amar
Joined: 25 Apr 2006
Posts: 179
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 Posted: Fri May 05, 2006 10:15 am Post subject: Delving Into the Enterprise JavaBeans Deployment Descriptor |
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Two major versions of Enterprise JavaBeans (EJB) deployment descriptors are currently in circulation.
The EJB 1.1 deployment descriptor describes the structure and assembly of EJB applications built to the EJB 1.1 specification. The EJB 2.0deployment descriptor adds a number of tags that are necessary to describe the additional features of EJB 2.0 applications. While EJB 2.0-compliant EJB containers are required to support EJB 1.1 applications, EJB containers that haven't been upgraded to support the 2.0 specification won't support EJB 2.0 deployment descriptors.
This article touches on developing EJB applications that conform to the 2.0 specification. Thus, when selecting an EJB container, you should use support for the EJB 2.0 specification as a selection criteria. Leading EJB container vendors — including IBM's WebSpere, BEA's WebLogic, and the open source JBoss Application Server — are good places to start looking.
for read more information:
http://www.dummies.com/WileyCDA/DummiesArticle/id-1484,subcat-PROGRAMMING.html |
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