Annotation with validatedBy set to empty {}

bengalister · **Joined:** Tue Dec 27, 2005 10:39 am **Posts:** 9

Hi,

I am wondering if it is possible to register programmatically a ConstraintValidator class for a custom annotation to the Validator.
I would like to define an annotation CheckCase (example below ) that would be part of my API but I don't want it to import/depend on the ConstraintValidator class.
The ConstraintValidator is for me an implementation class that I don't want to expose and deliver and even depend on it.
Therefore I want to set the validatedBy attribute to empty array for the @Constraint annotation.

Is it possible to configure the validator so that it associates the @CheckCase annotation a specific ConstraintValidator implementation case ?
(like for the annotations provided in the javax.validation api)

Code:

@Target( { METHOD, FIELD, ANNOTATION_TYPE })
@Retention(RUNTIME)
@Constraint(validatedBy = {})
@Documented
public @interface CheckCase {

    String message() default "{com.mycompany.constraints.checkcase}";

    Class<?>[] groups() default {};

    Class<? extends Payload>[] payload() default {};
    
    CaseMode value();

}

Thanks in advance,
Regards,
Luc

Gunnar · **Joined:** Sat Jan 24, 2009 12:46 pm **Posts:** 388

It's currently not possible to register a validator programmatically, but you can do it using an XML constraint mapping (see http://docs.jboss.org/hibernate/stable/validator/reference/en-US/html_single/#section-mapping-xml-constraints):

Code:

<constraint-mappings
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://jboss.org/xml/ns/javax/validation/mapping validation-mapping-1.1.xsd"
    xmlns="http://jboss.org/xml/ns/javax/validation/mapping" version="1.1">

    <constraint-definition annotation="org.mycompany.CheckCase">
        <validated-by include-existing-validators="false">
            <value>org.mycompany.CheckCaseValidator</value>
        </validated-by>
    </constraint-definition>
</constraint-mappings>

Maybe you want to contribute an addition to the HV programmatic constraint declaration API (http://docs.jboss.org/hibernate/stable/validator/reference/en-US/html_single/#section-programmatic-api) for registering constraint validators?

--Gunnar