Hi all,

I have some code which looks like this:



What I want to accomplish is to validate that all addresses have a valid streetName. Validating the complete object works without any problems by using the following code:



However, what I want to do is this:



"address.streetName", however, doesn't work, because Hibernate thinks my address is a set without a streetName, which is correct. What I also tried was:
"address[].streetName", but then Hibernate complains with an error: "Property path must provide index or map key". If I add such a thing:
"address[0].streetName", it works, but only for the first item in the set, but not when the set is empty or there are two or more items in the set.

So, I was wondering: how do I get this work and how do I validate all the streetNames of all the addresses. Any help would be greatly appreciated!

Kind regards,

Erik Pragt

Hi,

there is no direct way to do this in Bean Validation. You could do something like this:

to validate all addresses, but this would of course also validate the city property.
You could write a loop which iterates over the addresses and call

something like this.

--Hardy

Hi Hardy,

A shame that there's no wildcard operator to do this, especially when the ConstraintViolation.getPropertyPath() does return address[].streetName.

Thanks for the reply however, at least now I know I haven't overlooked something!

Erik

Well, you are using a Set which does not define a order per definition, hence no index. The Bean Validation spec is quite vague on the exact property syntax when it comes to navigating the object graph. Hibernate Validator accepts "address[0].streetName", but it cannot guarantee that each time the same object gets validated.

--Hardy