[hibernate-issues] [Hibernate-JIRA] Commented: (HV-353) Support inheritance for marker interfaces

[Hardy Ferentschik (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HV-353?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=39136#action_39136 ] 

Hardy Ferentschik commented on HV-353:
--------------------------------------

I added a test to {{org.hibernate.validator.test.engine.groups.inheritance.GroupInheritanceTest}} showing that the described usecase works.

> Support inheritance for marker interfaces
> -----------------------------------------
>
>                 Key: HV-353
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HV-353
>             Project: Hibernate Validator
>          Issue Type: Improvement
>          Components: engine
>    Affects Versions: 4.1.0.Final
>            Reporter: Marc Schipperheyn
>            Assignee: Hardy Ferentschik
>             Fix For: 4.2.0.Beta1
>
>
> Currently, constraints use marker interface specified in the group attribute to determine whether a constraint is active for a certain context. 
> Unfortunately, group membership doesn't seem to support inheritance which would greatly reduce the number of markers required (and processing since you need less markers).
> E.g. (contrived)
> {code}
> public interface CheckVehicle{}
> public interface CheckCar extends CheckVehicle{}
> public interface CheckBicycle extends CheckVehicle{}
> //bean
> @AssertTrue(groups={CheckVehicle.class})
> Boolean workingBrakes()
> @NotNull(groups={CheckBicycle.class})
> String brakeType()
> {code}
> If the active group is CheckBicycle, it should validate  both workingBrakes and brakeType.
> It should be a relatively simply change as well. 

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