PropertyBean.java example

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freemind-mmx-master
/*FreeMind - A Program for creating and viewing Mindmaps
 *Copyright (C) 2000-2006  Joerg Mueller, Daniel Polansky, Christian Foltin and others.
 *
 *See COPYING for Details
 *
 *This program is free software; you can redistribute it and/or
 *modify it under the terms of the GNU General Public License
 *as published by the Free Software Foundation; either version 2
 *of the License, or (at your option) any later version.
 *
 *This program 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 General Public License for more details.
 *
 *You should have received a copy of the GNU General Public License
 *along with this program; if not, write to the Free Software
 *Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * Created on 25.02.2006
 */
/*$Id: PropertyBean.java,v 1.1.2.2 2006/02/28 18:56:50 christianfoltin Exp $*/
package freemind.common;

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.Iterator;
import java.util.Vector;

public abstract class PropertyBean {

	private Vector mPropertyChangeListeners = new Vector();

	/** The key of the property. */
	public abstract String getLabel();

	public abstract void setValue(String value);

	public abstract String getValue();

	public void addPropertyChangeListener(PropertyChangeListener listener) {
		mPropertyChangeListeners.add(listener);
	}

	public void removePropertyChangeListener(PropertyChangeListener listener) {
		mPropertyChangeListeners.remove(listener);
	}

	protected void firePropertyChangeEvent() {
		PropertyChangeEvent evt = new PropertyChangeEvent(this, getLabel(),
				null, getValue());
		for (Iterator i = mPropertyChangeListeners.iterator(); i.hasNext();) {
			PropertyChangeListener listener = (PropertyChangeListener) i.next();
			listener.propertyChange(evt);
		}
	}
}