protected function acquireItem($key, $index = false)
    {
        $retval = false;

        $nb_engine = CNabuEngine::getEngine();
        if ($nb_engine->isMainDBAvailable()) {
            $item = new CNabuModuleMorph($key);
            if ($item->isFetched()) {
                $retval = $item;
            }
        }

        return $retval;
    }