/* * The JTS Topology Suite is a collection of Java classes that * implement the fundamental operations required to validate a given * geo-spatial data set to a known topological specification. * * Copyright (C) 2001 Vivid Solutions * * 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 * * For more information, contact: * * Vivid Solutions * Suite #1A * 2328 Government Street * Victoria BC V8T 5G5 * Canada * * (250)385-6040 * www.vividsolutions.com */ package com.vividsolutions.jts.geom; /** * <code>Geometry</code> classes support the concept of applying * a <code>GeometryComponentFilter</code> * filter to the <code>Geometry</code>. * The filter is applied to every component of the <code>Geometry</code> * which is itself a <code>Geometry</code> * and which does not itself contain any components. * (For instance, all the {@link LinearRing}s in {@link Polygon}s are visited, * but in a {@link MultiPolygon} the {@link Polygon}s themselves are not visited.) * Thus the only classes of Geometry which must be * handled as arguments to {@link #filter} * are {@link LineString}s, {@link LinearRing}s and {@link Point}s. * <p> * A <code>GeometryComponentFilter</code> filter can either * record information fragment_about the <code>Geometry</code> * or change the <code>Geometry</code> in some way. * <code>GeometryComponentFilter</code> * is an example of the Gang-of-Four Visitor pattern. * *@version 1.7 */ public interface GeometryComponentFilter { /** * Performs an operation with or on <code>geom</code>. * *@param geom a <code>Geometry</code> to which the filter is applied. */ void filter(Geometry geom); }