I have a requirement in struts 1.2 framework where i have 50 to 60 fields in my form in which i have to update only 3Fields(which are changed by the user) so when i submit the form only these 3Fields needs to be updated in the database.

How can i identify the 3 changed/modified fields out of 50 fields in the struts ActionForm.
Your suggestions are very mush appreciated.