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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EJB exception handling
This section describes the basic concepts of exception handling for EJBs. The bean developer must be aware of how different exceptions affect the life cycle of a bean, and when necessary, account for this within the code.
Exceptions allow us to separate error handling code from normal code. We can wrap the code that we expect to execute most of the time with a try, block, and then place error handling code in catch clauses. That is the code that we do not expect to get executed often, if ever.
*New EJB 2.0 - Local exceptions
The exception handling semantics of EJB 2.0 have not changed much since EJB 1.1. The biggest difference in EJB 2.0 exception handling is the introduction of local exceptions for the local component ...
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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.