/* Obs.java * * Copyright (c) 1999-2001, Ted Nelson and Tuomas Lukka * * This file is part of Gzz. * * Gzz 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 of the License, or * (at your option) any later version. * * Gzz 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 Gzz; if not, write to the Free * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA * * */ /* * Written by Tuomas Lukka */ package org.fenfire; /** A simple class that observes something. * This class cannot distinguish what caused the event - either * the event has to be filtered prior to this or the whole thing reread * in any case. * @see ObsTrigger * @see Cell * @see Dim */ public interface Obs { String rcsid = "$Id: Obs.java,v 1.1 2003/03/26 23:48:14 mudyc Exp $"; /** Called when something is changed. */ void chg(); }