@Entity
@NamedEntityGraph(name = "Employee", includeAllAttributes = true)
public class Employee {
    @Id
    public long id;

    public String ssn;

    @ManyToOne(optional = false)
    @Fetch(FetchMode.JOIN)
    public Company company;
}

@Entity
public class Company {
    @Id
    public long id;

    public String name;
}

public class HibernateTest {

    private EntityManagerFactory emf;

    @Test
    public void test() {
        EntityManager em = emf.createEntityManager();
        Query query = em.createQuery("select e from Employee e where e.ssn = '123-45-6789'");

        EntityGraph<?> entityGraph = em.getEntityGraph("Employee");
        query.setHint("javax.persistence.fetchgraph", entityGraph);

        Employee = query.getSingleResult();
    }
}

select employee0_.id as id1_5_0_, company1_.id as id1_4_1_, employee0_.company as company3_5_0_, employee0_.ssn as ssn2_5_0_, company1_.name as name2_4_1_ 
from employee employee0_ 
left outer join company company1_ 
on employee0_.company=company1_.id
where employee0_.ssn='123-45-6789'