What are the advantages of ejb 3.x over ejb 2.x JavaChamp Flash Card

Question 1 / 57: What are the advantages of EJB 3.x over EJB 2.x?
Choose 3

Developers no longer need to use deployment descriptors to

declare the session beans (state that a class is a session bean )

The business interface of a session bean can now be a plain old Java interface (POJI)

Keeping the old way in writing EJBObject or EJBHome interfaces

Introducing the approach "configuration by exception" or "convention over configuration"

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Explanation:

EJB prior to 3.0 require writting EJBObject or EJBHome interfaces and classes.

"convention over configuration" approach means that defaults are set to reduce the time spent on setting the requirements. Only when a developer wants a specific behavior to be done other than the default, only then he/she can set the requirement explicitly

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