code: public List<FilterMappingType<WebAppType<T>>> getAllFilterMapping()
     {
        List<FilterMappingType<WebAppType<T>>> list = new ArrayList<FilterMappingType<WebAppType<T>>>();
        List<Node> nodeList = childNode.get("filter-mapping");
        for(Node node: nodeList)
        {
           FilterMappingType<WebAppType<T>>  type = new FilterMappingTypeImpl<WebAppType<T>>(this, "filter-mapping", childNode, node);
           list.add(type);
        }
        return list;
     }
docs: Returns all <code>filter-mapping</code> elements
  @return list of <code>filter-mapping</code>