public <P> List<P> findAll(PropertySelection<P> selection, Specification<T> spec, Number limit) {
        return getQueryProperty(selection, spec, null).setMaxResults(limit.intValue()).getResultList();
    }
protected <P> TypedQuery<P> getQueryProperty(PropertySelection<P> sel, Specification<T> spec, Sort sort) {
        CriteriaBuilder builder = em.getCriteriaBuilder();
        CriteriaQuery query = builder.createQuery();
        Root<T> root = applySpecificationToCriteria(spec, query);
        query.select(sel.toSelection(root, query, builder)).distinct(true);
        if (sort != null) {
            query.orderBy(toOrders(sort, root, builder));
        }
        return em.createQuery(query);
    }
public interface PropertySelection<P> {
    Selection<P> toSelection(Root root, CriteriaQuery<?> query, CriteriaBuilder cb);
}

    public List<Model> findByMask(final String mask) {
            return repository().findAll(new Specification<Model>() {
                public Predicate toPredicate(Root<Model> root, CriteriaQuery<?> query, CriteriaBuilder cb) {
                    return cb.like(root.get("name"),mask);
                }
            }, MAX_MASKED_RESULT);
        
    }