We want specify custom valuator for ALL Date fields of ALL classes in predefined package (Dates of domain model are stored in DB and should fit in predefined range that is smaller than Date object supports). Is it possible to do this with Hibernate Validator 4?

Den

No that's not possible in Bean Validation (which is the specification Hibernate Validator is the reference implementation for). You have to explicitly specify all constraints, either via annotations or via xml configuration.
I guess you could write a custom class validator which checks for date instances in the class (via reflection) and validates them. Note, I don't recommend this!

What you are asking for is some sort of aspect type of language to apply constraints. I personally think this could get quite ugly, but you could suggest this feature on the BVAL forum or jira.

--Hardy