UMLInitialValueExpressionModel.java example

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// $Id: UMLInitialValueExpressionModel.java 15604 2008-08-23 14:05:57Z penyaskito $
// Copyright (c) 2008 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,
// SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
// ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
// THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
// SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
// PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
// CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT,
// UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

package org.argouml.core.propertypanels.ui;

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;

import org.argouml.model.Model;
import org.argouml.ui.targetmanager.TargetEvent;
import org.argouml.ui.targetmanager.TargetListener;
import org.argouml.uml.ui.UMLExpressionModel2;

/**
 * @author jrobbins
 * @author jaap.branderhorst
 * @author penyaskito
 */
class UMLInitialValueExpressionModel 
    extends UMLExpressionModel {

    
    
    public UMLInitialValueExpressionModel(Object target) {
        super(target, "initial value");
    }

    /**
     * @return
     * @see org.argouml.uml.ui.UMLExpressionModel2#getExpression()
     */
    @Override
    public Object getExpression() {        
        Object target = null; //TODO getTarget();
        if (target == null) {
            return null;
        }
        return Model.getFacade().getInitialValue(target);
    }

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

    /**
     * @param expr
     * @see org.argouml.uml.ui.UMLExpressionModel2#setExpression(java.lang.Object)
     */
    @Override
    public void setExpression(Object expression) {
        Object target = null; // TODO  getTarget();
        Model.getCoreHelper().setInitialValue(target, expression);
    }
}