doubt : stateless bean dependency injection

[B Misra]

I came across a note where it says obtaining two instances of a stateless bean via dependency injection will always be equal.

I tested it and it is true.

@EJB MySLBeanLocal mySLBean1;
@EJB MySLBeanLocal mySLBean2;

mySLBean1.equals(mySLBean2) always returns true.

But I am not sure what is the reason behind it? Isn't that while invoking stateless bean like that it is always upto the container to return which object from pool?

Any clarification will be really helpful.

[Joe Harry]

As per the EJB specification, the container always maintains equal instances of the Stateless Session beans in its pool. There is no state associated with Stateless session beans. Can you now make it out?

[Mihai Radulescu]

Hi

In the ejb 3.0 specification on page 47 (3.4.5.2 Stateless Session Beans) you can find

The equals method always returns true when used to compare references to the same business interface type of the same session bean. Session bean references to either different business interface types or different session beans will not be equal.

I hope that this helps, in the same document - somewhere upper - is they describe the equals for statefull.

Regards
Mihai