Examples with JpaSelection org.hibernate.query.criteria.JpaSelection used on opensource projects

Example 1 with JpaSelection

use of org.hibernate.query.criteria.JpaSelection in project hibernate-orm by hibernate.

the class AbstractQueryCacheResultTransformerTest method testJoinWithFetchJoinWithAliasedJoinedAndOwnerProjectedList.

@Test
public void testJoinWithFetchJoinWithAliasedJoinedAndOwnerProjectedList(SessionFactoryScope scope) throws Exception {
    CriteriaExecutor criteriaExecutor = new CriteriaExecutor() {

        @Override
        protected ResultTransformer getResultTransformer() {
            return null;
        }

        @Override
        protected JpaCriteriaQuery getCriteria(Session s) {
            CriteriaBuilder builder = s.getCriteriaBuilder();
            JpaCriteriaQuery criteria = (JpaCriteriaQuery) builder.createQuery(Object[].class);
            JpaRoot<Student> root = criteria.from(Student.class);
            final JpaSelection<Student> st = root.alias("s");
            root.fetch("enrolments", JoinType.LEFT);
            final Selection<Object> pc = root.join("preferredCourse", JoinType.LEFT).alias("pc");
            criteria.orderBy(builder.asc(root.get("studentNumber")));
            criteria.multiselect(pc, st);
            return criteria;
        }
    };
    HqlExecutor hqlSelectNewMapExecutor = new HqlExecutor() {

        @Override
        public Query getQuery(Session s) {
            return s.createQuery("select pc, s from Student s left join fetch s.enrolments left join s.preferredCourse pc order by s.studentNumber");
        }
    };
    ResultChecker checker = results -> {
        List resultList = (List) results;
        assertEquals(2, resultList.size());
        Object[] yogiObjects = (Object[]) resultList.get(0);
        assertEquals(yogiExpected, yogiObjects[1]);
        assertEquals(yogiExpected.getPreferredCourse().getCourseCode(), ((Course) yogiObjects[0]).getCourseCode());
        Object[] shermanObjects = (Object[]) resultList.get(1);
        assertEquals(shermanExpected, shermanObjects[1]);
        assertNull(shermanObjects[0]);
        if (areDynamicNonLazyAssociationsChecked()) {
            assertEquals(yogiExpected.getPreferredCourse(), yogiObjects[0]);
            assertTrue(Hibernate.isInitialized(((Student) yogiObjects[1]).getEnrolments()));
            assertEquals(yogiExpected.getEnrolments(), ((Student) yogiObjects[1]).getEnrolments());
            assertTrue(Hibernate.isInitialized(((Student) shermanObjects[1]).getEnrolments()));
            assertEquals(shermanExpected.getEnrolments(), (((Student) shermanObjects[1]).getEnrolments()));
        }
    };
    runTest(hqlSelectNewMapExecutor, criteriaExecutor, checker, false, scope);
}