Interface ProfileValidator

  • Functional Interface:
    This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

    public interface ProfileValidator
    Used to validate profiles and to apply acceptance rules. Bellow the example of usage :
     private static ProfileValidator checkDuplicateInDatabaseValidator() {
        return (profile, profileIdentifier) -> {
            GenericRejectionCause rejection = null;
            boolean exist = ... exists in database?;
            if (exist) {
               rejection = GenericRejectionCause.rejectDuplicatedInDatabase(profileIdentifier);
            return (rejection == null) ? Optional.empty() : Optional.of(rejection);
    The call the method like this to validate the profile p: GenericRejectionCause rejection = checkDuplicateInDatabaseValidator().validate(p, p.getName()); Check if rejection is present then do the resolution
    • Method Detail

      • validate

        java.util.Optional<ProfileValidator.RejectionCause> validate​(ProfileModel profile)
        Validate a profile object
        profile - to validate
        empty optional if OK, Else return the rejection cause