I'd like to propose validator.validateProperty(Object bean, String propertyName, SomeGroupValidation.class)

[ThiagoDosSantos]

As hibernate validator has this method, I think it'd be useful to have this method in vraptor validator as well. And it's very simple to implement!

[ThiagoDosSantos]

For all those who don't think it can be useful, here it's an example:

public class Book {
@Min.List( { @min(value = 100, groups = Printing.class), @min(value = 5, groups = Draft.class) })
private int numOfPages;

    ... other fields ...

}

For now, we can't validate only numOfPages field with vraptor validator. But it's possible with hibernate validator:

hibernateValidator.validateProperty(book, "numOfPages", Printing.class);

[garcia-jj]

Already implemented. Please, look BeanValidator.validateProperties, that you can define properties to be validated.

[ThiagoDosSantos]

Garcia, It's not implemented as you said. There's no BeanValidator.validateProperty(Object bean, String propertyName, SomeGroupValidation.class)

[nykolaslima]

Today we can validate some properties: validateProperties(object, "id", "name");
or validate some Validation Groups: validate(object, Grupo1.class, Grupo2.class)
#506

We don't have an implementation as @ThiagoDosSantos suggested.

[garcia-jj]

My mistake. Thiago, can you send a pull request to us?

Thanks

[ThiagoDosSantos]

Thanks a lot!