javax.cache.event

Class CacheEntryEvent<K,V>

java.lang.Object

java.util.EventObject

javax.cache.event.CacheEntryEvent<K,V>

Type Parameters:

K - the type of key

V - the type of value

All Implemented Interfaces:

Serializable, Cache.Entry<K,V>

public abstract class CacheEntryEvent<K,V>
extends EventObject
implements Cache.Entry<K,V>

A Cache entry event base class.

Since:

1.0

Author:

Greg Luck

See Also:

Serialized Form

Field Summary

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor and Description
CacheEntryEvent(Cache source, EventType eventType) Constructs a cache entry event from a given cache as source

Method Summary

Methods

Modifier and Type	Method and Description
EventType	getEventType() Gets the event type of this event
abstract V	getOldValue() Returns the previous value, that of which existed prior to the modification of the Entry value.
Cache	getSource()
abstract boolean	isOldValueAvailable() Whether the old value is available.

Methods inherited from class java.util.EventObject

toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.cache.Cache.Entry

getKey, getValue, unwrap

Constructor Detail

CacheEntryEvent

public CacheEntryEvent(Cache source,
               EventType eventType)

Constructs a cache entry event from a given cache as source

Parameters:

source - the cache that originated the event

Method Detail

getSource

public final Cache getSource()

Overrides:

getSource in class EventObject

getOldValue

public abstract V getOldValue()

Returns the previous value, that of which existed prior to the modification of the Entry value.

Returns:

the previous value or null if there was no previous value

isOldValueAvailable

public abstract boolean isOldValueAvailable()

Whether the old value is available.

Returns:

true if the old value is populated

getEventType

public final EventType getEventType()

Gets the event type of this event

Returns:

the event type.