Annotations on Records and Record Components

[Summers Pittman ℝ]

On Tue, Jan 28, 2020 at 11:47 AM Remi Forax <forax at univ-mlv.fr> wrote:

> Hi !
>
> Does JsonProperty declare RECORD_COMPONENT has target ?
> If no, that's why you don't see it on the record component.
>

> But everything is not lost, the annotations can also be propagated to the
> members of the record,
> the generated fields and methods, you can checkout.
>
>
Thanks for the clarification. It didn't occur to me that record components
would need different annotation targets, but that makes sense in retrospect.


> cheers,
> Rémi
>
> ----- Mail original -----
> > De: "Summers Pittman ℝ" <secondsun at gmail.com>
> > À: "amber-dev" <amber-dev at openjdk.java.net>
> > Envoyé: Mardi 28 Janvier 2020 16:13:41
> > Objet: Annotations on Records and Record Components
>
> > I created a record but I can't access the annotations on the record
> > components.
> >
> > Given the following record
> >
> > ```java
> > record Record(@JsonProperty("id") int id, @JsonProperty("text")  String
> > text){ }
> > ```
> >
> > I ran the following code to reflect the annotations
> >
> > ```java
> >        var recClass = Record.class;
> >        for (RecordComponent recordComponent :
> > recClass.getRecordComponents()) {
> >            System.out.print("RecordComponent : ");
> >            System.out.println(recordComponent.toString());
> >            for (Annotation anno :
> > recordComponent.getDeclaredAnnotations()) {
> >                System.out.print("RecordComponent Annotation : ");
> >                System.out.println(anno);
> >            }
> >        }
> > ```
> >
> > and I don't see the annotations listed in the output:
> >
> > ```txt
> > RecordComponent : int id
> > RecordComponent : java.lang.String text
> > ```
> >
> > Am I holding it wrong? I'm using Java 14.ea.33 if the version helps.
> >
> >
> > Summers Pittman
> >>>Phone:404 941 4698
> > >>Java is my crack.
>