[cdi-dev] [JBoss JIRA] (CDI-472) Support @WithAnnotations as type annotation of lifecycle events
Antonin Stefanutti created CDI-472:
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Summary: Support @WithAnnotations as type annotation of lifecycle events
Key: CDI-472
URL: https://issues.jboss.org/browse/CDI-472
Project: CDI Specification Issues
Issue Type: Feature Request
Reporter: Antonin Stefanutti
As Java 8 introduces type annotations, generalizing the benefit of {{@WithAnnotations}} by
using it as type annotation could improve a lot of recurring patterns that are usually
implemented as a combination of {{ProcessAnnotatedType}} and other lifecycle events.
For example, instead of having to write that in a CDI extension:
{code}
Set<AnnotatedType<?>> camelBeans = new HashMap<>();
void camelAnnotations(@Observes @WithAnnotations({BeanInject.class, Consume.class,
EndpointInject.class, Produce.class, PropertyInject.class}) ProcessAnnotatedType<?>
pat) {
camelBeans.add(pat.getAnnotatedType());
}
<T> void camelBeansPostProcessor(@Observes ProcessInjectionTarget<T> pit,
BeanManager manager) {
if (camelBeans.contains(pit.getAnnotatedType()))
pit.setInjectionTarget(new
CdiCamelInjectionTarget<>(pit.getInjectionTarget(), manager));
}
{code}
One could write directly:
{code}
<@WithAnnotations({BeanInject.class, Consume.class, EndpointInject.class,
Produce.class, PropertyInject.class}) T> void camelBeansPostProcessor(@Observes
ProcessInjectionTarget<T> pit, BeanManager manager) {
pit.setInjectionTarget(new
CdiCamelInjectionTarget<>(pit.getInjectionTarget(), manager));
}
{code}
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