public static function addPersistence($persistenceId, array $persistenceConf)
    {
        $manager = self::getDefaultManager();
        $configs = $manager->getOption(self::OPTION_PERSISTENCES);
        $configs[$persistenceId] = $persistenceConf;
        $manager->setOption(self::OPTION_PERSISTENCES, $configs);
        
        $manager->getServiceManager()->register(self::SERVICE_ID, $manager);
    }