code: public Resourceadapter<Connector<T>> getOrCreateResourceadapter()
     {
        Node node = childNode.getOrCreate("resourceadapter");
        Resourceadapter<Connector<T>> resourceadapter = new ResourceadapterImpl<Connector<T>>(this, "resourceadapter", childNode, node);
        return resourceadapter;
     }
docs: If not already created, a new <code>resourceadapter</code> element with the given value will be created.
  Otherwise, the existing <code>resourceadapter</code> element will be returned.
  @return  a new or existing instance of <code>Resourceadapter<Connector<T>></code>