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org.eclipse.emf.transaction
Class DemultiplexingListener

java.lang.Object
  extended by 

org.eclipse.emf.transaction.ResourceSetListenerImpl
      extended by 
org.eclipse.emf.transaction.DemultiplexingListener
All Implemented Interfaces:
EventListener, ResourceSetListener, ResourceSetListener.Internal

public abstract class DemultiplexingListener
extends ResourceSetListenerImpl

A convenient superclass for post-commit listeners to process Notifications one at a time. This effectively demultiplexes the list of batched notifications.


Nested Class Summary
 
Nested classes/interfaces inherited from interface org.eclipse.emf.transaction. ResourceSetListener
ResourceSetListener.Internal
 
Constructor Summary
DemultiplexingListener ()
          Initializes me with the default filter.
DemultiplexingListener ( NotificationFilter filter)
          Initializes me with the specified filter.
 
Method Summary
protected abstract  void handleNotification ( TransactionalEditingDomain domain, Notification notification)
          Implemented by subclasses to respond to each notification in serial order.
 boolean isPostcommitOnly ()
          I want only post-commit events, not pre-commit events.
 void resourceSetChanged ( ResourceSetChangeEvent event)
          Implements the post-commit callback by processing the event's notifications one by one, delegating to the handleNotification(org.eclipse.emf.transaction.TransactionalEditingDomain, org.eclipse.emf.common.notify.Notification) method.
 
Methods inherited from class org.eclipse.emf.transaction. ResourceSetListenerImpl
getFilter, getTarget, isAggregatePrecommitListener, isPrecommitOnly, setTarget, transactionAboutToCommit, unsetTarget
 
Methods inherited from class java.lang. Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

DemultiplexingListener

public DemultiplexingListener()
Initializes me with the default filter.


DemultiplexingListener

public DemultiplexingListener(
NotificationFilter filter)
Initializes me with the specified filter.

Parameters:
filter - my filter, or null to specify the default
Method Detail

resourceSetChanged

public void resourceSetChanged(
ResourceSetChangeEvent event)
Implements the post-commit callback by processing the event's notifications one by one, delegating to the handleNotification(org.eclipse.emf.transaction.TransactionalEditingDomain, org.eclipse.emf.common.notify.Notification) method.

Specified by:
resourceSetChanged in interface ResourceSetListener
Overrides:
resourceSetChanged in class ResourceSetListenerImpl
Parameters:
event - the event object describing the changes that occurred in the resource set
See Also:
handleNotification(TransactionalEditingDomain, Notification)

handleNotification

protected abstract void handleNotification(
TransactionalEditingDomain domain,
                                           
Notification notification)
Implemented by subclasses to respond to each notification in serial order.

Parameters:
domain - the editing domain from which the notification originated
notification - the notification describing a change in the model
See Also:
resourceSetChanged(ResourceSetChangeEvent)

isPostcommitOnly

public boolean isPostcommitOnly()
I want only post-commit events, not pre-commit events.

Specified by:
isPostcommitOnly in interface ResourceSetListener
Overrides:
isPostcommitOnly in class ResourceSetListenerImpl
Returns:
true if I only am interested in post-commit events; false, otherwise

Copyright 2002, 2007 IBM Corporation and others.
All Rights Reserved.


 
 
  Published under the terms of the Eclipse Public License Version 1.0 ("EPL") Design by Interspire