/**
  * @param WeLearn_DTO_IDTO $dto
  * @return boolean
  */
 public function _adicionar(WeLearn_DTO_IDTO &$dto)
 {
     $UUID = UUID::mint();
     $enqueteUUID = CassandraUtil::import($dto->getEnqueteId());
     $dto->setId($UUID->string);
     $this->_cf->insert($UUID->bytes, $dto->toCassandra());
     $this->_alternativaPorEnqueteCF->insert($enqueteUUID->bytes, array($UUID->bytes => ''));
     $dto->setPersistido(true);
 }