/**
  * Checks whether or not a given RDFTranslationUnit has the same subject
  * value as the current instance.
  *
  * @access public
  * @author Jerome Bogaerts, <*****@*****.**>
  * @param  RDFTranslationUnit translationUnit
  * @return boolean
  */
 public function hasSameTranslationUnitSubject(tao_helpers_translation_RDFTranslationUnit $translationUnit)
 {
     $returnValue = (bool) false;
     $returnValue = $this->getSubject() == $translationUnit->getSubject();
     return (bool) $returnValue;
 }