/*
* 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);
}