code: @Override
      public final Class<T> returnedClass() {
          @SuppressWarnings("unchecked")Class<T> result = (Class<T>) TypeHelper.getTypeArguments(AbstractColumnMapper.class, getClass()).get(0);
          return result;
      }
docs: /* (non-Javadoc)
  @see org.jadira.usertype.dateandtime.shared.spi.ColumnMapper#returnedClass()