code: public void processInputData(PrintWriter out)
          throws DBException
      {
          String strMoveValue = this.getProperty(DBParams.COMMAND);      // Display record
          if (strMoveValue == null)
              strMoveValue = Constants.BLANK;
  
          String strError = this.getTask().getLastError(0);
          if ((strError != null) && (strError.length() > 0))
              strError = strError + " on " + strMoveValue;
          if ((strError != null) && (strError.length() > 0))
          {
              out.println("<span class=\"error\">Error: " + strError + "</span><br />");
              Record record = ((BasePanel)this.getScreenField()).getMainRecord();
              if (record != null)
                  record.setEditMode(Constants.EDIT_NONE);    // Make sure this isn't updated on screen free
          }
          else
          {
              String strMessage = this.getTask().getStatusText(DBConstants.INFORMATION_MESSAGE);
              if (strMessage != null)
                  if (strMoveValue.length() > 0)
                      if ((strMessage.length() > 0) && (!(this.getScreenField() instanceof BaseGridScreen))) // TODO localize
                          out.println("<span class=\"information\">" + strMessage + "</span><br />");
          }
      }
docs: Process all the submitted params.
  @param out The Html output stream.
  @exception DBException File exception.