Java EE (Java Enterprise Edition) General Discussion

Hi!

I have been using Struts for years. I am now looking into JSF. I have
been told by many people who have used JSF that this technology is
basically a replacement for Struts and is likely to replace it
completely soon. From what I have seen so far, JSF provides a very nice and easy way to create UI pages and connect them with the java beans and other business logic components. However, my question is: how do we implement the Action class-like logic (or Controller) in JSF? Do we still need to have a controller if JSP is used to implement the MVC design paradigm?

Thanks.