December 2002
Intermediate to advanced
1050 pages
24h 49m
English
Content preview from J2EE™ and Beyond: Design, Develop, and Deploy World-Class Java™ SoftwareBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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EJB Roles
The EJB specification defines six roles for EJB development. As with other parts of the EJB specification, there was a distinct effort to make it possible to provide code reuse, portability, and interoperability with both existing and future technologies. To that end, these roles define responsibilities and input and output work units. In practice, these roles may be combined, and one individual or group could take on the work of several roles (in fact, that is usually the case). These roles are as follows.
bean provider
application assembler
deployer
EJB container provider
EJB server provider
system administrator
The bean provider creates the constituent class and interface files required to create one or more EJB components. The output, ...
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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.