransformer<S> stateSnapshotTransformer)
                throws IOException

从类复制的说明: StateMapSnapshot

Writes the state in this snapshot to output. The state need to be transformed with the given transformer if the transformer is non-null.

指定者:

writeState 在类中 StateMapSnapshot<K,N,S,NestedStateMap<K,N,S>>

参数:

keySerializer - the key serializer.

namespaceSerializer - the namespace serializer.

stateSerializer - the state serializer.

dov - the output.

stateSnapshotTransformer - state transformer, and can be null.

抛出:

IOException - on write-related problems.