JavaBeans 3.0 vs JavaBeans 2.0

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posted 16 years ago

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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

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posted 16 years ago

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Hi Jakub,

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

MG

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Christophe Verré

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posted 16 years ago

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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

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posted 16 years ago

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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

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posted 16 years ago

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Thank you very much for your tips.

Consider Paul's rocket mass heater.