April 2003
Intermediate to advanced
750 pages
16h 53m
English
book
EJB 2.0 Development with WebSphere Studio Application Developer
by Ueli Wahli, Wouter Denayer, Lars Schunk, Deborah Shaddon, Martin Weiss
Content preview from EJB 2.0 Development with WebSphere Studio Application Developer
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Cleaning the model
To have a clean and complete model and implementation, we should:
- Remove the create methods from AccountLocalHome, because all accounts should be either checking or savings accounts.
- Remove the setAccountType method from the AccountLocal interface, because the type of an account cannot be changed.
- Remove the setBalance method from the AccountLocal interface, because the balance can only be changed through deposit and withdraw transactions.
This is not necessary for our sample, but should give you ideas for design issues you should think about in a real application.
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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.