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

Class AbstractListState<K,N,V>

java.lang.Object

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

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

Type Parameters:

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

V - The type of values kept internally in state.

All Implemented Interfaces:

org.apache.flink.api.common.state.v2.AppendingState<V,org.apache.flink.api.common.state.v2.StateIterator<V>,Iterable<V>>, org.apache.flink.api.common.state.v2.ListState<V>, org.apache.flink.api.common.state.v2.MergingState<V,org.apache.flink.api.common.state.v2.StateIterator<V>,Iterable<V>>, org.apache.flink.api.common.state.v2.State, InternalAppendingState<K,N,V,V,org.apache.flink.api.common.state.v2.StateIterator<V>,Iterable<V>>, InternalKeyedState<K,N,V>, InternalListState<K,N,V>, InternalMergingState<K,N,V,V,org.apache.flink.api.common.state.v2.StateIterator<V>,Iterable<V>>, InternalPartitionedState<N>

public class AbstractListState<K,N,V>
extends AbstractKeyedState<K,N,V>
implements InternalListState<K,N,V>

A default implementation of ListState which delegates all async requests to StateRequestHandler.

Field Summary

Fields inherited from class org.apache.flink.runtime.state.v2.AbstractKeyedState

stateRequestHandler

Constructor Summary

Constructors

Constructor	Description
AbstractListState(StateRequestHandler stateRequestHandler, org.apache.flink.api.common.state.v2.ListStateDescriptor<V> stateDescriptor)

Method Summary

Modifier and Type	Method	Description
void	add(V value)
void	addAll(List<V> values)
org.apache.flink.api.common.state.v2.StateFuture<Void>	asyncAdd(V value)
org.apache.flink.api.common.state.v2.StateFuture<Void>	asyncAddAll(List<V> values)
org.apache.flink.api.common.state.v2.StateFuture<org.apache.flink.api.common.state.v2.StateIterator<V>>	asyncGet()
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.
org.apache.flink.api.common.state.v2.StateFuture<Void>	asyncUpdate(List<V> values)
Iterable<V>	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.
void	update(List<V> values)

Methods inherited from class org.apache.flink.runtime.state.v2.AbstractKeyedState

asyncClear, clear, getStateDescriptor, getStateRequestHandler, getValueSerializer, handleRequest, handleRequestSync, 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.runtime.state.v2.internal.InternalPartitionedState

setCurrentNamespace

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

asyncClear, clear

Constructor Details

AbstractListState

public AbstractListState(StateRequestHandler stateRequestHandler,
 org.apache.flink.api.common.state.v2.ListStateDescriptor<V> stateDescriptor)

Method Details

asyncGet

public org.apache.flink.api.common.state.v2.StateFuture<org.apache.flink.api.common.state.v2.StateIterator<V>> asyncGet()

Specified by:

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

asyncAdd

public org.apache.flink.api.common.state.v2.StateFuture<Void> asyncAdd(V value)

Specified by:

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

asyncUpdate

public org.apache.flink.api.common.state.v2.StateFuture<Void> asyncUpdate(List<V> values)

Specified by:

asyncUpdate in interface org.apache.flink.api.common.state.v2.ListState<K>

asyncAddAll

public org.apache.flink.api.common.state.v2.StateFuture<Void> asyncAddAll(List<V> values)

Specified by:

asyncAddAll in interface org.apache.flink.api.common.state.v2.ListState<K>

get

public Iterable<V> get()

Specified by:

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

add

public void add(V value)

Specified by:

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

update

public void update(List<V> values)

Specified by:

update in interface org.apache.flink.api.common.state.v2.ListState<K>

addAll

public void addAll(List<V> values)

Specified by:

addAll in interface org.apache.flink.api.common.state.v2.ListState<K>

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,V,V,org.apache.flink.api.common.state.v2.StateIterator<V>,Iterable<V>>

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,V,V,org.apache.flink.api.common.state.v2.StateIterator<V>,Iterable<V>>

Parameters:

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

sources - The source namespaces whose state should be merged.