org.apache.flink.table.runtime.dataview

Class PerKeyStateDataViewStore

java.lang.Object

org.apache.flink.table.runtime.dataview.PerKeyStateDataViewStore

All Implemented Interfaces:

StateDataViewStore

@Internal
public final class PerKeyStateDataViewStore
extends Object
implements StateDataViewStore

Default implementation of StateDataViewStore that currently forwards state registration to a RuntimeContext.

Constructor Summary

Constructors

Constructor and Description
PerKeyStateDataViewStore(org.apache.flink.api.common.functions.RuntimeContext ctx)
PerKeyStateDataViewStore(org.apache.flink.api.common.functions.RuntimeContext ctx, org.apache.flink.api.common.state.StateTtlConfig stateTtlConfig)

Method Summary

Modifier and Type	Method and Description
org.apache.flink.api.common.functions.RuntimeContext	getRuntimeContext()
<N,EE> StateListView<N,EE>	getStateListView(String stateName, org.apache.flink.api.common.typeutils.TypeSerializer<EE> elementSerializer) Creates a state list view.
<N,EK,EV> StateMapView<N,EK,EV>	getStateMapView(String stateName, boolean supportNullKey, org.apache.flink.api.common.typeutils.TypeSerializer<EK> keySerializer, org.apache.flink.api.common.typeutils.TypeSerializer<EV> valueSerializer) Creates a state map view.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PerKeyStateDataViewStore

public PerKeyStateDataViewStore(org.apache.flink.api.common.functions.RuntimeContext ctx)

PerKeyStateDataViewStore

public PerKeyStateDataViewStore(org.apache.flink.api.common.functions.RuntimeContext ctx,
                                org.apache.flink.api.common.state.StateTtlConfig stateTtlConfig)

Method Detail

getStateMapView

public <N,EK,EV> StateMapView<N,EK,EV> getStateMapView(String stateName,
                                                       boolean supportNullKey,
                                                       org.apache.flink.api.common.typeutils.TypeSerializer<EK> keySerializer,
                                                       org.apache.flink.api.common.typeutils.TypeSerializer<EV> valueSerializer)

Description copied from interface: StateDataViewStore

Creates a state map view.

Specified by:

getStateMapView in interface StateDataViewStore

Type Parameters:

N - Type of the namespace

EK - External type of the keys in the map state

EV - External type of the values in the map state

Parameters:

stateName - The name of underlying state of the map view

supportNullKey - Whether the null key should be supported

keySerializer - The key serializer

valueSerializer - The value serializer

Returns:

a keyed map state

getStateListView

public <N,EE> StateListView<N,EE> getStateListView(String stateName,
                                                   org.apache.flink.api.common.typeutils.TypeSerializer<EE> elementSerializer)

Description copied from interface: StateDataViewStore

Creates a state list view.

Specified by:

getStateListView in interface StateDataViewStore

Type Parameters:

N - Type of the namespace

EE - External type of the elements in the list state

Parameters:

stateName - The name of underlying state of the list view

elementSerializer - The element serializer

Returns:

a keyed list state

getRuntimeContext

public org.apache.flink.api.common.functions.RuntimeContext getRuntimeContext()

Specified by:

getRuntimeContext in interface StateDataViewStore