public function synchronize($connectionName)
    {
        $configuration = $this->getConfiguration($connectionName);
        $database = $this->getDatabase($connectionName);

        foreach ($configuration->getVertexes() as $vertex) {
            try {
                $database->query(sprintf('CREATE CLASS %s EXTENDS V',
                    $vertex->getName()
                ));
                $database->query(sprintf('DISPLAY RECORD 0',
                    $vertex->getName()
                ));
                dump($res); die;
            } catch (\Exception $e) {
                if (preg_match(sprintf('/Class %s already exists in current database$/', $vertex->getName()), $e->getMessage())) {
                    continue;
                }

                throw $e;
            }
        }
    }