open fun handleNavigation(: FacesContext, : String, : String): Unit
Handle the navigation request implied by the specified parameters, through delegating to the target bean in the Spring application context.
The target bean needs to extend the JSF NavigationHandler class. If it extends Spring's DecoratingNavigationHandler, the overloaded handleNavigation method with the original NavigationHandler as argument will be used. Else, the standard handleNavigation method will be called.