| /******************************************************************************* |
| * Copyright (c) 2005 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| /* |
| * $$RCSfile: WorkspaceResourceNotifier.java,v $$ |
| * $$Revision: 1.1 $$ $$Date: 2005/01/07 20:19:23 $$ |
| */ |
| package org.eclipse.jem.internal.util.emf.workbench; |
| |
| |
| import org.eclipse.emf.common.notify.Adapter; |
| import org.eclipse.emf.common.notify.Notification; |
| import org.eclipse.emf.common.notify.impl.AdapterImpl; |
| import org.eclipse.emf.common.notify.impl.NotifierImpl; |
| |
| import org.eclipse.jem.util.emf.workbench.ProjectResourceSet; |
| |
| /** |
| * This class is used to capture all ADD and REMOVE notifications from each ProjectResourceSet |
| * and forward it on to any interrested listeners. This is to allow you to listen to one object |
| * to gain all ADD and REMOVE notifications for each ResourceSet within the system. |
| */ |
| public class WorkspaceResourceNotifier extends NotifierImpl { |
| protected Adapter projectAdapter = new WorkspaceResourceCacheAdapter(); |
| |
| class WorkspaceResourceCacheAdapter extends AdapterImpl { |
| /** |
| * Forward ADD and REMOVE notification. |
| */ |
| public void notifyChanged(Notification msg) { |
| switch (msg.getEventType()) { |
| case Notification.ADD : |
| case Notification.ADD_MANY : |
| case Notification.REMOVE : |
| case Notification.REMOVE_MANY : |
| eNotify(msg); |
| break; |
| } |
| } |
| } |
| |
| /** |
| * Constructor for WorkspaceResourceCache. |
| */ |
| public WorkspaceResourceNotifier() { |
| super(); |
| } |
| |
| /** |
| * Begin listening to a ProjectResourceSet. |
| */ |
| public void beginListening(ProjectResourceSet aResourceSet) { |
| if (aResourceSet != null) { |
| if (aResourceSet.eAdapters() == null || |
| !aResourceSet.eAdapters().contains(projectAdapter)) |
| aResourceSet.eAdapters().add(projectAdapter); |
| } |
| } |
| /** |
| * Stop listening to a ProjectResourceSet. |
| */ |
| public void stopListening(ProjectResourceSet aResourceSet) { |
| if (aResourceSet != null) |
| aResourceSet.eAdapters().remove(projectAdapter); |
| } |
| } |