/*
* 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.util;
import com.vividsolutions.jts.geom.*;
/**
* A visitor to {@link Geometry} componets, which
* allows short-circuiting when a defined condition holds.
*
* @version 1.7
*/
public abstract class ShortCircuitedGeometryVisitor
{
private boolean isDone = false;
public ShortCircuitedGeometryVisitor() {
}
public void applyTo(Geometry geom) {
for (int i = 0; i < geom.getNumGeometries() && ! isDone; i++) {
Geometry element = geom.getGeometryN(i);
if (! (element instanceof GeometryCollection)) {
visit(element);
if (isDone()) {
isDone = true;
return;
}
}
else
applyTo(element);
}
}
protected abstract void visit(Geometry element);
protected abstract boolean isDone();
}