org.apache.flink.runtime.state.memory

Class MemListState<K,N,V>

java.lang.Object

org.apache.flink.runtime.state.AbstractHeapState<K,N,SV,S,SD,MemoryStateBackend>

org.apache.flink.runtime.state.memory.AbstractMemState<K,N,ArrayList<V>,org.apache.flink.api.common.state.ListState<V>,org.apache.flink.api.common.state.ListStateDescriptor<V>>

org.apache.flink.runtime.state.memory.MemListState<K,N,V>

Type Parameters:

K - The type of the key.

N - The type of the namespace.

V - The type of the values in the list state.

All Implemented Interfaces:

org.apache.flink.api.common.state.ListState<V>, org.apache.flink.api.common.state.MergingState<V,Iterable<V>>, org.apache.flink.api.common.state.State, KvState<K,N,org.apache.flink.api.common.state.ListState<V>,org.apache.flink.api.common.state.ListStateDescriptor<V>,MemoryStateBackend>

public class MemListState<K,N,V>
extends AbstractMemState<K,N,ArrayList<V>,org.apache.flink.api.common.state.ListState<V>,org.apache.flink.api.common.state.ListStateDescriptor<V>>
implements org.apache.flink.api.common.state.ListState<V>

Heap-backed partitioned ListState that is snapshotted into a serialized memory copy.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MemListState.Snapshot<K,N,V>

Field Summary

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

currentKey, currentNamespace, currentNSState, keySerializer, namespaceSerializer, state, stateDesc, stateSerializer

Constructor Summary

Constructors

Constructor and Description
MemListState(org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer, org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer, org.apache.flink.api.common.state.ListStateDescriptor<V> stateDesc)
MemListState(org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer, org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer, org.apache.flink.api.common.state.ListStateDescriptor<V> stateDesc, HashMap<N,Map<K,ArrayList<V>>> state)

Method Summary

Modifier and Type	Method and Description
void	add(V value)
KvStateSnapshot<K,N,org.apache.flink.api.common.state.ListState<V>,org.apache.flink.api.common.state.ListStateDescriptor<V>,MemoryStateBackend>	createHeapSnapshot(byte[] bytes)
Iterable<V>	get()

Methods inherited from class org.apache.flink.runtime.state.memory.AbstractMemState

snapshot

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

clear, dispose, getKeySerializer, getNamespaceSerializer, setCurrentKey, setCurrentNamespace, size

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.State

clear

Constructor Detail

MemListState

public MemListState(org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer,
                    org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer,
                    org.apache.flink.api.common.state.ListStateDescriptor<V> stateDesc)

MemListState

public MemListState(org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer,
                    org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer,
                    org.apache.flink.api.common.state.ListStateDescriptor<V> stateDesc,
                    HashMap<N,Map<K,ArrayList<V>>> state)

Method Detail

get

public Iterable<V> get()

Specified by:

get in interface org.apache.flink.api.common.state.MergingState<V,Iterable<V>>

add

public void add(V value)

Specified by:

add in interface org.apache.flink.api.common.state.MergingState<V,Iterable<V>>

createHeapSnapshot

public KvStateSnapshot<K,N,org.apache.flink.api.common.state.ListState<V>,org.apache.flink.api.common.state.ListStateDescriptor<V>,MemoryStateBackend> createHeapSnapshot(byte[] bytes)

Specified by:

createHeapSnapshot in class AbstractMemState<K,N,ArrayList<V>,org.apache.flink.api.common.state.ListState<V>,org.apache.flink.api.common.state.ListStateDescriptor<V>>