File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
A friendly place for programming greenhorns!
Big Moose Saloon
Register / Login
Win a copy of
Elasticsearch in Action
this week in the
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
How to ask questions
I agree. Here's the link:
subject: Difference Between Ejb 2 and 3
Is EJB 2.1 knowledge required for EJB 3.0?
EJB 2 or EJB 3 for fresh SCBCD
What's new with EJB 3?
What is the EJB version (3 or 3.1) I should study for OCPJBCD 6 exam?
All times are in JavaRanch time: GMT-6 in summer, GMT-7 in winter
| Powered by
Copyright © 1998-2015