[[exo-portal]] How pages are stored in the JCR and what are the nodetypes in used as well as the location in default repository

[<hugues.poisseroux@xxxxxx>]

I search to save my node in my document class in a 
  static public class SaveActionListener extends
EventListener<UIActionTypeForm> {
    public void execute(Event<UIActionTypeForm> event) throws Exception {
}
}

Some one can explain me how do ?
Thanks 
Regards.