[Javamatch-cvs] javamatch/src/net/sourceforge/javamatch/engine MatchListener.java,NONE,1.1

[Walter v. I. <it...@us...>]

Update of /cvsroot/javamatch/javamatch/src/net/sourceforge/javamatch/engine
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv17129

Added Files:
	MatchListener.java 
Log Message:
Add listener mechanism for query started / finished callbacks

--- NEW FILE: MatchListener.java ---
/* JavaMatch: Matching engine for Java runtime data structures
 * Copyright (C) 2004 Walter van Iterson
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package net.sourceforge.javamatch.engine;

import net.sourceforge.javamatch.query.*;

/**
 * Interface MatchListener is implemented by classes that want to be notified 
 * of events during the matching process. A MatchListener should be registered
 * with the @link MatchEngine, to receive its notifications
 */
public interface MatchListener {
	/**
	 * Called before the match engine starts executing a match query
	 * @param query the query that is about to be executed
	 */
	public void matchQueryStarted(MatchQuery query);

	/**
	 * Called after a match query has completed, just before returning the query
	 * execution results
	 * @param query the query that has been executed
	 * @param result the result of the matching process
	 */
	public void matchQueryFinished(MatchQuery query, MatchResult result);
}