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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Code generation for finder and select methods
When you generate the deployed code, EJB QL statement are converted into SQL. You can find the generated SQL statements for the Account bean in the package itso.bank5.cmp.websphere_deploy.DB2UDBNT_V72_1 and class called AccountFunctionSet. Let’s look at two examples.
Retrieve all accounts
The simple EJB QL statement select object(o) from Account o translates into:
select q1.\"ACCID\", q1.\"BALANCE\", q1.\"INTEREST\", q1.\"ACCTYPE\", q1.\"DISCRIMINATOR\", q1.\"MINAMOUNT\", q1.\"OVERDRAFT\" from ITSO.ACCOUNT q1 where ( ( q1.\"DISCRIMINATOR\" = \'A\') or ( q1.\"DISCRIMINATOR\" = \'S\') or ( q1.\"DISCRIMINATOR\" = \'C\') )
Find the largest account of a customer
The EJB QL statement is:
findlargestAccount(int ...
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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.