Directory-enabling apps with JNDI
 
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We overlooked a milestone last month when Sun released a new beta implementation of the file system service provider for Version 1.2 of the Java Naming and Directory Interface.
Not that the provider is big news on its own, but it does give me the opportunity to mention JNDI - something I should have done quite some time ago, since it's a technology which should be used to directory-enable applications. In this case, these are Java applications used primarily with Web browsers but also available for use on any platform (Windows desktop, NetWare servers, etc.) supporting a Java virtual machine.
If you dismissed JNDI Version 1 or 1.1 because - while potentially very good - it just didn't do much, you should take a look at 1.2. Among the new features available are:
- Event Notification: The new javax.naming.event package contains classes and interfaces for supporting event notification in naming and directory services.
- LDAP Version 3 Extensions and Controls: The new javax.naming.ldap is for applications and service providers that deal with LDAP Version 3 extended operations and controls.
- Service Provider Support: New support for object storage, name service federation and environmental properties is available.
There's a bunch more, well beyond the scope of this newsletter. If you do any Web design or application programming and were thinking about Java, it's time to investigate. Download the 1.2 spec and reference implementation here and then go on to JDANCE, the online Java Information Center. Also, check out all that's available from the JNDI area.
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Dave Kearns is a writer and consultant in Silicon Valley. His most recent book is "Peter Norton's Complete Guide to Networks" published by SAMS. Dave's company, Virtual Quill, provides content services to network vendors: books, manuals, white papers, lectures and seminars, marketing, technical marketing and support documents. Virtual Quill provides "words to sell by..." Find out more at Virtual Quill or by e-mail at info@vquill.com
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