JPA Criteria api with CONTAINS function

Question

I\'m trying to crete Criteria API query with CONTAINS function(MS SQL):

select * from com.t_person where contains(last_name,\'xxx\')

CriteriaBuilder          


        

Answer 1

If you want to stick with using CONTAINS, it should be something like this:

//Get criteria builder
CriteriaBuilder cb = em.getCriteriaBuilder();
//Create the CriteriaQuery for Person object
CriteriaQuery query = cb.createQuery(Person.class);

//From clause
Root personRoot = query.from(Person.class);

//Where clause
query.where(
    cb.function(
        "CONTAINS", Boolean.class, 
        //assuming 'lastName' is the property on the Person Java object that is mapped to the last_name column on the Person table.
        personRoot.get("lastName"), 
        //Add a named parameter called containsCondition
        cb.parameter(String.class, "containsCondition")));

TypedQuery tq = em.createQuery(query);
tq.setParameter("containsCondition", "%näh%");
List people = tq.getResultList();

It seems like some of your code is missing from your question so I'm making a few assumptions in this snippet.