/*
 * (c) Copyright IBM Corp. 2000, 2001.
 * All Rights Reserved.
 */
package org.eclipse.compare;

import org.eclipse.jface.util.IPropertyChangeListener;

/**
 * Interface common to all objects that provide a means for registering
 * for property change notification.
 * <p>
 * Clients may implement this interface.
 * </p>
 *
 * @see org.eclipse.jface.util.IPropertyChangeListener
 */
public interface IPropertyChangeNotifier {
	
	/**
	 * Adds a listener for property changes to this notifier.
	 * Has no effect if an identical listener is already registered.
	 *
	 * @param listener a property change listener
	 */
	void addPropertyChangeListener(IPropertyChangeListener listener);
	
	/**
	 * Removes the given content change listener from this notifier.
	 * Has no effect if the identical listener is not registered.
	 *
	 * @param listener a property change listener
	 */
	void removePropertyChangeListener(IPropertyChangeListener listener);
}