code: @Override
      protected void valueCreate(String[] strings, Value value) {
          for (int i = 0; i < strings.length; i++) {
              value.addPrimitiveValue(labels[i], strings[i]);
          }
  
          String[] masters = simpleJoinMap.get(strings[dataJoinNo]);
          if (masters != null) {
              for (int i = 0; i < masterLabels.length; i++) {
                  value.addPrimitiveValue(masterLabels[i], masters[i]);
              }
          }
      }
docs: {@inheritDoc}