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

Class MergingStateAdaptor<K,N,IN,ACC,OUT,SYNCOUT>

java.lang.Object

org.apache.flink.runtime.state.v2.adaptor.StateAdaptor<K,N,InternalMergingState<K,N,IN,ACC,SYNCOUT>>

org.apache.flink.runtime.state.v2.adaptor.MergingStateAdaptor<K,N,IN,ACC,OUT,SYNCOUT>

All Implemented Interfaces:

org.apache.flink.api.common.state.v2.AppendingState<IN,OUT,SYNCOUT>, org.apache.flink.api.common.state.v2.MergingState<IN,OUT,SYNCOUT>, org.apache.flink.api.common.state.v2.State, InternalAppendingState<K,N,IN,ACC,OUT,SYNCOUT>, InternalKeyedState<K,N,ACC>, InternalMergingState<K,N,IN,ACC,OUT,SYNCOUT>, InternalPartitionedState<N>

Direct Known Subclasses:

AggregatingStateAdaptor, ReducingStateAdaptor

public abstract class MergingStateAdaptor<K,N,IN,ACC,OUT,SYNCOUT>
extends StateAdaptor<K,N,InternalMergingState<K,N,IN,ACC,SYNCOUT>>
implements InternalMergingState<K,N,IN,ACC,OUT,SYNCOUT>

An adaptor that transforms InternalMergingState into InternalMergingState.

Constructor Summary

Constructors

Constructor	Description
MergingStateAdaptor(InternalMergingState<K,N,IN,ACC,SYNCOUT> mergingState)

Method Summary

Modifier and Type	Method	Description
void	add(IN value)
org.apache.flink.api.common.state.v2.StateFuture<Void>	asyncAdd(IN value)
org.apache.flink.api.common.state.v2.StateFuture<Void>	asyncMergeNamespaces(N target, Collection<N> sources)	Merges the state of the current key for the given source namespaces into the state of the target namespace.
SYNCOUT	get()
void	mergeNamespaces(N target, Collection<N> sources)	Merges the state of the current key for the given source namespaces into the state of the target namespace.

Methods inherited from class org.apache.flink.runtime.state.v2.adaptor.StateAdaptor

asyncClear, clear, setCurrentNamespace

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.AppendingState

asyncGet

Methods inherited from interface org.apache.flink.runtime.state.v2.internal.InternalPartitionedState

setCurrentNamespace

Methods inherited from interface org.apache.flink.api.common.state.v2.State

asyncClear, clear

Constructor Detail

MergingStateAdaptor

public MergingStateAdaptor(InternalMergingState<K,N,IN,ACC,SYNCOUT> mergingState)

Method Detail

asyncMergeNamespaces

public org.apache.flink.api.common.state.v2.StateFuture<Void> asyncMergeNamespaces(N target,
                                                                                   Collection<N> sources)

Description copied from interface: InternalMergingState

Merges the state of the current key for the given source namespaces into the state of the target namespace.

Specified by:

asyncMergeNamespaces in interface InternalMergingState<K,N,IN,ACC,OUT,SYNCOUT>

Parameters:

target - The target namespace where the merged state should be stored.

sources - The source namespaces whose state should be merged.

mergeNamespaces

public void mergeNamespaces(N target,
                            Collection<N> sources)

Description copied from interface: InternalMergingState

Merges the state of the current key for the given source namespaces into the state of the target namespace.

Specified by:

mergeNamespaces in interface InternalMergingState<K,N,IN,ACC,OUT,SYNCOUT>

Parameters:

target - The target namespace where the merged state should be stored.

sources - The source namespaces whose state should be merged.

get

public SYNCOUT get()

Specified by:

get in interface org.apache.flink.api.common.state.v2.AppendingState<K,N,IN>

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<K,N,IN>

add

public void add(IN value)

Specified by:

add in interface org.apache.flink.api.common.state.v2.AppendingState<K,N,IN>