[cdi-dev] CDI-471 and repeatable annotations
john.ament at spartasystems.com
Mon Nov 21 08:47:00 EST 2016
I'll make these changes for #1-#3. I'm not in favor of #4. Its not consistent with our existing method. (I'd prefer consistency of our API over consistency with the Java lang's spec)
I may get to them this evening.
From: cdi-dev-bounces at lists.jboss.org <cdi-dev-bounces at lists.jboss.org> on behalf of Martin Kouba <mkouba at redhat.com>
Sent: Monday, November 21, 2016 8:25 AM
Subject: [cdi-dev] CDI-471 and repeatable annotations
during the review of CDI API 2.0.Alpha5 with modified Annotated SPI 
I came across few questionable parts:
1. We should be more clear that the original methods like
Annotated.getAnnotations() or Annotated.isAnnotationPresent() DO NOT
support repeatable annotations - this is what Reflection API does to
remain backward compatible - see also AnnotatedElement javadoc 
2. Thus AnnotatedElement.getAnnotation(Class<T>) should not be
deprecated - for the same reasons as
AnnotatedElement.getAnnotation(Class<T>) is not
3. We should provide a default implementation of
Annotated.getAnnotations(Class<T>), otherwise a lot of extensions
providing their own Annotated implementations would be broken
4. We should consider renaming the method to "getAnnotationsByType()" to
keep it simple for users used to Reflection API
CDI-471 Introduce SPI for retrieving multiple annotations of the same... by johnament · Pull Request #330 · cdi-spec/cdi<https://github.com/cdi-spec/cdi/pull/330>
... type, deprecating the old one. Updated spec docs for qualifiers to reflect repeatability and spec docs for annotated for new method.
AnnotatedElement (Java Platform SE 8 ) - Oracle<https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/AnnotatedElement.html>
Represents an annotated element of the program currently running in this VM. This interface allows annotations to be read reflectively. All annotations returned by ...
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