Antonin Stefanutti created CDI-475:
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Summary: Support type annotation in assignability of parameterized types
Key: CDI-475
URL:
https://issues.jboss.org/browse/CDI-475
Project: CDI Specification Issues
Issue Type: Feature Request
Components: Resolution
Reporter: Antonin Stefanutti
Since Java 8 provides support for type annotations, the assignability of parameterized
types rules could be updated to support that feature that may add value in a number of use
cases.
For example, with lifecycle events resolution, instead of writing:
{code}
Set<Annotation> contextNames = new HashSet<>();
void camelContextNames(@Observes ProcessAnnotatedType<? extends CamelContext> pat)
{
if (pat.getAnnotatedType().isAnnotationPresent(ContextName.class))
contextNames.add(pat.getAnnotatedType().getAnnotation(ContextName.class));
}
{code}
One could directly write:
{code}
void camelContextNames(@Observes ProcessAnnotatedType<@ContextName ? extends
CamelContext> pat) {
contextNames.add(pat.getAnnotatedType().getAnnotation(ContextName.class));
}
{code}
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