From: Kay Wrobel <[email protected]>
To: [email protected]
Cc:
Sent: Monday, 28 October 2013, 23:06
Subject: Re: CDI Injecting parameterized types
Interesting that this topic has come up. I just tried to roll out a
change to my project where I have following situation:
Currently, I have an AbstractController and then a Controller for each
entity class. On the EJB side of things, I have an AbstractFacade and an
entity Facade for each entity, each annotated with @Stateless. Right
now, I am injecting an EntityFacade object into an EntityController and
then hand off the actual object to a variable that sits inside the
AbstractController. I wanted to change that behavior and perform the
injection right inside the abstract controller class. To give you a more
concrete example, this is how it looks like now:
AbstractController.java:
public abstract class AbstractController<T> {
private AbstractFacade<T> ejbFacade;
public AbstractController() {
}
protected AbstractFacade<T> getFacade() {
return ejbFacade;
}
protected void setFacade(AbstractFacade<T> ejbFacade) {
this.ejbFacade = ejbFacade;
}
}
CustomerController.java:
@Named(value = "discountCodeController")
@ViewAccessScoped
public class DiscountCodeController extends
AbstractController<DiscountCode> implements Serializable {
* @Inject**
** private DiscountCodeFacade ejbFacade;**
*
@PostConstruct
public void init() {
super.setFacade(ejbFacade);
}
}
Now for the change that I had already tested out with Glassfish 3.1.2:
AbstractController.java:
public abstract class AbstractController<T> {
* @Inject**
** private AbstractFacade<T> ejbFacade;**
*
public AbstractController() {
}
public AbstractController(Class<T> itemClass) {
this.itemClass = itemClass;
}
}
DiscountController.java:
@Named(value = "discountCodeController")
@ViewAccessScoped
public class DiscountCodeController extends
AbstractController<DiscountCode> implements Serializable {
public DiscountCodeController() {
super(DiscountCode.class);
}
}
Notice how I am injecting an AbstractFacade<T> inside
AbstractController<T>. This works in Glassfish but fails in
Tomee/OpenEJB.
Attached is the the deployment log of TomEE: http://pastebin.com/iZHZqy5d
Any input from you guys?
On 10/28/2013 04:29 PM, Romain Manni-Bucau wrote:
I needed it for other reasons. Globally while not using producers it
should
work.
Le 28 oct. 2013 22:21, "Chris Owens"
<[email protected]> a
écrit :
Thank you, that code is very helpful. I was hoping to be able to do
it
without the use of an additional qualifier.
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