XML : JavaFX - how to save all my textput input to a xml file?

In my application, i have many tabpane. In the first tabpane, i have a graph editor..and in other i have treeview, listview, and many textfields. I would like to save to xml file all data for treeview, listview and Textfield.

For saving the graph i use this method :

  public void loadFromFile(final GraphEditor graphEditor) {        final Scene scene = graphEditor.getView().getScene();        if (scene != null) {            final File file = showFileChooser(scene.getWindow(), false);            if (file != null) {              loadModel(file, graphEditor);          }      }  }    

How can i process for other tabpane to save data ?

Thank you for your help.