| /******************************************************************************* |
| * Copyright (c) 2005, 2012 IBM Corporation 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.bpel.ui.commands; |
| |
| import java.util.List; |
| |
| import org.eclipse.bpel.ui.commands.util.AutoUndoCommand; |
| import org.eclipse.emf.ecore.EObject; |
| |
| |
| /** |
| * Subclasses of this command replace a model object in a list with a different model object. |
| * |
| * (For example, ReplacePropertyCommand is used to replace one of the properties in a |
| * CorrelationSet with a different property). |
| */ |
| public abstract class ReplaceInListCommand extends AutoUndoCommand { |
| |
| protected EObject target; |
| protected Object oldElement, newElement; |
| protected int index; |
| |
| public ReplaceInListCommand(EObject target, Object oldElement, Object newElement, String cmdLabel) { |
| super(cmdLabel, target); |
| this.target = target; |
| this.oldElement = oldElement; |
| this.newElement = newElement; |
| } |
| |
| /** |
| * Subclasses should override this to return the intended list. |
| */ |
| protected abstract List getList(); |
| |
| @Override |
| public boolean canDoExecute() { |
| return true; // !getList().contains(newElement) |
| } |
| |
| @Override |
| public void doExecute() { |
| index = getList().indexOf(oldElement); |
| getList().set(index, newElement); |
| } |
| } |