/* $Id: UMLExpressionExpressionModel.java 17881 2010-01-12 21:09:28Z linus $
 *****************************************************************************
 * Copyright (c) 2009 Contributors - see below
 * 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:
 *    tfmorris
 *****************************************************************************
 *
 * Some portions of this file was previously release using the BSD License:
 */

// Copyright (c) 2004-2006 The Regents of the University of California. All
// Rights Reserved. Permission to use, copy, modify, and distribute this
// software and its documentation without fee, and without a written
// agreement is hereby granted, provided that the above copyright notice
// and this paragraph appear in all copies.  This software program and
// documentation are copyrighted by The Regents of the University of
// California. The software program and documentation are supplied "AS
// IS", without any accompanying services from The Regents. The Regents
// does not warrant that the operation of the program will be
// uninterrupted or error-free. The end-user understands that the program
// was developed for research purposes and is advised not to rely
// exclusively on the program for any reason.  IN NO EVENT SHALL THE
// UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
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package org.argouml.uml.ui;

import org.argouml.model.Model;
import org.argouml.ui.targetmanager.TargetManager;

/**
 * The model for a UML Expression that is obtained from its "parent"
 * by getExpression - hence: Guard, ChangeEvent, TimeEvent.
 *
 * @author Michiel
 */
public class UMLExpressionExpressionModel extends UMLExpressionModel2 {

    /**
     * The constructor.
     *
     * @param c the container of UML user interface components
     * @param name the name of the property
     */
    public UMLExpressionExpressionModel(UMLUserInterfaceContainer c,
            String name) {
        super(c, name);
    }

    /*
     * @see org.argouml.uml.ui.UMLExpressionModel2#getExpression()
     */
    public Object getExpression() {
        return Model.getFacade().getExpression(
                TargetManager.getInstance().getTarget());
    }

    /*
     * @see org.argouml.uml.ui.UMLExpressionModel2#setExpression(java.lang.Object)
     */
    public void setExpression(Object expr) {
        Model.getStateMachinesHelper()
        	.setExpression(TargetManager.getInstance().getTarget(), expr);
    }

    /*
     * @see org.argouml.uml.ui.UMLExpressionModel2#newExpression()
     */
    public Object newExpression() {
        return Model.getDataTypesFactory().createBooleanExpression("", "");
    }

}