NodeDeleteCommand.java

/*
 * JBoss, Home of Professional Open Source
 * Copyright 2005, JBoss Inc., and individual contributors as indicated
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jbpm.gd.jpdl.command;

import org.jbpm.gd.common.command.AbstractEdgeDeleteCommand;
import org.jbpm.gd.common.command.AbstractNodeDeleteCommand;
import org.jbpm.gd.common.model.SemanticElement;
import org.jbpm.gd.jpdl.model.NodeElement;
import org.jbpm.gd.jpdl.model.NodeElementContainer;
import org.jbpm.gd.jpdl.model.ProcessDefinition;
import org.jbpm.gd.jpdl.model.StartState;


public class NodeDeleteCommand extends AbstractNodeDeleteCommand {

	protected void doAdd() {
		SemanticElement toAdd = node.getSemanticElement();
		NodeElementContainer nodeElementContainer = (NodeElementContainer)parent.getSemanticElement();
		if (toAdd instanceof StartState) {
			((ProcessDefinition)nodeElementContainer).addStartState((StartState)toAdd);
		} else {
			nodeElementContainer.addNodeElement((NodeElement)toAdd);
		}
	}
	
	protected void doRemove() {
		SemanticElement toRemove = node.getSemanticElement();
		NodeElementContainer nodeElementContainer = (NodeElementContainer)parent.getSemanticElement();
		if (toRemove instanceof StartState) {
			((ProcessDefinition)nodeElementContainer).removeStartState((StartState)toRemove);
		} else {
			nodeElementContainer.removeNodeElement((NodeElement)toRemove);
		}
	}

	protected AbstractEdgeDeleteCommand createEdgeDeleteCommand() {
		return new EdgeDeleteCommand();
	}
		
}