code: private void addUoM(final UoM _uom)
      {
          this.uoMs.add(_uom);
          if (_uom.getId() == this.baseUoMId) {
              this.baseUoM = _uom;
          }
      }
docs: Method to add an UoM to this dimension.
  
  @param _uom UoM to add