Can you use a spring validator with model annotations (jsr 303)?

I'd like to keep my validations at the model annotation level using jsr 303.

On my form pages, can I still use a spring validator along with model level annotations?

I have a form that has 2 models on it, and not sure how to validate using a bindingresult when I have form fields from 2 models (not all the fields, just some).

So on postback, I want to first manually set some properties on both models, and THEN perform validation.

how can I do this?