public function remove($contentId, $versionId = null)
    {
        $doDelete = false;
        $this->dbHandler->beginTransaction();
        // fetch all the words and decrease the object count on all the words
        $wordIDList = $this->searchIndex->getContentObjectWords($contentId);
        if (count($wordIDList) > 0) {
            $this->searchIndex->decrementWordObjectCount($wordIDList);
            $doDelete = true;
        }
        if ($doDelete) {
            $this->searchIndex->deleteWordsWithoutObjects();
            $this->searchIndex->deleteObjectWordsLink($contentId);
        }
        $this->dbHandler->commit();

        return true;
    }