code: public int doSetData(Object vpData, boolean bDisplayOption, int iMoveMode)
      {
          if ((vpData != null) && (!(vpData instanceof Short)))
              return DBConstants.ERROR_RETURN;
          return super.doSetData(vpData, bDisplayOption, iMoveMode);
      }
docs: Move this physical binary data to this field.
  @param data The physical data to move to this field (must be Short raw data class).
  @param bDisplayOption If true, display after setting the data.
  @param iMoveMode The type of move.
  @return an error code (0 if success).