session variables in struts

[Poorav Chaudhari <pooravc@yahoo.com>]

I am developing a web application using the struts framework on tomcat. Now, I
have one form that spans multiple pages. So to enable free user navigation
between pages (1st to 3rd to 4th to 2nd....) and maintain the form values i
store the form information in a form object with session scope. if the user,
after completing the 4 pages of the form presses save, i save the info into the
database and remove the session attribute from memory. but my problem is what
if the user decides in the middle of filling out the form to go to some other
page, and clicks on one of the other links. Now the session variable is still
in memory without any use for it. one way around this i see is to remove all
session variable my application creates within each action class except for the
ones that are required for that particular page. But this i don't see a
practical or an elegant solution. Can some one please help me with this
problem. suggestions and/or references to sites with helpful info on this will
be greatly appreciated.

Thank you.

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Poorav Chaudhari

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