code: @Override
      @SuppressWarnings("unchecked")
      public void collectParameters(Object pojo, List<Object> parameters) {
          F facetValue = getFacetValue(pojo);
          if (facetValue == null) {
              parameters.add(nullColumnValue());
          } else {
              parameters.add(toColumnValue(facetValue));
          }
      }
docs: ----------------------------------------------------------------------------------------------------------------------