JSR-303 Spring Bean Validator

import java.util.Set;

import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.Validator;
import javax.validation.ValidatorFactory;

import org.springframework.beans.factory.InitializingBean;
import org.springframework.stereotype.Service;

@Service
public class BeanValidator implements InitializingBean {

    private Validator validator;

    public void afterPropertiesSet() throws Exception {
        ValidatorFactory validatorFactory = Validation.buildDefaultValidatorFactory();
        validator = validatorFactory.getValidator();
    }


    public <T> Set<ConstraintViolation<T>> validate(T target) {
        return validator.validate(target);
    }
}