code: @Override
      public Object getValue(final Object _object)
          throws EFapsException
      {
          final StringBuilder bldr = new StringBuilder();
          boolean retNull = false;
          if (_object instanceof Object[]) {
              final Object[] object = (Object[]) _object;
              if (object[0] == null || object[1] == null) {
                  retNull = true;
              } else {
                  bldr.append(object[1]).append(".").append(object[0]);
              }
          } else {
              if (_object == null) {
                  retNull = true;
              } else {
                  bldr.append(this.type.getId()).append(".").append(_object);
              }
          }
          return retNull ? null : bldr.toString();
      }
docs: {@inheritDoc}