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Looking for ejb 3.0
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Vijaishanker bala
Ranch Hand
Joined: Sep 08, 2005
Posts: 82
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Hi,
I plan to make a comeback into J2EE after working 6 months with J2SE and other open source desktop java apis.I would like to know if ejb 3.0 has been released, because I have seen in tutorials for ejb 3.0 by Jboss and Oracle, they include a javax.ejb.* in their import declarations but on suns website i was just able to download specifications/documentations of ejb 3.0. So i would be glad if someone gave me some clues on release of ejb 3.0 and is it better than the older ones and as to where i can get hold of that import ejb api's(if i am not mistaken)
Vijai
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When you say "I wrote a program that crashed Windows," people just stare at you blankly and say "Hey, I got those with the system, for free." <br />Linus Torvalds
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Paul Sturrock
Bartender
Joined: Apr 14, 2004
Posts: 10336
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Its not been released yet. The JCP website it the place to track its progress.
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JavaRanch FAQ HowToAskQuestionsOnJavaRanch
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Dave Salter
Ranch Hand
Joined: Jul 20, 2005
Posts: 292
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From postings I've read, EJB 3.0 is expected to be finalized towards the end of this year.
If you search the JBoss forum, you can see many posts about EJB 3 and whether or not to use it yet.
[ September 28, 2005: Message edited by: Dave Salter ]
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Mike Keith
author
Ranch Hand
Joined: Jul 14, 2005
Posts: 304
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The EJB 3.0 spec is now in public review. Preview implementations are available from Oracle and JBoss. The spec will be final when it gets released as part of Java EE 5 in Q1 of next year, but it will be practically frozen within the next month or two when a proposed final draft becomes available.
I would recommend that you follow the progress of EJB 3.0 from the official Sun site, not from any one vendor site.
The official Sun EJB 3.0 reference implementation is available on the Glassfish site at http://glassfish.dev.java.net and the persistence component being done by Oracle will be there starting next week.
-Mike
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-Mike
Pro JPA 2: Mastering the Java Persistence API
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Vijaishanker bala
Ranch Hand
Joined: Sep 08, 2005
Posts: 82
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Thank you Mike for the information...I guess i will take a look at the glassfish site from the link you provided. I would like to know if the EJB version 2.1 will have any features better than the new version.In other words will the annotations of 3.0 provide the same/more features of the Deployment descriptors of 2.1
Vijai
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Mike Keith
author
Ranch Hand
Joined: Jul 14, 2005
Posts: 304
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Vijai,
The basic rule that we have tried to follow in EJB 3.0 is that you should be able to access the same features both in annotations and XML. There have been some glitches (deployment-level settings are hard to express in metadata and the package-info.java is an abomination that is does more harm than good) but in general this is the case.
As far as the feature set, EJB 3.0 offers way more stuff than EJB 2.1, but at the same time is much easier to use.
Take a look at the some of the tutorials here if you are interested in seeing in more concrete terms how true this is.
-Mike
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subject: Looking for ejb 3.0
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