[hibernate-issues] [Hibernate-JIRA] Commented: (HV-512) Composed constraints lose the payload information of the constraints they are composed of

[Hardy Ferentschik (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HV-512?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=44833#comment-44833 ] 

Hardy Ferentschik commented on HV-512:
--------------------------------------

That would be against the spec which says (Section 2.3 Constraint Composition):

{quote}
Likewise, payload from the main constraint annotation is inherited by the composing annotations. Any payload definition on a composing annotation is ignored.
{quote}

If you feel strongly about this and think this should be changed for Bean Validation 1.1 you should create a issue in [BVAL|https://hibernate.onjira.com/browse/BVAL]. The current behavior was an direct result of [BVAL-177https://hibernate.onjira.com/browse/BVAL-177].

> Composed constraints lose the payload information of the constraints they are composed of
> -----------------------------------------------------------------------------------------
>
>                 Key: HV-512
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HV-512
>             Project: Hibernate Validator
>          Issue Type: Bug
>          Components: validators
>    Affects Versions: 4.2.0.Final
>            Reporter: Geoff The
>             Fix For: 4.3.0.next
>
>
> If a payload is set for child constraints in a composed constraint, their payload values will be ignored.
> HV-183 dealt with the propagation of the parent's payload down to the children constraints, but it also overwrites any payload the children may have had.
> I would suggest that if the children have any explicit payloads defined, they should be integrated into the parents and not blown away.
> {code}
> import org.junit.*;
> import javax.validation.*;
> import javax.validation.constraints.NotNull;
> import java.lang.annotation.*;
> import java.util.*;
> import static org.junit.Assert.*;
> import static java.lang.annotation.ElementType.*;
> import static java.lang.annotation.RetentionPolicy.*;
> public class TestPayload {
>     public static class Warning implements Payload {}
>     public static class Error implements Payload {}
>     @Documented
>     @Constraint(validatedBy = NameMustBeGeoffValidator.class)
>     @Target({ TYPE, METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER })
>     @Retention(RUNTIME)
>     public @interface NameMustBeGeoff {
>         String message() default "{NameMustBeGeoff.message}";
>         Class<?>[] groups() default {};
>         Class<? extends Payload>[] payload() default {};
>     }
>     public static class NameMustBeGeoffValidator implements ConstraintValidator<NameMustBeGeoff, Customer> {
>         @Override
>         public void initialize(NameMustBeGeoff constraintAnnotation) {}
>         @Override
>         public boolean isValid(Customer value, ConstraintValidatorContext context) {
>             return ((value.getName() == null) || (value.getName().equals("Geoff")));
>         }
>     }
>     @NameMustBeGeoff(payload = Error.class)
>     @Documented
>     @Constraint(validatedBy = ValidCustomerValidator.class)
>     @Target({ TYPE, METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER })
>     @Retention(RUNTIME)
>     public @interface ValidCustomer {
>         String message() default "{ValidCustomer.message}";
>         Class<?>[] groups() default {};
>         Class<? extends Payload>[] payload() default {};
>     }
>     public static class ValidCustomerValidator implements ConstraintValidator<ValidCustomer, Customer> {
>         @Override
>         public void initialize(ValidCustomer constraintAnnotation) {}
>         @Override
>         public boolean isValid(Customer value, ConstraintValidatorContext context) { return true; }
>     }
>     @ValidCustomer
>     public class Customer {
>         private String name;
>         public Customer(String name) { this.name = name; }
>         @NotNull(payload = Warning.class)
>         public String getName() { return this.name; }
>     }
>     /**
>      * Customer's name is null, it should trigger the @NotNull with a Warning payload
>      */
>     @Test
>     public void test() {
>         ValidatorFactory factory = Validation.buildDefaultValidatorFactory();
>         Validator validator = factory.getValidator();
>         Customer customer = new Customer(null);
>         Set<ConstraintViolation<Customer>> violations = validator.validate(customer);
>         assertEquals(1, violations.size());
>         ConstraintViolation<Customer> violation = violations.iterator().next();
>         assertEquals("may not be null", violation.getMessage());
>         assertEquals("javax.validation.constraints.NotNull", violation.getConstraintDescriptor().getAnnotation().annotationType().getName());
>         assertEquals(1, violation.getConstraintDescriptor().getPayload().size());
>         assertEquals(Warning.class, violation.getConstraintDescriptor().getPayload().iterator().next());
>     }
>     /**
>      * Customer's name is not Geoff and should trigger the NameMustBeGeoff constraint, but the Error payload is lost
>      */
>     @Test
>     public void testPayloadInComposedConstraints() {
>         ValidatorFactory factory = Validation.buildDefaultValidatorFactory();
>         Validator validator = factory.getValidator();
>         Customer customer = new Customer("Bob");
>         Set<ConstraintViolation<Customer>> violations = validator.validate(customer);
>         assertEquals(1, violations.size());
>         ConstraintViolation<Customer> violation = violations.iterator().next();
>         assertEquals("{NameMustBeGeoff.message}", violation.getMessage());
>         assertEquals("org.geofft.TestPayload$NameMustBeGeoff", violation.getConstraintDescriptor().getAnnotation().annotationType().getName());
>         assertEquals(0, violation.getConstraintDescriptor().getPayload().size()); // Not what I expected
>         /*
>         What I think should happen:
>         assertEquals(1, violation.getConstraintDescriptor().getPayload().size());
>         assertEquals(Customer.Error.class, violation.getConstraintDescriptor().getPayload().iterator().next());
>         */
>     }
> }
> {code}

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