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/*******************************************************************************
 * Copyright (c) 2000, 2003 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.team.tests.ccvs.ui;


/**
 * Abstract listener used for the generic problem of waiting for
 * something to happen and retrieving some related information.
 * e.g. Waiting for a window with a given title to open and getting its handle.
 */
public abstract class Waiter {
	/**
	 * Called when the desired event has occurred.
	 * @param object an object related to the event, type depends on the context
	 * @return true to keep waiting, otherwise false
	 */
	public abstract boolean notify(Object object);
	
	/**
	 * Called after each unsuccessful poll for the event.
	 * @return true to keep waiting, otherwise false
	 */
	public boolean keepWaiting() {
		return true;
	}
}