org.dmd.dmp.server.servlet.base.cache

Class CacheListenerManager

java.lang.Object

org.dmd.dmp.server.servlet.base.cache.CacheListenerManager

public class CacheListenerManager
extends Object

The CacheListenerManager maintains collections of the various types of cache listeners. The manager maintains weak references to the various listeners in order to prevent memory leaks associated with listeners that are no longer active because of things like timed out sessions.

Constructor Summary

Constructors

Constructor and Description
CacheListenerManager()

Method Summary

Modifier and Type	Method and Description
void	addListener(CacheListener listener) Adds a new cache listener.
Collection<CacheListener>	getInterestedListeners(org.dmd.dmp.server.extended.DMPEvent event) Based on the contents of the event, we build a set of listeners that want to be notified.
void	removeAllListeners() Clears all existing listeners.
void	removeListener(CacheListener listener) Removes a cache listener.
void	removeListenersForSession(SessionIF session) Removes all listeners associated with the specified session.

Methods inherited from class java.lang.Object

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

Constructor Detail

CacheListenerManager

public CacheListenerManager()

Method Detail

addListener

public void addListener(CacheListener listener)

Adds a new cache listener.

Parameters:

listener - the listener to be added.

removeAllListeners

public void removeAllListeners()

Clears all existing listeners.

removeListener

public void removeListener(CacheListener listener)

Removes a cache listener.

Parameters:

listener - the listener to be removed.

removeListenersForSession

public void removeListenersForSession(SessionIF session)

Removes all listeners associated with the specified session.

Parameters:

sessionID -

getInterestedListeners

public Collection<CacheListener> getInterestedListeners(org.dmd.dmp.server.extended.DMPEvent event)

Based on the contents of the event, we build a set of listeners that want to be notified.

Parameters:

event - the event that might be of interest.

Returns:

a collection of interested listeners.