Application: gvSIG desktop » gvSIG geoprocess

/*

 * gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2010 Generalitat Valenciana.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program 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 General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 */

package org.gvsig.sextante.app.algorithm.dissolve;

import com.vividsolutions.jts.geom.Geometry;

import org.gvsig.fmap.dal.feature.Feature;

/**

 * Forces to IDissolveCriteria to fetch geometries from 

 * ReadableVectorial (for performance reasons, once a criteria

 * has verified a spatial conditions, it caches IGeometry, to

 * avoid reading them many times)

 * @author azabala

 *

 */

public interface IDissolveRule {

        /**

         * Verifies if the given geometries will be dissolved 

         * @param g1

         * @param g2

         * @param f

         * @return true if the given geometries will be dissolved or false 

         * if not.

         */

        public boolean verifyIfDissolve(Geometry g1, Geometry g2, Feature f1, Feature f2);

        /**

         * Returns true if the selected function is included in the summary

         * @param func

         * @return

         */

        public boolean isFunctionIncluded(String func);

        /**

         * Returns the name of the field for the selected function

         * @return

         */

        public String getFieldName(String func);

        /**

         * Gets the index of the field to apply the dissolve rule

         * @return

         */

        public int getIndexField();

}