Examples with ClassWithNonPCCollection org.datanucleus.samples.detach.ClassWithNonPCCollection used on opensource projects

Example 1 with ClassWithNonPCCollection

use of org.datanucleus.samples.detach.ClassWithNonPCCollection in project tests by datanucleus.

the class AttachDetachTest method testDetachCollectionWithNonPCElements.

/**
 * Test of detach/attach with a Collection of non-PC objects.
 * TODO Change the sample to a generic collection of non-PC to be used everywhere
 */
public void testDetachCollectionWithNonPCElements() {
    try {
        Object objectId = null;
        ClassWithNonPCCollection obj1 = new ClassWithNonPCCollection();
        PersistenceManager pm = newPM();
        Transaction tx = pm.currentTransaction();
        try {
            // test detach and attach
            tx.begin();
            obj1.getElements().add("elem1");
            obj1.getElements().add("elem2");
            pm.makePersistent(obj1);
            tx.commit();
            objectId = pm.getObjectId(obj1);
            // test detach and attach
            tx.begin();
            obj1 = (ClassWithNonPCCollection) pm.getObjectById(objectId, true);
            pm.getFetchPlan().addGroup("detach");
            obj1 = (ClassWithNonPCCollection) pm.detachCopy(obj1);
            assertEquals("wrong number of detached non pc elements", 2, obj1.getElements().size());
            assertEquals("wrong element of detached non pc element", "elem1", obj1.getElements().get(0));
            assertEquals("wrong element of detached non pc element", "elem2", obj1.getElements().get(1));
            tx.commit();
        } catch (Exception e) {
            LOG.error("Exception in test", e);
            fail(e.toString());
        } finally {
            if (tx.isActive())
                tx.rollback();
            pm.close();
        }
    } finally {
        clean(ClassWithNonPCCollection.class);
    }
}

Example 2 with ClassWithNonPCCollection

use of org.datanucleus.samples.detach.ClassWithNonPCCollection in project tests by datanucleus.

the class AttachDetachTest method testAttachCleanCollectionWithNonPCElements.

/**
 * Test of attaching an object with a collection that has no changed elements and
 * where the elements of the collection are non-PC.
 */
public void testAttachCleanCollectionWithNonPCElements() {
    try {
        Object objectId = null;
        ClassWithNonPCCollection obj1 = new ClassWithNonPCCollection();
        PersistenceManager pm = newPM();
        Transaction tx = pm.currentTransaction();
        try {
            // test detach and attach
            tx.begin();
            obj1.getElements().add("elem1");
            obj1.getElements().add("elem2");
            pm.makePersistent(obj1);
            tx.commit();
            objectId = pm.getObjectId(obj1);
            // detach
            tx.begin();
            obj1 = (ClassWithNonPCCollection) pm.getObjectById(objectId, true);
            pm.getFetchPlan().addGroup("detach");
            obj1 = (ClassWithNonPCCollection) pm.detachCopy(obj1);
            tx.commit();
            // add a storeLifeCycleListener to check what gets stored
            final Collection<Object> storedElements = new ArrayList<>();
            pm.addInstanceLifecycleListener(new StoreLifecycleListener() {

                public void preStore(InstanceLifecycleEvent event) {
                }

                public void postStore(InstanceLifecycleEvent event) {
                    storedElements.add(event.getSource());
                }
            });
            // attach the unchanged Object
            tx.begin();
            obj1 = (ClassWithNonPCCollection) pm.makePersistent(obj1);
            tx.commit();
            // test that nothing has been stored
            assertTrue(storedElements.isEmpty());
        } catch (Exception e) {
            LOG.error("Exception in test", e);
            fail(e.toString());
        } finally {
            if (tx.isActive()) {
                tx.rollback();
            }
            pm.close();
        }
    } finally {
        clean(ClassWithNonPCCollection.class);
    }
}