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    <?php /*-*- mode: php; tab-width:4 -*-*/

      /** java_GlobalRef.php -- a map which keeps a reference to the
       * PHP instances which have been passed to Java.
       *
       * Copyright (C) 2003-2007 Jost Boekemeier
       *
       * This file is part of the PHP/Java Bridge.
       *
       * The PHP/Java Bridge ("the library") 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, or (at your option) any later version.
       *
       * The 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
       * General Public License for more details.
       *
       * You should have received a copy of the GNU General Public License
       * along with the PHP/Java Bridge; see the file COPYING.  If not, write to the
       * Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
       * 02111-1307 USA.
       *
       * Linking this file statically or dynamically with other modules is
       * making a combined work based on this library.  Thus, the terms and
       * conditions of the GNU General Public License cover the whole
       * combination.
       *
       * As a special exception, the copyright holders of this library give you
       * permission to link this library with independent modules to produce an
       * executable, regardless of the license terms of these independent
       * modules, and to copy and distribute the resulting executable under
       * terms of your choice, provided that you also meet, for each linked
       * independent module, the terms and conditions of the license of that
       * module.  An independent module is a module which is not derived from
       * or based on this library.  If you modify this library, you may extend
       * this exception to your version of the library, but you are not
       * obligated to do so.  If you do not wish to do so, delete this
       * exception statement from your version.
       *
       * @author     Jost Boekemeier
       * @license    GPL
       * @link       http://php-java-bridge.sf.net
       */

      /**
       * This class implements a global map which references PHP objects passed to Java
       * In case "java_session()" was called, PHP objects backing the Java proxies are
       * stored in the session allocated from PHP.
       * @access private
       */
    class java_GlobalRef {
      public $map;

      function __construct() {
        $this->map = array();
      }

      function add($object) {
        if(is_null($object)) return 0;
        return array_push($this->map, $object);
      }
      function get($id) {
        if(!$id) return 0;
        return $this->map[--$id];
      }
    }
    ?>