October 2003
Beginner
734 pages
16h 56m
English
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Entity beans have ejbLoad() to stay synchronized, even if the transaction rolls back.
Client calls methods on the bean, that change the bean’s internal state.
Bean has a problem and can’t commit the transaction. But now that leaves the bean out of sync with the database. The bean’s limit state is 420, but the limit in the database is 343, exactly where it was before the transaction began.
Container simply does a new load on the bean, to refresh it with the original data from the database.
Bean is happy, and now all of its persistent state matches the entity’s data in the database.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.