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JavaBeans 3.0 vs JavaBeans 2.0

Jakub Drzazga
Ranch Hand

Joined: Nov 14, 2008
Posts: 41
Is the JavaBeans 3.0 something completely different than JavaBeans 2.0? If I have a book for JavaBeans 2.0 can I use it for beginning or I shouldn't even start with it?
Mark Garland
Ranch Hand

Joined: Nov 11, 2006
Posts: 226
Hi Jakub,

They are very different. EJB3 is a lot simpler and makes use of annotations, so there's quite a big jump.


28/06/06 - SCJP - 69%, 05/06/07 - SCWCD - 92%, 28/02/08 - IBM DB2 v9 Fundamentals (Exam 730) - 87%, 18/11/08 - IBM DB2 v9 DBA (Exam 731) - 89%, 26/02/11 - SCBCD - 88%
Christophe Verré

Joined: Nov 24, 2005
Posts: 14687

We say Enterprise JavaBeans, not JavaBeans That's different. If you want to study SCBCD5(EJB3.0), you really need a book about EJB3.

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Hong Anderson
Ranch Hand

Joined: Jul 05, 2005
Posts: 1936
Enterprise JavaBeans (EJB) is not JavaBeans. I believe you mean EJB.

EJB 3's goal is to simplify Java EE development. It has many features that make it simpler and better than EJB 2, such as Annotations support, dependency injection (DI), interceptor, and use JPA for persistence layer instead of Entity Beans.

SCJA 1.0, SCJP 1.4, SCWCD 1.4, SCBCD 1.3, SCJP 5.0, SCEA 5, SCBCD 5; OCUP - Fundamental, Intermediate and Advanced; IBM Certified Solution Designer - OOAD, vUML 2; SpringSource Certified Spring Professional
Jakub Drzazga
Ranch Hand

Joined: Nov 14, 2008
Posts: 41
Thank you very much for your tips.
With a little knowledge, a cast iron skillet is non-stick and lasts a lifetime.
subject: JavaBeans 3.0 vs JavaBeans 2.0
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