* * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero 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 Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see . */ namespace OCA\user_sql\HashAlgorithm; /** * Singleton pattern trait. * @author Marcin Łojewski */ trait Singleton { private static $instance; final private function __construct() { $this->init(); } protected function init() { } final public static function getInstance() { return isset(static::$instance) ? static::$instance : static::$instance = new static; } final private function __clone() { } }