code: protected void sortModel()
      {
          setExecutionStatus(UIStructurBrowser.ExecutionStatus.SORT);
          try {
              getObject4Event().executeEvents(EventType.UI_TABLE_EVALUATE, ParameterValues.CLASS, this);
  
              if (getSortDirection() == SortDirection.DESCENDING) {
                  Collections.reverse(this.children);
              }
          } catch (final EFapsException e) {
              throw new RestartResponseException(new ErrorPage(e));
          }
      }
docs: Method to sort the data of this model. It calls an esjp for sorting.