pgbox2d.java

postGIS是一个能够使用postSQL数据库来管理GIS数据的小程序,充分发挥了该数据库的空间管理功能,非常有用哦

/*
 * PGbox2d.java
 * 
 * PostGIS extension for PostgreSQL JDBC driver - bounding box model
 * 
 * (C) 2004 Paul Ramsey, [e-mail]
 * 
 * (C) 2005 Markus Schaber, [e-mail]
 * 
 * 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.
 * 
 * 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 or visit the web at
 * http://www.gnu.org.
 * 
 * $Id: PGbox2d.java 1622 2005-04-15 14:04:34Z mschaber $
 */

package org.postgis;

import java.sql.SQLException;

public class PGbox2d extends PGboxbase {
    /* JDK 1.5 Serialization */
    private static final long serialVersionUID = 0x100;

    public PGbox2d() {
        super();
    }

    public PGbox2d(Point llb, Point urt) {
        super(llb, urt);
    }

    public PGbox2d(String value) throws SQLException {
        super(value);
    }

    public void setValue(String value) throws SQLException {
        super.setValue(value);

        if (llb.dimension != 2 || urt.dimension != 2) {
            throw new SQLException("PGbox2d is only allowed to have 2 dimensions!");
        }
    }

    public String getPrefix() {
        return "BOX";
    }

    public String getPGtype() {
        return "box2d";
    }

    protected PGboxbase newInstance() {
        return new PGbox2d();
    }
}