Is it possible to use class objects as inputs for a custom annotation?

[lillianlouie]

Hi, w

e would like to support validation groups in our schema, but this requires support for class objects.
 For example:

public interface Update {
}


public class ProfileResource {
    @POST
    @Path("create")
    public Profile createProfile( @Valid Profile profile){
        return  ...
    }

    @POST
    @Path("update")
    public Profile updateProfile( @Validated(Update.class) Profile profile){
        return  ...
}


public class Profile {
    @NotEmpty(groups = [Update.class])
    private String id;
    ...
}

In this example, we are using the same model for Create and Update, but we want to validate the same model differently based on the operation.

Leveraging https://netflix.github.io/dgs/generating-code-from-schema/#generating-classes-with-custom-annotations, we want to pass a class object or a list of class objects to mark the validation classes. Something like:

type Profile {
    id @annotate(name: "NotEmpty", type: null, inputs: {groups: [Update.class]}) 
}

However, looking at the DGS CodeGen and GraphQL parser, I do not see support for class objects as a parameter. 

A possible workaround would be to use a string and then reflection to get the class but would prefer a less brute force method.

Is there a way to do this? Thanks!

[lillianlouie]

@srinivasankavitha Would you be able to help?