December 2002
Intermediate to advanced
1050 pages
24h 49m
English
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Types of Entity Beans
As we learned in Chapter 24, “Enterprise JavaBeans: An Introduction,” entity beans manage persistence in one of two ways: bean-managed persistence (BMP) or container-managed Persistence (CMP).
An entity bean that is declared to use CMP allows the container to control persistence, letting the container determine how the runtime content of the bean will be read from or written to the database. With this approach, the developer will not need to provide any code for the persistence. Instead, the application server provides a tool to describe how this persistence is managed. In EJB 1.1, there were some distinct limitations to CMP that limited its applications. In EJB 2.0, these limitations have been largely overcome with the ...
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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.