org.eclipse.osbp.runtime.emf/src/org/eclipse/osbp/runtime/emf/edit/commands/ChangeCommand.java

/**
 *                                                                            
 *  Copyright (c) 2011, 2016 - Loetz GmbH&Co.KG (69115 Heidelberg, Germany) 
 *                                                                            
 *  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:                                                      
 * 	   Christophe Loetz (Loetz GmbH&Co.KG) - initial implementation
 * 
 */
 package org.eclipse.osbp.runtime.emf.edit.commands;

import org.eclipse.emf.common.command.AbstractCommand;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.osbp.runtime.emf.change.ChangedRecorder;

/**
 * Uses the {@link ChangeCommand} to record notifications.
 */
public abstract class ChangeCommand extends AbstractCommand {

	private Resource resource;
	private ChangedRecorder recorder;

	public ChangeCommand(String name, Resource resource) {
		super(name);
		this.resource = resource;
	}

	@Override
	public void execute() {
		recorder.start();

		doExecute();

		recorder.stop();
	}
	
	/**
	 * Execute your operations.
	 */
	protected abstract void doExecute();

	@Override
	public void redo() {
		recorder.redo();
	}

	@Override
	protected boolean prepare() {
		recorder = new ChangedRecorder(resource);
		return true;
	}

	@Override
	public void undo() {
		recorder.undo();
	}

	@Override
	public boolean canUndo() {
		return super.canUndo();
	}

}