code: public List<ModuleType<ApplicationDescriptor>> getAllModule()
     {
        List<ModuleType<ApplicationDescriptor>> list = new ArrayList<ModuleType<ApplicationDescriptor>>();
        List<Node> nodeList = model.get("module");
        for(Node node: nodeList)
        {
           ModuleType<ApplicationDescriptor>  type = new ModuleTypeImpl<ApplicationDescriptor>(this, "module", model, node);
           list.add(type);
        }
        return list;
     }
docs: Returns all <code>module</code> elements
  @return list of <code>module</code>