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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Design
We will put a message-driven bean (MDB) called Transfer in front of the Banking session bean (facade) as an asynchronous entry point to the same business logic (Figure 16-1).
Figure 16-1. MDB design overview
To let the Transfer distinguish between the different methods that it can process, we send a JMS string property along with the message.
For our example, we implement only the transfer method. This method requires three parameters (fromAccount, toAccount, and amount) that we package into a TransferDataObject, which is a serializable JavaBean.
We put the TransferDataObject into a JMS message and put the message on the queue that the ...
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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.