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EJB Certification (SCBCD/OCPJBCD)
Difference Between Ejb 2 and 3
Joined: Jun 29, 2008
May 30, 2010 07:31:55
Is there a major difference between 2 and 3 versions of
, as a EJB beginner do we recommend to start with a Ejb 2.0 guide like Head first , please advice.
SCJP 1.4,SCWCD5, SCBCD5
Joined: Mar 24, 2008
May 31, 2010 01:37:05
There are significant differences in both but both have same fundamentals. Mainly EJB 2 entity beans have been replaced with JPA. There are new features added as well like annotations etc...
...as a EJB beginner do we recommend to start with a Ejb 2.0 guide like Head first
There might be so many projects using EJB 2 currently. But if you start with EJB 3 it won't be difficult to work with EJB 2 either
SCJP 5 | SCWCD 5
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I agree. Here's the link:
subject: Difference Between Ejb 2 and 3
Is EJB 2.1 knowledge required for EJB 3.0?
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