This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
This is the scenario 'm facing, I have different objects that are persisted to the DB.
All these objects are updated by user actions, but not always.
How to know if a particular object is updated by the user or not on the server side? If its not updated theres no need to persist it.
Is having a dirty/update check on the object a solution, on which persistence depends?
You can not be sure if data is actually changed by user on UI or not.
If you don't want to update record if there is no change, then you will have to maintain a copy of original object in session scope, compare the changed object passed from UI with original object in session
and then if there is any change , update the record in database.