docs: public final Object getSimpleId(final Class<?> pFieldType,
      final IRecordSet<RS> pFrom, final String pColumnAlias) throws Exception {
      if (Integer.class == pFieldType) {
        return pFrom.getInteger(pColumnAlias);
      } else if (Long.class == pFieldType) {
        return pFrom.getLong(pColumnAlias);
      } else if (String.class == pFieldType) {
        return pFrom.getString(pColumnAlias);
      } else {
        String msg =
          "There is no rule to get column ID-able "
            + pColumnAlias + " of " + pFieldType;
        throw new ExceptionWithCode(ExceptionWithCode.NOT_YET_IMPLEMENTED,
          msg);
      }
    }