code: void onCategorySelected(String columnId, int row) {
          Integer maxSelections = displayerSettings.isFilterSelfApplyEnabled() ? null : dataSet.getRowCount();
          filterUpdate(columnId, row, maxSelections);
  
          // Update the displayer in order to reflect the current selection
          // (only if not has already been redrawn in the previous filterUpdate() call)
          if (!displayerSettings.isFilterSelfApplyEnabled()) {
              updateVisualization();
          }
      }
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