docs: public boolean doSeek(String strSeekSign) throws DBException
      {
          Object objData = m_pTable.seek(strSeekSign, this);
          if (objData instanceof BaseBuffer)
          {
              this.setDataSource(objData);
              return true;    // Success
          }
          else if (objData instanceof Boolean)
              return ((Boolean)objData).booleanValue();
          else
              return false; // Never
      }