/* * GeoTools - The Open Source Java GIS Toolkit * http://geotools.org * * (C) 2002-2008, Open Source Geospatial Foundation (OSGeo) * * 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; * version 2.1 of the License. * * 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. */ package org.geotools.graph.structure; /** * An interface in which to implement a visitor pattern with components of a * graph. * * @author Justin Deoliveira, Refractions Research Inc, jdeolive@refractions.net * * * @source $URL$ */ public interface GraphVisitor { /** * Presents the visitor with the component to visit. * * @param component The component being visited. * * @return An integer signal value back to the caller. */ public int visit(Graphable component); }