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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];
  }
}
?>