private function buildEntity()
    {
        $classname = $this->classname;
        if (class_exists($classname) && $this->isRegistryEntity(new $classname())) {
            $this->entity = new $classname();
            $this->buildEntityClass();
        } else {
            $this->entity = new \stdClass();
            $this->buildStdClass();
        }
    }