Examples with Farm org.datanucleus.samples.annotations.one_many.bidir.Farm used on opensource projects

Example 11 with Farm

use of org.datanucleus.samples.annotations.one_many.bidir.Farm in project tests by datanucleus.

the class MultithreadedTest method processQueryAndDetachOneManyFKBidir.

protected String processQueryAndDetachOneManyFKBidir(boolean transaction) {
    List<Animal> results = null;
    EntityManager em = emf.createEntityManager();
    EntityTransaction tx = em.getTransaction();
    try {
        if (transaction) {
            tx.begin();
        }
        Query q = em.createQuery("SELECT a FROM " + Animal.class.getName() + " a");
        List<Animal> animals = q.getResultList();
        for (Animal a : animals) {
            Farm f = a.getFarm();
            f.getAnimals();
        }
        results = new ArrayList<Animal>(animals);
        if (transaction) {
            tx.commit();
        }
    } catch (Throwable thr) {
        LOG.error("Exception query objects", thr);
        return "Exception in query : " + thr.getMessage();
    } finally {
        if (transaction && tx.isActive()) {
            tx.rollback();
        }
        // Detached the Animals and their loaded fields
        em.close();
    }
    for (Animal a : results) {
        try {
            LOG.debug(">> Animal: " + a);
            if (a.getFarm() == null) {
                return "Animal has null Farm";
            }
            Farm f = a.getFarm();
            if (f.getAnimals() == null || f.getAnimals().size() != 100) {
                return "Animal has Farm with incorrect Animals";
            }
        } catch (Exception exc) {
            LOG.error(">> Exception thrown on check of results", exc);
            return "Exception checking results : " + exc.getMessage();
        }
    }
    return null;
}

Example 12 with Farm

use of org.datanucleus.samples.annotations.one_many.bidir.Farm in project tests by datanucleus.

the class CriteriaStringsTest method testBasicWithFromJoinOneToManyUsingAttributeName.

/**
 * Test basic generation of query with candidate and alias, and FROM join on 1-N (using attr name).
 */
public void testBasicWithFromJoinOneToManyUsingAttributeName() {
    EntityManager em = getEM();
    EntityTransaction tx = em.getTransaction();
    try {
        tx.begin();
        CriteriaBuilder cb = emf.getCriteriaBuilder();
        CriteriaQuery<Farm> crit = cb.createQuery(Farm.class);
        Root<Farm> candidate = crit.from(Farm.class);
        candidate.alias("f");
        crit.select(candidate);
        Join animalJoin = candidate.join("f.animals");
        animalJoin.alias("a");
        Path nameField = animalJoin.get("name");
        Predicate nameEquals = cb.equal(nameField, "Woolly Sheep");
        crit.where(nameEquals);
        // DN extension
        assertEquals("Generated JPQL query is incorrect", "SELECT f FROM org.datanucleus.samples.annotations.one_many.bidir.Farm f JOIN f.animals a WHERE (a.name = 'Woolly Sheep')", crit.toString());
        Query q = em.createQuery(crit);
        List<Farm> results = q.getResultList();
        assertNotNull("Null results returned!", results);
        assertEquals("Number of results is incorrect", 1, results.size());
        Farm farm = (Farm) results.get(0);
        assertEquals("Farm is incorrect", "Kiwi Farm", farm.getName());
        tx.rollback();
    } finally {
        if (tx.isActive()) {
            tx.rollback();
        }
        em.close();
    }
}

Example 13 with Farm

use of org.datanucleus.samples.annotations.one_many.bidir.Farm in project tests by datanucleus.

the class CriteriaStringsTest method setUp.

/* (non-Javadoc)
     * @see org.datanucleus.tests.PersistenceTestCase#setUp()
     */
@Override
protected void setUp() throws Exception {
    super.setUp();
    EntityManager em = getEM();
    EntityTransaction tx = em.getTransaction();
    try {
        tx.begin();
        Person p1 = new Person(101, "Fred", "Flintstone", "fred.flintstone@datanucleus.org");
        p1.setAge(35);
        em.persist(p1);
        Person p2 = new Person(102, "Barney", "Rubble", "barney.rubble@datanucleus.org");
        p2.setAge(38);
        p2.setBestFriend(p1);
        em.persist(p2);
        // 1-1 relation sample
        Employee emp1 = new Employee(105, "Joe", "Bloggs", "joe.bloggs@datanucleus.org", 12000.0f, "10005");
        emp1.setAge(40);
        Employee emp2 = new Employee(106, "Nigel", "Bloggs", "nigel.bloggs@datanucleus.org", 13000.0f, "10006");
        emp2.setAge(41);
        Account acc1 = new Account();
        acc1.setId(105);
        acc1.setUsername("joebloggs");
        acc1.setEnabled(true);
        Account acc2 = new Account();
        acc2.setId(106);
        acc2.setUsername("nigelbloggs");
        acc2.setEnabled(true);
        emp1.setAccount(acc1);
        emp2.setAccount(acc2);
        Qualification q1 = new Qualification("BSc");
        Calendar cal = GregorianCalendar.getInstance();
        cal.set(Calendar.YEAR, 2001);
        cal.set(Calendar.MONTH, 5);
        cal.set(Calendar.DAY_OF_MONTH, 1);
        q1.setDate(cal.getTime());
        q1.setPerson(emp1);
        Qualification q2 = new Qualification("MSc");
        q2.setPerson(emp2);
        cal.set(Calendar.YEAR, 2011);
        cal.set(Calendar.MONTH, 4);
        cal.set(Calendar.DAY_OF_MONTH, 1);
        q2.setDate(cal.getTime());
        em.persist(emp1);
        em.persist(emp2);
        em.persist(q1);
        em.persist(q2);
        // 1-N relation sample
        Farm farm1 = new Farm("Giles Farm");
        Farm farm2 = new Farm("Kiwi Farm");
        Animal an1 = new Animal("Brown Cow");
        Animal an2 = new Animal("Woolly Sheep");
        Animal an3 = new Animal("Sheepdog");
        farm1.getAnimals().add(an1);
        an1.setFarm(farm1);
        farm2.getAnimals().add(an2);
        an2.setFarm(farm2);
        farm2.getAnimals().add(an3);
        an3.setFarm(farm2);
        em.persist(farm1);
        em.persist(farm2);
        tx.commit();
    } catch (Exception e) {
        LOG.error(">> Exception in setUp data", e);
    } finally {
        if (tx.isActive()) {
            tx.rollback();
        }
        em.close();
    }
}