How to check for user login in a header?

What is a good way to make sure the user has logged in on many web pages? I implement the property and method in the session bean to keep track of whether the user has logged in or not and that's fine. I tried to use a Page Fragment to check if the user is logged in, but Page Fragment does not seem to redirect with getExternalContext().redirect("Login.jsp").
I also tryed to use <jsp:include> to include a header to test for login, but JSF doesn't seem to like me adding that to the page (got error).
Also, is there a good way to prevent the target page to even execute the rowset if the user is not logged in? It seem like the page has to complete all the rowset data binding before being redirected to another page, even if I put the redirection as part of the page initialization. This is difficult because I can't expect all the pages to have query result when the user is not even logged in.
This is very basic web application function but it seems so hard to do with Studio Creator.

One thought though, when I was playing around with that solution I noticed that everything gets filtered.
i.e. images, so maybe you chould place some thing on the page (image) and when it comes through .. do something. I know its not quite as good, because your back to having to put something on each page (or restricted pages).
The images won't be wrong, unlike the URL .. maybe not images maybe something else. good luck
Jonathan

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How to check for user login in a header?

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