<?php
/**
 * ---------------------------------------------------------------------
 * GLPI - Gestionnaire Libre de Parc Informatique
 * Copyright (C) 2015-2020 Teclib' and contributors.
 *
 * http://glpi-project.org
 *
 * based on GLPI - Gestionnaire Libre de Parc Informatique
 * Copyright (C) 2003-2014 by the INDEPNET Development Team.
 *
 * ---------------------------------------------------------------------
 *
 * LICENSE
 *
 * This file is part of GLPI.
 *
 * GLPI 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.
 *
 * GLPI 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 GLPI. If not, see <http://www.gnu.org/licenses/>.
 * ---------------------------------------------------------------------
 */

if (!defined('GLPI_ROOT')) {
   die("Sorry. You can't access this file directly");
}

class SingletonRuleList {
   /// Items list
   public $list = [];
   /// Items loaded ?
   public $load = 0;


   /**
    * get a unique instance of a SingletonRuleList for a type of RuleCollection
    *
    * @param $type   type of the Rule listed
    * @param $entity entity where the rule Rule is processed
    *
    * @return unique instance of an object
   **/
   public static function &getInstance($type, $entity) {
      static $instances = [];

      if (!isset($instances[$type][$entity])) {
         $instances[$type][$entity] = new self();
      }
      return $instances[$type][$entity];
   }

}