May 2002
Intermediate to advanced
360 pages
8h 30m
English
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Client Access
With different types of beans, the client access mechanisms and views need to be formalized to reduce complexity and simplify maintenance. Clients can be instances of EJBs or other Web application components such as JSP, Java applets, and so on. To a client, a session bean is a non-persistent enterprise bean that encapsulates business logic, and an entity bean is an object-oriented (Java) representation of different types of persistent data (RDBMS and others).
Every bean has two interfaces that define the client access mechanisms: home and component interfaces. Together, these interfaces define the clients' view of enterprise beans. The bean container provides the implementation of these interfaces, but the container is transparent ...
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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.