Jeremy

public ExamplePage() {
  IModel<? extends List<? extends String>> model = getSomeModel();
  final ListView<String> lv = new ListView<String>("listview", model) {
       @Override
       protected void populateItem(ListItem<String> item) {
            item.add(new Label("name", item.getModel()));
       }
  };
  final IBehavior repaintBehavior = new AbstractDefaultAjaxBehavior() {
       @Override
       protected void respond(AjaxRequestTarget target) {
            // this repaints the list view
            // this requires your model to always get the most
            // up-to-date list
            target.addComponent(lv);
       }

       @Override
       public void renderHead(IHeaderResponse response) {
            CharSequence callback = getCallbackScript();
            response.renderJavascript("function uploadCompleted() { " + callback + "}",
                 "customUploadCompleted");
       }
  };
}