Injection of EJB in POJO class not working..

[Yash Don]

Hi ,

I am trying to inject Stateless session bean in POJO(non-EJB) class using @EJB annotation but I am getting NPE exception but same is working inside EJB.

So my question is can we inject EJB inside POJOs?

THanks,
Yash

[Panos Gouleas]

Hello,

i have a similar problem since I am trying to inject a ConnectionFactory using @Resource annotation, but I am getting null result (no error, just my object is null).
I am trying this in a jsf managed bean. Is this possible or do I have to do it in another way?

[Jeanne Boyarsky]

Panos,
Welcome to CodeRanch! What version of JEE are you using? (Injecting into a managed bean should work in the latest version.)

[Panos Gouleas]

Eclipse Helios with jdk 1.6
Jboss 6 final
JSF 2.0

[Udara Amarasinghe]

Hi Panos,

You have to add your EJB servers library files and JavaEE API libraries into your projects library directory to run that program outside from the EJB server.
But I suggest to use JNDI lookup for get server side instance if your client program runs outside from the EJB server.

[Akshay Sahu]

Hi,

Injection of an enterprise bean in a non-managed POJO is not possible.

If you're trying for something say

@EJB
private SampleSessionLocal sessionLocal;

in a simple java class, which comes after your servlet takes the input from the client,
then the container would obviously throw a Null Pointer Exception.

As far as I know, an enterprise bean can be injected into the following managed java objects:
1. Another Enterprise Bean ( EJB 2 or EJB 3 compatible).
2. A Servlet
3. JSF class.
I am not sure about the JSF thing, but the first two things are for sure.

Regards,
Akshay Sahu