/*
 * 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.revolsys.geometry.model.util;

import com.revolsys.geometry.model.Geometry;

/**
 * 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(final Geometry geom) {
    for (int i = 0; i < geom.getGeometryCount() && !this.isDone; i++) {
      final Geometry element = geom.getGeometry(i);
      if (!element.isGeometryCollection()) {
        visit(element);
        if (isDone()) {
          this.isDone = true;
          return;
        }
      } else {
        applyTo(element);
      }
    }
  }

  protected abstract boolean isDone();

  protected abstract void visit(Geometry element);
}