Examples with Item org.jpwh.model.fetching.eagerselect.Item used on opensource projects

Example 1 with Item

use of org.jpwh.model.fetching.eagerselect.Item in project microservices by pwillhan.

the class EagerSelect method storeTestData.

public FetchTestData storeTestData() throws Exception {
    UserTransaction tx = TM.getUserTransaction();
    tx.begin();
    EntityManager em = JPA.createEntityManager();
    Long[] itemIds = new Long[3];
    Long[] userIds = new Long[3];
    User johndoe = new User("johndoe");
    em.persist(johndoe);
    userIds[0] = johndoe.getId();
    User janeroe = new User("janeroe");
    em.persist(janeroe);
    userIds[1] = janeroe.getId();
    User robertdoe = new User("robertdoe");
    em.persist(robertdoe);
    userIds[2] = robertdoe.getId();
    Item item = new Item("Item One", CalendarUtil.TOMORROW.getTime(), johndoe);
    em.persist(item);
    itemIds[0] = item.getId();
    for (int i = 1; i <= 3; i++) {
        Bid bid = new Bid(item, robertdoe, new BigDecimal(9 + i));
        item.getBids().add(bid);
        em.persist(bid);
    }
    item = new Item("Item Two", CalendarUtil.TOMORROW.getTime(), johndoe);
    em.persist(item);
    itemIds[1] = item.getId();
    for (int i = 1; i <= 1; i++) {
        Bid bid = new Bid(item, janeroe, new BigDecimal(2 + i));
        item.getBids().add(bid);
        em.persist(bid);
    }
    item = new Item("Item Three", CalendarUtil.AFTER_TOMORROW.getTime(), janeroe);
    em.persist(item);
    itemIds[2] = item.getId();
    tx.commit();
    em.close();
    FetchTestData testData = new FetchTestData();
    testData.items = new TestData(itemIds);
    testData.users = new TestData(userIds);
    return testData;
}

Example 2 with Item

use of org.jpwh.model.fetching.eagerselect.Item in project microservices by pwillhan.

the class EagerSelect method fetchEagerSelect.

@Test
public void fetchEagerSelect() throws Exception {
    FetchTestData testData = storeTestData();
    UserTransaction tx = TM.getUserTransaction();
    try {
        tx.begin();
        EntityManager em = JPA.createEntityManager();
        Long ITEM_ID = testData.items.getFirstId();
        Item item = em.find(Item.class, ITEM_ID);
        // select * from ITEM where ID = ?
        // select * from USERS where ID = ?
        // select * from BID where ITEM_ID = ?
        em.detach(item);
        assertEquals(item.getBids().size(), 3);
        assertNotNull(item.getBids().iterator().next().getAmount());
        assertEquals(item.getSeller().getUsername(), "johndoe");
        tx.commit();
        em.close();
    } finally {
        TM.rollback();
    }
}