code: public List<Listener<Listeners<T>>> getAllListener()
     {
        List<Listener<Listeners<T>>> list = new ArrayList<Listener<Listeners<T>>>();
        List<Node> nodeList = childNode.get("listener");
        for(Node node: nodeList)
        {
           Listener<Listeners<T>>  type = new ListenerImpl<Listeners<T>>(this, "listener", childNode, node);
           list.add(type);
        }
        return list;
     }
docs: Returns all <code>listener</code> elements
  @return list of <code>listener</code>