getDiagramEditPart().getEditingDomain().addResourceSetListener(new ResourceSetListener() {

	@Override
	public org.eclipse.emf.common.command.Command transactionAboutToCommit(ResourceSetChangeEvent event) throws RollbackException {
		return null;
	}

	@Override
	public void resourceSetChanged(ResourceSetChangeEvent event) {
		for (Iterator iter = event.getNotifications().iterator(); iter.hasNext();) {
			Object object = iter.next();
			if (object instanceof ENotificationImpl) {
				ENotificationImpl notification = (ENotificationImpl) object;
				Object notifier = notification.getNotifier();
				if (notifier instanceof BoundsImpl) {
					BoundsImpl bounds = (BoundsImpl) notifier;
					System.out.println(bounds);
				}
			}
		}
	}
    
    ...
    
});