jrun.jms.core.messagemgr
Interface DestinationCacheEventListener

All Known Implementing Classes:

ConsumerEndpoint, ConsumerManager

public interface DestinationCacheEventListener

A MessageListener responds to events generated by the MessageManager Currently it gets notified when a message is added or removed for a particular destination.

Additionally, the message listener is scoped so that it only receives messages for a particular #Destination

Version:

$Revision: 1.2 $ $Date: 2001/09/03 23:43:18 $

Author:

Jim Alateras

Method Summary

boolean	messageAdded(MessageImpl message) This event is called when a non-persistent message is added to the DestinationCache.
boolean	messageRemoved(MessageImpl message) This event is called when a message is removed from the DestinationCache.
boolean	persistentMessageAdded(MessageImpl message) This event is called when a persistent message is added to the DestinationCache.
boolean	persistentMessageRemoved(MessageImpl message) This event is called when a message is removed from the DestinationCache.

Method Detail

messageAdded

public boolean messageAdded(MessageImpl message)

This event is called when a non-persistent message is added to the DestinationCache.

Parameters:

message - - message added to cache

messageRemoved

public boolean messageRemoved(MessageImpl message)

This event is called when a message is removed from the DestinationCache.

Parameters:

message - - message removed from cache

persistentMessageAdded

public boolean persistentMessageAdded(MessageImpl message)
                               throws PersistenceException

This event is called when a persistent message is added to the DestinationCache.

Parameters:

connection - - the database connection

message - - message added to cache

Throws:

PersistenceException - - if there is a persistence related problem

persistentMessageRemoved

public boolean persistentMessageRemoved(MessageImpl message)
                                 throws PersistenceException

This event is called when a message is removed from the DestinationCache.

Parameters:

connection - - the database connection

message - - message to remove from cache

Throws:

PersistenceException - - if there is a persistence related problem