@Order(30.0)
      public class RadioGroupBox extends AbstractRadioButtonGroup<Long> {

        protected int getConfiguredGridColumnCount() {
          return 1;
        }

        @Override
        protected int getConfiguredGridH() {
          return 3;
        }

        @Override
        protected String getConfiguredLabel() {
          return "Radio group label"; //XXX: use TEXTS.get(..)
        }

        @Order(10.0)
        public class Value1Field extends AbstractRadioButton {

          @Override
          protected String getConfiguredLabel() {
            return "Value1"; //XXX: use TEXTS.get(..)
          }

          @Override
          protected Object getConfiguredRadioValue() {
            return 1L;
          }

          @Override
          protected int getConfiguredGridW() {
            return 1;
          }
        }

        @Order(20.0)
        public class Value2Field extends AbstractRadioButton {
          @Override
          protected int getConfiguredGridW() {
            return 1;
          }

          @Override
          protected String getConfiguredLabel() {
            return "Value2"; //XXX: use TEXTS.get(..)
          }

          @Override
          protected Object getConfiguredRadioValue() {
            return 2L;
          }
        }

        @Order(30.0)
        public class Value3Field extends AbstractRadioButton {
          @Override
          protected int getConfiguredGridW() {
            return 1;
          }

          @Override
          protected String getConfiguredLabel() {
            return "Value3"; //XXX: use TEXTS.get(..)
          }

          @Override
          protected Object getConfiguredRadioValue() {
            return 3L;
          }
        }
      }