injecting app scoped bean in an SystemEventListener

[akostadinov]

Hello,

I was wondering if injecting a an app scoped bean in a system event listener (on e.g. PostConstructApplicationEvent) would be possible? At the moment one needs to resolve it manually from the BeanManager. That's ugly and not convenient.

I already tried but doing it with @Inject results in null.

The use case I have is when for example one has an app scoped bean providing a cache implementation. When this cache needs to be initialized on app startup (for example for a test run) it's better to have a separate class doing that because such operation would not have anything to do with the app logic. I think something can be done with a decorator, I'm not sure but this also doesn't seem right to me.

[mkouba]

Hi Aleksandar,

system event listeners support injection as of JSF 2.2 (part of Java EE 7), see section 5.4.1 "JSF Managed Classes and Java EE Annotations" in the spec and  JAVASERVERFACES_SPEC_PUBLIC-763.

[akostadinov]

Very nice! Any chances to get that in weld prior the prec being ratified?

[mkouba]

I don't think so. Actually SystemEventListener lifecycle is responsibility of JSF impl.