Validation of a container class

[keen notch]

Hello, I have a container class defined like so:

public sealed interface Either<L,R> {
    record Left<L, R>(L value) implements Either<L, R> {}
    record Right<L, R>(R value) implements Either<L, R> {}
}

also I wrote a required ValueExtractor

public class RightValueExtractor<L, R> implements ValueExtractor<Either<L, @ExtractedValue R>> {
    @Override
    public void extractValues(Either<L, R> either, ValueReceiver valueReceiver) {
        switch(either) {
            case Either.Right<L, R> right -> valueReceiver.value(null, right.value());
            default -> throw new IllegalStateException("Unexpected value: " + either);
        }
    }
}
// LeftValueExtractor implemented likewise

and mentioned it in the services file appropriately (meaning ide does not complain)

But when I'm trying to validate the value inside of Either with a following sample

@AllArgsConstructor
class ValidationTesting {
    private final Either<Ignore, @Email String> email;
}
...
ValidationTesting email = new ValidationTesting(new Either.Left(Ignore.IGNORE));
Validator validator = Validation.buildDefaultValidatorFactory().getValidator();
assertEquals("Validation: ", 0, validator.validate(email).size());

i get this error:

jakarta.validation.ConstraintDeclarationException: HV000197: No value extractor found for type parameter 'R' of type com.example.Either.

What is wrong here? Is there something that I'm missing?

[late bobcat]

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[tropic stream]

Are you adding respective extractor instances to the context?

[keen notch]

What do you mean exactly? Docs say that adding a fully qualified extractor name to the respective services file is enough for it to be visible

[tropic stream]

Ah, perhaps it's automatically added when constructed with buildDefaultValidatorFactory then.