Re: EJB injection issues from .WAR classes?

Hi Hans

A Java EE container is only required to manager @EJB in Java EE managed 
components (Servlet, Filter, ...).
Here you have an @EJB in some framework managed classes.
JOnAS (and any other container) will not inject anything for you here, 
this is the job of the framework to do that.

Maybe there is a webwork extension that will add support for this ?

--G


Le 06/02/2011 09:50, Hans J. Prueller a écrit :
> Hi JOnAS Team!
>
> Meanwhile I have set up a Testproject and (partially) migrated  our 
> Java EE 1.4 based EAR  to Java EE 5 (finally!).
> Basically things work, I can deploy the EAR to JOnAS 5.2 with success.
>
>
> One major problem I have is that the injection of EJB's into the 
> .WAR-File classes not always works and I do not know why ?
>
>
> E.g. there are 2 classes in the WAR file, in one case the EJB 
> injection works in the other case NOT (the reference to the EJB simply 
> is NULL all the time):
>
> case 1)  classical Servlet class (Extends HttpServlet)  IMSAppServ.java:
>
> member variable:
>
> @EJB
> static IMSSystem imssys;
>
>
> -- when accessing imssys in doGet etc. methods -- it is already 
> injected correctly  and I can invoke the EJB methods (SLSB)
>
>
> case 2)  we are using WebWork as WebApp Framework instead of "pure 
> servlet programming", something similar to struts. webwork
> handles requests in so called "Action classes"; there is for instance 
> the "HomeAction.java":
>
> member variable:
> @EJB
> IMSSystem imssys;
>
> --- when accessing imssys in the "execute" method of the action class, 
> it ALWAYS IS NULL   and causes NPE's  and follow up errors ...
>
>
>
>
> _I assumed that the EJB's  should be injected anywhere I put the @EJB 
> annotation in one of the classes contained in the WAR -- am I wrong_
> _with this ? so what is required to get working @EJB injections also 
> in our WebWork based or any other classes ?_
>
> as I didn't found much in the docs regarding this issue,  help is 
> appreciated! ;-)
>
> regards,
> HANS

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