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.
EJBPost Create is called immidiately after the create method is called, one example i can give you is that suppose in a CMP the user passes some variables which will add a row to the database, but based on some logic you want to modify the data or say call some other bean, then you can do that in post create as you wont be allowed to do it in create.I personally havent had the need to use postCreate in my projects till date. Hope this helps. Cheers.. Daman