processPreprocess

[Bryan Ross]

Hi there,

I'm trying to implement some common authentication behaviour.  To do
this, I've implemented my own ActionServlet and overrided the
processPreprocess method.  In this method, I want to check to see if the
user is authenticated.  If they are, the processing should continue as
normal.  If the user is not authenticated, I want to redirect them the
logon page.

How is this accomplihsed within the processPreprocess method?  How do I
change the page that is to be displayed?

Regards,
Bryan