org.apache.flink.runtime.state.heap

Class CopyOnWriteStateMap.StateMapEntry<K,N,S>

java.lang.Object

org.apache.flink.runtime.state.heap.CopyOnWriteStateMap.StateMapEntry<K,N,S>

Type Parameters:

K - type of key.

N - type of namespace.

S - type of state.

All Implemented Interfaces:

StateEntry<K,N,S>

Enclosing class:

CopyOnWriteStateMap<K,N,S>

@VisibleForTesting
protected static class CopyOnWriteStateMap.StateMapEntry<K,N,S>
extends Object
implements StateEntry<K,N,S>

One entry in the CopyOnWriteStateMap. This is a triplet of key, namespace, and state. Thereby, key and namespace together serve as a composite key for the state. This class also contains some management meta data for copy-on-write, a pointer to link other CopyOnWriteStateMap.StateMapEntrys to a list, and cached hash code.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flink.runtime.state.StateEntry

StateEntry.SimpleStateEntry<K,N,S>

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
K	getKey() Returns the key of this entry.
N	getNamespace() Returns the namespace of this entry.
S	getState() Returns the state of this entry.
int	hashCode()
void	setState(S value, int mapVersion)
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

setState

public final void setState(@Nullable
                           S value,
                           int mapVersion)

getKey

@Nonnull
public K getKey()

Description copied from interface: StateEntry

Returns the key of this entry.

Specified by:

getKey in interface StateEntry<K,N,S>

getNamespace

@Nonnull
public N getNamespace()

Description copied from interface: StateEntry

Returns the namespace of this entry.

Specified by:

getNamespace in interface StateEntry<K,N,S>

getState

@Nullable
public S getState()

Description copied from interface: StateEntry

Returns the state of this entry.

Specified by:

getState in interface StateEntry<K,N,S>

equals

public final boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public final int hashCode()

Overrides:

hashCode in class Object

toString

public final String toString()

Overrides:

toString in class Object