code: def getFeature(self, compoundId):
          
          featureId = long(compoundId.featureId)
          with self._db as dataSource:
              featureReturned = dataSource.getFeatureById(featureId)
  
          if featureReturned is None:
              raise exceptions.ObjectWithIdNotFoundException(compoundId)
          else:
              gaFeature = self._gaFeatureForFeatureDbRecord(featureReturned)
              return gaFeature
docs: Returns a protocol.Feature object corresponding to a compoundId
          :param compoundId: a datamodel.FeatureCompoundId object
          :return: a Feature object.
          :raises: exceptions.ObjectWithIdNotFoundException if invalid
              compoundId is provided.