docs: public int doMove(int iRelPosition) throws DBException
      {
          Object objData = m_pTable.move(iRelPosition, this);
          if (objData instanceof BaseBuffer)
          {
              this.setDataSource(objData);
              return Constants.NORMAL_RETURN;   // Normal return
          }
          else if (objData instanceof Number)
              return ((Number)objData).intValue();    // Usually EOF
          else
              return Constants.ERROR_RETURN;  // Never
      }