| /******************************************************************************* |
| * Copyright (c) 2004, 2006 Sybase, Inc. and others. |
| * |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Sybase, Inc. - initial API and implementation |
| *******************************************************************************/ |
| |
| |
| package org.eclipse.jst.jsf.facesconfig.ui.pageflow.command; |
| |
| /** |
| * Delete a connection. |
| * |
| * @author hmeng |
| * |
| */ |
| public class DeleteConnectionCommand extends ConnectionCommand { |
| |
| public boolean canExecute() { |
| return link != null; |
| } |
| |
| protected void doExecute() { |
| // It is a delete connection command |
| if (link != null) { |
| link.setSource(null); |
| link.setTarget(null); |
| oldSource.getPageflow().getLinks().remove(link); |
| link.eAdapters().clear(); |
| } |
| } |
| |
| public void undo() { |
| // It is a delete connection command |
| if (canExecute()) { |
| link.setSource(oldSource); |
| link.setTarget(oldTarget); |
| oldSource.getPageflow().getLinks().add(link); |
| } |
| } |
| |
| } |