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differences b/w J2EE 1.4 & Java EE 5

ankur rathi
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Joined: Oct 11, 2004
Posts: 3830
I know there is lot available on net but can we list down some noticeable (and talk-able) differences here:

1. Annotations are introduced, which makes coding so easy and now it takes less time to code EJB, Web Services etc.

2. Entity Bean is gone. Instead, JPA (Java Persistence API) is introduced for persistence.

Please add.

Thanks!
Mikalai Zaikin
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Joined: Jun 04, 2002
Posts: 3199
    
    5
Originally posted by ankur rathi:
I know there is lot available on net but can we list down some noticeable (and talk-able) differences here:

2. Entity Bean is gone. Instead, JPA (Java Persistence API) is introduced for persistence.



Hi !

They are *not* gone. For backward compatibility they are supported by EJB 3.0 servers too.

regards,
MZ


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ankur rathi
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Joined: Oct 11, 2004
Posts: 3830
Yeah.

Originally posted by Mikalai Zaikin:


Hi !

For backward compatibility ...


You mean existing applicaiton using Entity Bean, right?
Hong Anderson
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Joined: Jul 05, 2005
Posts: 1936
Originally posted by ankur rathi:
Yeah.



You mean existing applicaiton using Entity Bean, right?


No, we can use Entity Bean in EJB 3.0, if we would like. Entity Bean in EJB 3.0 is the same with EJB 2.x.

Furthermore, Java EE 5 includes JSF.


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