December 2002
Intermediate to advanced
1050 pages
24h 49m
English
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Session Beans: The MoviesFacadeBean Class
The MoviesFacadeBean class contains a set of business methods for the movies application. Since it is a session bean, it must implement the SessionBean interface. Because of the internal operation of the helper class for the session bean, we need to declare it to be a stateful session bean in the deployment descriptor.
The methods in any class implemented as an EJB can perform a wide range of operations, but for maximum portability, they should not access local resources (disk files, open network connections), should not use threads, and should have serializable arguments if they are going to be exposed to client code by defining the signature in the remote interface. The code for the MoviesFacadeBean ...
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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.