Correct way to obtain AppModule from ManagedBean?

Question

hi,
There are many posts on this forum and others in the net with examples on how to obtain an AppModule from a ManagedBean (some of them uses depecrated methods, like using ValueBinding). But what's the correct way to do so?
Is this the correct one ?
HttpServletRequest request =
     (HttpServletRequest)FacesContext.getCurrentInstance().getExternalContext().getRequest();
HttpSession session = request.getSession(true);
BindingContext ctx = (BindingContext)session.getAttribute("data");
DataControl control = ctx.findDataControl("InstelAMDataControl");
ApplicationModule appModule = (ApplicationModule)control.getDataProvider();
Thanks!
Roger

Answer 1

Roger,
this is one possible way to get the ApplicationModule inside a bean.
you can do this via an EL too
            FacesContext facesContext = FacesContext.getCurrentInstance();
            Application app = facesContext.getApplication();
            ExpressionFactory elFactory = app.getExpressionFactory();
            ELContext elContext = facesContext.getELContext();
            ValueExpression valueExp =  elFactory.createValueExpression(elContext, expression, Object.class);
            ApplicationModule am = (ApplicationModule)  valueExp.getValue("#{data." + YourApplicationModuleName + ".dataProvider}");This is essential the same, but uses an EL to get the data provider.
It's more a philosophical question if there is aright way to do it.
Timo