[jira] [Commented] (FELIX-4392) make @Property use RetentionPolicy.RUNTIME so that code can use runtime field/setter injecting property values

["Carsten Ziegeler (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FELIX-4392?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13873272#comment-13873272 ] 

Carsten Ziegeler commented on FELIX-4392:
-----------------------------------------

This was done on purpose - number one reason being spec compliant, secondly not requiring any bundle providing the annotations at runtime.
With RFC 190, the spec will get a much nicer way of configuring the component, as this spec will be released this year, it makes more sense to focus on implementing/supporting the spec than inventing a proprietary way.

> make @Property use RetentionPolicy.RUNTIME so that code can use runtime field/setter injecting property values
> --------------------------------------------------------------------------------------------------------------
>
>                 Key: FELIX-4392
>                 URL: https://issues.apache.org/jira/browse/FELIX-4392
>             Project: Felix
>          Issue Type: Improvement
>          Components: SCR Annotations
>            Reporter: james strachan
>
> It'd be nice to be able to write a base class for a @Component with an @Activate method taking the Map<String,Object> of configurations and performing field or setter injection of configurations via @Property - but the annotation is not retained at runtime right now due to CLASS not RUNTIME RetentionPolicy on @Property.
> Any idea why not? Was this on purpose or just an oversight?
> e.g. it'd be nice to be able to code components like this (and get the SCR and MetaType metadata auto-generated)
> {code}
> public abstract class MyAbstractComponent {
>     @Activate
>     public void activate(Map<String, ?> configuration) throws Exception {
>        // use introspection to find the fields and setters with @Property annotated...
>     }
> }
> ...
> @Component(name = "foo")
> public FooComponent extends MyAbstractComponent {
> @Property
> private int foo;
> @Property
> private String bar;
> ....
> {code}



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