While I cannot (yet) give a definitive answer on GWT 2.1, I did go over MVP in my book. I took it down a notch --going for an event bus is overkill, unless you are bent on showing several views of the same data at the same time-- but implemented all the needed classes and methods, and went over debugging too. I included a little problem that usually isn't shown: suppose you develop a widget (in MVP fashion) for, say, picking a country and then picking a state for that country. (The detail, you have to go to the server to get the states.) How do you include
that MVP widget in a MVP form? Where do you initialize it? How do you use it? How do you process its events?
While using frameworks is usually good, you generally find that you must work around (or against!
) it for some things you want to do, and thus I preferred developing my own code, so as to be able to show the inner workings of a MVP application. As soon as I learn more about GWT 2.1, I'll get down to using (and writing about) it.
Thanks for your question!