April 2002
Beginner to intermediate
1128 pages
26h 33m
English
book
Sams Teach Yourself J2EE™ in 21 Days
by Martin Bond, Dan Haywood, Debbie Law, Andy Longshaw, Peter Roxburgh
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Contexts
Contexts provide a hierarchical structure to JNDI names, and composite names group together related names. The initial context provides a top-level view of the namespace and any sub-contexts reflect the hierarchical composite name structure.
Listing Contexts
The namespace represents contexts as names, and you can look these up just like any other name. You can obtain a listing of the names in a context by using Context.list(). This method provides a list of name and class bindings as a javax.naming.NamingEnumeration, where each element in the enumeration is a javax.naming.NameClassPair object. Listing 3.5 shows a simple program to list the names and classes for the example sams sub context.
Listing 3.5. Full Text of JNDIListSAMS.java ...
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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.