public function create()
    {
        /**
         * @var Comment $comment
         */
        $classNamespace = $this->getEntityNamespace();
        $comment = new $classNamespace();
        $comment
            ->setParent(null)
            ->setChildren(new ArrayCollection())
            ->setEnabled(true)
            ->setCreatedAt($this->now());

        return $comment;
    }