/** * Create a single instance of the db storage adapter * * @return Tx_PtExtbase_State_Session_Storage_DBAdapter */ public static function getInstance() { if (self::$instance == null) { self::$instance = new Tx_PtExtbase_State_Session_Storage_DBAdapter(); self::$instance->injectStateCache(self::buildStateCache()); self::$instance->setStateHash(self::getStateHash()); self::$instance->init(); } return self::$instance; }