October 2003
Beginner
734 pages
16h 56m
English
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Who needs EJBMetaData when you’ve got reflection?
Local clients don’t need EJBMetaData!
With the Java reflection API, you can interrogate an object to get all sorts of information about its class. With Remote objects, you don’t have that option, because you can’t get a reference to the class of the Remote object. The only thing you can interrogate on a Remote client are the stub objects, but they can’t tell you anything about the real EJB object or Home object.
So while a Remote home client has to use EJBMetaData (the interface returned from the EJBHome getEJBMetaData() method) to get info, a local client will simply use the Java reflection methods (getClass(), etc.).
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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.