javax.cache.processor

Interface MutableEntry<K,V>

Type Parameters:

K - the type of key

V - the type of value

All Superinterfaces:

Cache.Entry<K,V>

public interface MutableEntry<K,V>
extends Cache.Entry<K,V>

A mutable representation of a Cache.Entry.

Since:

1.0

Author:

Greg Luck

Method Summary

Methods

Modifier and Type	Method and Description
boolean	exists() Checks for the existence of the entry in the cache
void	remove() Removes the entry from the Cache.
void	setValue(V value) Sets or replaces the value associated with the key If exists() is false and setValue is called then a mapping is added to the cache visible once the EntryProcessor completes.

Methods inherited from interface javax.cache.Cache.Entry

getKey, getValue, unwrap

Method Detail

exists

boolean exists()

Checks for the existence of the entry in the cache

Returns:

true if the entry exists

remove

void remove()

Removes the entry from the Cache.

This has the same semantics as calling Cache.remove(K).

setValue

void setValue(V value)

Sets or replaces the value associated with the key If exists() is false and setValue is called then a mapping is added to the cache visible once the EntryProcessor completes. Moreover a second invocation of exists() will return true.

Parameters:

value - the value to update the entry with

Throws:

ClassCastException - if the implementation supports and is configured to perform runtime-type-checking, and value type is incompatible with that which has been configured for the Cache