code: @Override
      public void setSortDirection(final SortDirection _sortDirection)
      {
          super.setSortDirection(_sortDirection);
          for (final UIStructurBrowser child : this.children) {
              child.setSortDirectionInternal(_sortDirection);
          }
      }
docs: Setter method for instance variable {@link #sortDirection} and for all
  children also.
  
  @param _sortDirection value for instance variable {@link #sortDirection}