public function setDataDefinition(a\DataDefinition $dd)
 {
     $this->definition_id = $dd->getId();
     $this->definition_path = $dd->getPath();
     return $this;
 }
 public function setDataDefinition(DataDefinition $dd = NULL)
 {
     if (isset($dd)) {
         $this->getProperty()->dataDefinitionId = $dd->getId();
         $this->getProperty()->dataDefinitionPath = $dd->getPath();
     } else {
         $this->getProperty()->dataDefinitionId = NULL;
         $this->getProperty()->dataDefinitionPath = NULL;
     }
     return $this;
 }