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difference between ejb 3.0 and ejb3.1

kannan vimal

Joined: Jun 06, 2010
Posts: 15
hi ranchers
can any one explain the difference between ejb3.0 and ejb3.1
Tim Moores

Joined: Sep 21, 2011
Posts: 2409
Here you'll find some articles on that:
Mikalai Zaikin
Ranch Hand

Joined: Jun 04, 2002
Posts: 3308
kannan vimal wrote:hi ranchers
can any one explain the difference between ejb3.0 and ejb3.1

Please, refer section 1.2 of EJB 3.1 specification:

The Enterprise JavaBeans 3.1 architecture extends Enterprise JavaBeans to include the following new
functionality and simplifications to the earlier EJB APIs:
• A simplified Local view that provides Session Bean access without a separate Local Business
• Packaging and deployment of EJB components directly in a .war without an ejb-jar.
• An embeddable API for executing EJB components within a Java SE environment.
• A Singleton session bean component that provides easy access to shared state, as well as application startup/shutdown callbacks.
• Automatically created EJB Timers.
• Calendar based EJB Timer expressions.
• Asynchronous session bean invocations.
• The definition of a lightweight subset of Enterprise JavaBeans functionality that can be provided within Java EE Profiles such as the Java EE Web Profile.
• A portable global JNDI name syntax for looking up EJB components.
Lucas Smith
Ranch Hand

Joined: Apr 20, 2009
Posts: 808

Big deal of information regarding new features in EJB 3.1.

I agree. Here's the link:
subject: difference between ejb 3.0 and ejb3.1
It's not a secret anymore!