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RDF2go is an implementation-independent Java API with the design goals: portability (hence the name), performance and ease of implementation. This project was started at FZI Forschungszentrum Informatik Karlsruhe, Germany - www.fzi.de

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/**
 * LICENSE INFORMATION
 * 
 * Copyright 2005-2008 by FZI (http://www.fzi.de). Licensed under a BSD license
 * (http://www.opensource.org/licenses/bsd-license.php)  = Max Völkel
 *  = FZI Forschungszentrum Informatik Karlsruhe, Karlsruhe,
 * Germany  = 2010
 * 
 * Further project information at http://semanticweb.org/wiki/RDF2Go
 */

/**
 * BSD Licensed.
 */
package org.ontoware.rdf2go.model;

/**
 * A Model that can notify listeners when triples are added or removed from the
 * model.
 * 
 * Note that not all models support listening, for example a model hosted on a
 * remote server may not support notifications of operations done on the model
 * to remote clients.
 * 
 * Reads from streams and readers are not detectable.
 * 
 * @author sauermann
 * @author voelkel
 */
public interface NotifyingModel {
	
	/**
	 * 
	 * @param listener must not be null; gets notified on model change events
	 * @param pattern all add or remove statement events matching the pattern
	 *            will be send to the listener. Updates are always send.
	 */
	public void addModelChangedListener(ModelChangedListener listener, TriplePattern pattern);
	
	public void addModelChangedListener(ModelChangedListener listener);
	
	public void removeModelChangedListener(ModelChangedListener listener);
	
}