Dynamic Session Lengths?

[Robert Paris]

Is it possible to change the length of session timeout dynamically for each user based on some data I make up? For example:
1. Anyone logged in as admin, I give a 30 minute timeout on their session
2. Employee logins get 1 hour session timeout
3. Regular users get 10 minute session timeout
How would I do this?

[Anthony Smith]

Each time a user logs on you use:
HttpSession session;
session.setMaxInactiveInterval(60 * 30); //Your length
You just have to pull the actual values based on each user.

[Sat Vus]

Robert,
I suppose if you are using the Server side sessions in which case , you can use the solution as specified by Smith.
If you are using cookies based session - cookie.setMaxAge can be used to manipulate the cookie's (session) Age.