org.apache.flink.runtime.state.heap

Class HeapValueState<K,N,V>

java.lang.Object

org.apache.flink.runtime.state.heap.AbstractHeapState<K,N,V,org.apache.flink.api.common.state.ValueState<V>>

org.apache.flink.runtime.state.heap.HeapValueState<K,N,V>

Type Parameters:

K - The type of the key.

N - The type of the namespace.

V - The type of the value.

All Implemented Interfaces:

org.apache.flink.api.common.state.State, org.apache.flink.api.common.state.ValueState<V>, InternalKvState<K,N,V>, InternalValueState<K,N,V>

public class HeapValueState<K,N,V>
extends AbstractHeapState<K,N,V,org.apache.flink.api.common.state.ValueState<V>>
implements InternalValueState<K,N,V>

Heap-backed partitioned ValueState that is snapshotted into files.

Field Summary

Fields inherited from class org.apache.flink.runtime.state.heap.AbstractHeapState

currentNamespace, keySerializer, namespaceSerializer, stateTable, valueSerializer

Constructor Summary

Constructors

Constructor and Description
HeapValueState(StateTable<K,N,V> stateTable, org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer, org.apache.flink.api.common.typeutils.TypeSerializer<V> valueSerializer, org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer, V defaultValue) Creates a new key/value state for the given hash map of key/value pairs.

Method Summary

Modifier and Type	Method and Description
org.apache.flink.api.common.typeutils.TypeSerializer<K>	getKeySerializer() Returns the TypeSerializer for the type of key this state is associated to.
org.apache.flink.api.common.typeutils.TypeSerializer<N>	getNamespaceSerializer() Returns the TypeSerializer for the type of namespace this state is associated to.
org.apache.flink.api.common.typeutils.TypeSerializer<V>	getValueSerializer() Returns the TypeSerializer for the type of value this state holds.
void	update(V value)
V	value()

Methods inherited from class org.apache.flink.runtime.state.heap.AbstractHeapState

clear, getDefaultValue, getSerializedValue, getStateTable, 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.internal.InternalKvState

getSerializedValue, setCurrentNamespace

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

clear

Constructor Detail

HeapValueState

public HeapValueState(StateTable<K,N,V> stateTable,
                      org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer,
                      org.apache.flink.api.common.typeutils.TypeSerializer<V> valueSerializer,
                      org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer,
                      V defaultValue)

Creates a new key/value state for the given hash map of key/value pairs.

Parameters:

stateTable - The state table for which this state is associated to.

keySerializer - The serializer for the keys.

valueSerializer - The serializer for the state.

namespaceSerializer - The serializer for the namespace.

defaultValue - The default value for the state.

Method Detail

getKeySerializer

public org.apache.flink.api.common.typeutils.TypeSerializer<K> getKeySerializer()

Description copied from interface: InternalKvState

Returns the TypeSerializer for the type of key this state is associated to.

Specified by:

getKeySerializer in interface InternalKvState<K,N,V>

getNamespaceSerializer

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

Description copied from interface: InternalKvState

Returns the TypeSerializer for the type of namespace this state is associated to.

Specified by:

getNamespaceSerializer in interface InternalKvState<K,N,V>

getValueSerializer

public org.apache.flink.api.common.typeutils.TypeSerializer<V> getValueSerializer()

Description copied from interface: InternalKvState

Returns the TypeSerializer for the type of value this state holds.

Specified by:

getValueSerializer in interface InternalKvState<K,N,V>

value

public V value()

Specified by:

value in interface org.apache.flink.api.common.state.ValueState<V>

update

public void update(V value)

Specified by:

update in interface org.apache.flink.api.common.state.ValueState<V>