root/tools/routingservice/branches/wrs-2.0/src/util/db/JDBCConnectionPool.java

/*  WRS 2.0
 *  Copyright (C) 2009 Anton Patrushev
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */

package util.db;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

import util.ObjectPool;

public class JDBCConnectionPool extends ObjectPool<Connection> 
{

        public JDBCConnectionPool(String url, String user,
                        String password)
        {
                super(url, user, password);

                try
                {
                        Class.forName("org.postgresql.Driver").newInstance();
                }
                catch (Exception e)
                {
                        e.printStackTrace();
                }

        }

        @Override
        protected Connection create()
        {
                try
                {
                        return (DriverManager.getConnection(url, user, password));
                }
                catch (SQLException e)
                {
                        e.printStackTrace();
                        return (null);
                }
        }

        @Override
        public void expire(Connection o)
        {
                try
                {
                        ((Connection) o).close();
                }
                catch (SQLException e)
                {
                        e.printStackTrace();
                }
        }

        @Override
        public boolean validate(Connection o)
        {
                try
                {
                        return (!((Connection) o).isClosed());
                }
                catch (SQLException e)
                {
                        e.printStackTrace();
                        return (false);
                }
        }

}