Examples with PCFKSetElement org.jpox.samples.one_many.collection.PCFKSetElement used on opensource projects

Example 1 with PCFKSetElement

use of org.jpox.samples.one_many.collection.PCFKSetElement in project tests by datanucleus.

the class RelationshipTest method test1toNunidirFK.

/**
 * Test case for 1-N unidir using FK.
 */
public void test1toNunidirFK() throws Exception {
    try {
        PersistenceManager pm = pmf.getPersistenceManager();
        Transaction tx = pm.currentTransaction();
        Object holderId = null;
        // Check the persistence of owner and elements
        try {
            tx.begin();
            // Create some data
            SetHolder holder = new SetHolder("First");
            PCFKSetElement elem1 = new PCFKSetElement("Element 1");
            PCFKSetElement elem2 = new PCFKSetElement("Element 2");
            holder.getFkSetPC().add(elem1);
            holder.getFkSetPC().add(elem2);
            pm.makePersistent(holder);
            tx.commit();
            holderId = pm.getObjectId(holder);
        } catch (Exception e) {
            LOG.error("Exception in test", e);
            fail("Exception thrown while creating 1-N uni FK relationships : " + e.getMessage());
        } finally {
            if (tx.isActive()) {
                tx.rollback();
            }
            pm.close();
        }
        // Check the retrieval of the owner and elements
        pm = pmf.getPersistenceManager();
        tx = pm.currentTransaction();
        try {
            tx.begin();
            SetHolder holder = (SetHolder) pm.getObjectById(holderId);
            assertNotNull("Unable to retrieve container object for 1-N uni FK relationship", holder);
            Collection elements = holder.getFkSetPC();
            assertNotNull("Elements in holder are null!", elements);
            assertEquals("Number of elements in holder is incorrect", 2, elements.size());
            Iterator roomsIter = elements.iterator();
            while (roomsIter.hasNext()) {
                roomsIter.next();
            }
            tx.commit();
        } catch (Exception e) {
            LOG.error("Exception in test", e);
            fail("Exception thrown while querying 1-N uni FK relationships : " + e.getMessage());
        } finally {
            if (tx.isActive()) {
                tx.rollback();
            }
        }
        pm.close();
    } finally {
        // Clean out our data
        clean(SetHolder.class);
        clean(PCFKSetElement.class);
    }
}