Convert string to int in Hibernate order criterion

Question

Basically, my question is the same as this one, but for Java\'s (JBoss) Hibernate: How can we order a column as int using hibernate criteria API?

I want to create an or

Answer 1

If the column contains integer values, the best solution is to map it as an integer rather than a String.

If, for obscure reasons, this is not possible, you could add a integer field annotated with @Formula("cast(id) as number") in your entity and order on this field.

Answer 2

Despite the topic is old and may be the problem were solved, I'll post solution. Maybe it will be helpful in future for someone.

criteria.addOrder(new org.hibernate.criterion.Order("anystring", true) {
            @Override
            public String toSqlString(Criteria criteria, CriteriaQuery criteriaQuery) throws HibernateException {
                return "cast(id as int)";
            }
        });