SITools2

 /*******************************************************************************

 * Copyright 2010-2013 CNES - CENTRE NATIONAL d'ETUDES SPATIALES

 *

 * This file is part of SITools2.

 *

 * SITools2 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 3 of the License, or

 * (at your option) any later version.

 *

 * SITools2 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 SITools2.  If not, see <http://www.gnu.org/licenses/>.

 ******************************************************************************/

package fr.ias.sitools.vo.ssa;

/**

 * Chooses the implementation of the SQL request

 * based on the geometry intersection algorithm.

 * @author Jean-Christophe Malapert <jean-christophe.malapert@cnes.fr>

 */

public final class SqlGeometryFactory {

  /**

   * Empty constructor.

   */

  private SqlGeometryFactory() {

  }

  /**

   * Returns the Object responsible of creating the SQL request to send to the server.

   *

   * <p>

   * The supported geometryIntersection is either CENTER or OVERLAPS otherwise

   * an IllegalArgumentException is raised.

   * </p>

   * @param geometryIntersection Geometry Intersection algorithm

   * @return the Object responsible of creating the SQL request to send to the server

   */

  public static AbstractSqlGeometryConstraint create(final String geometryIntersection) {

    AbstractSqlGeometryConstraint result;

    if ("OVERLAPS".equals(geometryIntersection)) {

      result = new OverlapsModeIntersection();

    } else if ("CENTER".equals(geometryIntersection)) {

      result = new CenterModeIntersection();

    } else {

      throw new IllegalArgumentException("geometryMode " + geometryIntersection + " is unknown or not supported");

    }

    return result;

  }

}