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<?php
//  ------------------------------------------------------------------------ //
//                XOOPS - PHP Content Management System                      //
//                    Copyright (c) 2000 XOOPS.org                           //
//                       <http://www.xoops.org/>                             //
//  ------------------------------------------------------------------------ //
//  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.                                      //
//                                                                           //
//  You may not change or alter any portion of this comment or credits       //
//  of supporting developers from this source code or any supporting         //
//  source code which is considered copyrighted (c) material of the          //
//  original comment or credit authors.                                      //
//                                                                           //
//  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 //
//  ------------------------------------------------------------------------ //
// Author: Kazumi Ono (AKA onokazu)                                          //
// URL: http://www.myweb.ne.jp/, http://www.xoops.org/, http://jp.xoops.org/ //
// Project: The XOOPS Project                                                //
// ------------------------------------------------------------------------- //
/**
 * ImpressCMS Database Factory Class
 *
 * @category    ICMS
 * @package     Database
 * @author      Gustavo Pilla  (aka nekro) <nekro@impresscms.org>
 *
 * @copyright   The ImpressCMS Project <http://www.impresscms.org>
 * @license     http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU General Public License (GPL)
 *
 * @version     SVN: $Id: Factory.php 12403 2014-01-26 21:35:08Z skenow $
 */

/**
 * Creates a database connection
 *
 * @since       XOOPS
 * @author      http://www.xoops.org The XOOPS Project
 * @copyright   copyright (c) 2000-2007 XOOPS.org
 */
class icms_db_legacy_Factory extends icms_db_Factory {
    /**
     * Constructor
     *
     * Makes nothing.
     */
    protected function __construct() { /* Empty! */ }

    /**
     * Get a reference to the only instance of database class and connects to DB
     *
     * if the class has not been instantiated yet, this will also take
     * care of that
     *
     * @static
     * @staticvar   object  The only instance of database class
     * @return      object  Reference to the only instance of database class
     */
    static public function &instance() {
        static $instance;
        if (!isset($instance)) {
            $instance = parent::instance();
        }
        return $instance;
    }

    /**
     * Gets a reference to the only instance of database class. Currently
     * only being used within the installer.
     *
     * @static
     * @staticvar   object  The only instance of database class
     * @return      object  Reference to the only instance of database class
     */
    static public function &getDatabase() {
        static $database;
        if (!isset($database)) {
            $database = parent::instance();
        }
        return $database;
    }

    /**
     * Gets the databaseupdater object .
     *
     * @copyright   http://www.impresscms.org/ The ImpressCMS Project
     *
     * @return  object  @link icms_db_legacy_updater_Handler
     * @static
     */
    static public function getDatabaseUpdater() {
        return new icms_db_legacy_updater_Handler();
    }
}