net.sf.ehcache.distribution

Class LegacyEventMessage

java.lang.Object

net.sf.ehcache.distribution.EventMessage

net.sf.ehcache.distribution.LegacyEventMessage

All Implemented Interfaces:

Serializable

public class LegacyEventMessage
extends EventMessage

An Event Message, in respect of a particular cache.

The message is Serializable, so that it can be sent across the network.

The value of an Element is referenced with a SoftReference, so that a value will fail to be delivered in preference to an OutOfMemory error.

Version:

$Id: EventMessage.java 2154 2010-04-06 02:45:52Z cdennis $

Author:

Greg Luck

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static int	PUT A put or update event.
static int	REMOVE A remove or invalidate event.
static int	REMOVE_ALL A removeAll, which removes all elements from a cache

Constructor Summary

Constructors

Constructor and Description
LegacyEventMessage(int event, Serializable key, Element element) Full constructor.

Method Summary

Modifier and Type	Method and Description
Element	getElement()
int	getEvent() Gets the event.
boolean	isValid()

Methods inherited from class net.sf.ehcache.distribution.EventMessage

getEhcache, getSerializableKey

Methods inherited from class java.lang.Object

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

Field Detail

PUT

public static final int PUT

A put or update event.

See Also:

Constant Field Values

REMOVE

public static final int REMOVE

A remove or invalidate event.

See Also:

Constant Field Values

REMOVE_ALL

public static final int REMOVE_ALL

A removeAll, which removes all elements from a cache

See Also:

Constant Field Values

Constructor Detail

LegacyEventMessage

public LegacyEventMessage(int event,
                          Serializable key,
                          Element element)

Full constructor.

Parameters:

event -

key -

element -

Method Detail

getEvent

public final int getEvent()

Gets the event.

Returns:

either PUT or REMOVE

getElement

public final Element getElement()

Returns:

the element component of the message. null if a REMOVE event

isValid

public boolean isValid()

Returns:

true if because of SoftReference GC this LegacyEventMessage is no longer valid