Charles Moulliard created DELTASPIKE-334:
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Summary: CDI + Blueprint integration
Key: DELTASPIKE-334
URL: https://issues.apache.org/jira/browse/DELTASPIKE-334
Project: DeltaSpike
Issue Type: New Feature
Reporter: Charles Moulliard
Priority: Minor
Description should be enriched by authors (Jason, ...)
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From: Nodet Guillaume <[email protected]>
Such a xml is in the META-INF/beans.xml, right ? So that you can override the
behaviour of annotations ?
I'm not sure how / where we could use it, and that does not seem really
critical to me anyway.
I think we'd better come to an understanding of the use case we'd want to cover.
I'm thinking about:
* #1 create beans using the CDI container
* #2 inject CDI beans into blueprint beans using the blueprint xml
* #3 inject blueprint beans into CDI beans using @Inject
* #4 support CDI annotations on blueprint beans (@PostConstruct, @PreDestroy,
@Inject)
#1 is obviously needed, it could be done from the blueprint xml using a simple
tag, eventually pointing to the beans.xml config file, or inline it (though
inlining is not really worth the pain now imho)
>>>>>> <cdi:container xmlns="…">
>>>>>> <cdi:beans url="…" />
>>>>>> </cdi:container>
#2 means being able to use one of the bean created from the CDI container and
inject it using the xml blueprint syntax, something like
<bean ….>
<cdiroperty name="service"… />
</bean>
Not sure what exactly we'd need in the <cdiroperty/> element, but the idea is
to use the bean setters to inject a bean created inside the CDI container
#3 means that we'd need to be able to inject a bean created by the blueprint
container using <bean/> into a @Inject annotated property of a CDI bean created
by the CDI container. In blueprint, beans are referred to by name though, so
it may require a custom annotation maybe ?
#4 means mixing CDI annotations with blueprint beans. It's the most
complicated case I think, as it needs an even closer cooperation of both
containers.
This needs to be triggered either globally or an individual bean using a flag
such an xml attribute such as cdirocess="true" that could be set on a <bean/>
element or a default attribute on the <cdi:container/> element.
Cheers,
Guillaume Nodet
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