How to use MySQL's full text search from JPA

Question

I want to use MySQL\'s full text search features using JPA, without having to use a native query.

I am using EclipseLink, which has a function to support native SQL

Answer 1

The simplest variant is to use NativeQuery

Example of use it with mapping to JPA entity (FiasAddress):

public class FiasServiceBean implements FiasService {

    @PersistenceContext(unitName = "fias")
    EntityManager entityManager;

    @Override
    public Collection search(String name, int limit, int aolevel) {
        Query query = entityManager.createNativeQuery(
                "SELECT fa.* FROM fias.addressobject fa" +
                        " WHERE MATCH(FORMALNAME) AGAINST (:name IN NATURAL LANGUAGE MODE)" +
                        " AND AOLEVEL = :AOLEVEL" +
                        " LIMIT :limit",
                FiasAddress.class
        );
        query.setParameter("name", name);
        query.setParameter("limit", limit);
        query.setParameter("AOLEVEL", aolevel);
        Iterator iterator = query.getResultList().iterator();
        ArrayList result = new ArrayList<>();
        while (iterator.hasNext()) {
            result.add((FiasAddress) iterator.next());
        }
        return result;
    }
}