AbstractGefGraphModelElement.java

/*******************************************************************************
 *  Copyright (c) 2012 VMware, Inc.
 *  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:
 *      VMware, Inc. - initial API and implementation
 *******************************************************************************/
package org.springframework.ide.eclipse.config.graph.model;

import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import java.io.IOException;
import java.io.ObjectInputStream;

/**
 * @author Leo Dos Santos
 * @author Christian Dupuis
 */
abstract public class AbstractGefGraphModelElement {

	public static final String NAME = "name", //$NON-NLS-1$
			CHILDREN = "children", //$NON-NLS-1$
			INCOMINGS = "incomings", //$NON-NLS-1$
			OUTGOINGS = "outgoings", //$NON-NLS-1$
			LINESTYLE = "linestyle", //$NON-NLS-1$
			BOUNDS = "bounds"; //$NON-NLS-1$

	transient protected PropertyChangeSupport listeners = new PropertyChangeSupport(this);

	static final long serialVersionUID = 1;

	public void addPropertyChangeListener(PropertyChangeListener l) {
		listeners.addPropertyChangeListener(l);
	}

	protected void firePropertyChange(String prop, Object old, Object newValue) {
		listeners.firePropertyChange(prop, old, newValue);
	}

	protected void fireStructureChange(String prop, Object child) {
		listeners.firePropertyChange(prop, null, child);
	}

	private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
		in.defaultReadObject();
		listeners = new PropertyChangeSupport(this);
	}

	public void removePropertyChangeListener(PropertyChangeListener l) {
		listeners.removePropertyChangeListener(l);
	}

}