[cdi-dev] [JBoss JIRA] (CDI-485) Provide literals for built-in annotations

[Jozef Hartinger (JIRA)]

Jozef Hartinger created CDI-485:
-----------------------------------

             Summary: Provide literals for built-in annotations
                 Key: CDI-485
                 URL: https://issues.jboss.org/browse/CDI-485
             Project: CDI Specification Issues
          Issue Type: Feature Request
    Affects Versions: 1.2.Final
            Reporter: Jozef Hartinger


Annotation literals are often useful and therefore many projects implement them themselves. For example:

https://github.com/DeltaSpike/Mirror/blob/master/deltaspike/core/api/src/main/java/org/apache/deltaspike/core/api/literal/DefaultLiteral.java
https://github.com/weld/core/blob/master/impl/src/main/java/org/jboss/weld/literal/DefaultLiteral.java
https://github.com/forge/furnace-cdi/blob/master/impl/src/main/java/org/jboss/forge/furnace/container/cdi/util/DefaultLiteral.java
https://github.com/astefanutti/metrics-cdi/blob/master/impl/src/main/java/io/astefanutti/metrics/cdi/DefaultLiteral.java

to name a few.

It would be nice to provide these within the CDI API, e.g:

{code:JAVA}
@Target( { TYPE, METHOD, PARAMETER, FIELD })
@Retention(RUNTIME)
@Documented
@Qualifier
public @interface Default {

    @SuppressWarnings("all")
    final class Literal extends AnnotationLiteral<Default> implements Default {
        private Literal() {
        }
    }

    final Default INSTANCE = new Literal();
}
{code}



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