code: @Override
      public Object readValue(final Attribute _attribute,
                              final List<Object> _objectList)
          throws EFapsException
      {
          Object ret = null;
          if (_objectList.size() < 1) {
              ret = null;
          } else if (_objectList.size() > 1) {
              final List<String> list = new ArrayList<String>();
              for (final Object object : _objectList) {
                  list.add(object == null ? "" : object.toString().trim());
              }
              ret = list;
          } else {
              final Object object = _objectList.get(0);
              ret = object == null ? "" : object.toString().trim();
          }
          return ret;
      }
docs: {@inheritDoc}