Examples with UserTransaction javax.transaction.UserTransaction used on opensource projects

Example 96 with UserTransaction

use of javax.transaction.UserTransaction in project microservices by pwillhan.

the class CustomSchema method storeLoadCheckSingleRowInvalid.

@Test(expectedExceptions = org.hibernate.exception.ConstraintViolationException.class)
public void storeLoadCheckSingleRowInvalid() throws Throwable {
    UserTransaction tx = TM.getUserTransaction();
    try {
        tx.begin();
        EntityManager em = JPA.createEntityManager();
        // Wrong start/end time
        Item item = new Item("Some Item", CalendarUtil.TOMORROW.getTime(), CalendarUtil.TODAY.getTime());
        em.persist(item);
        try {
            em.flush();
        } catch (Exception ex) {
            throw unwrapCauseOfType(ex, org.hibernate.exception.ConstraintViolationException.class);
        }
    } finally {
        TM.rollback();
    }
}

Example 97 with UserTransaction

use of javax.transaction.UserTransaction in project microservices by pwillhan.

the class CustomSchema method storeLoadValid.

// The control
@Test
public void storeLoadValid() throws Exception {
    UserTransaction tx = TM.getUserTransaction();
    try {
        tx.begin();
        EntityManager em = JPA.createEntityManager();
        User user = new User();
        user.setEmail("valid@test.com");
        user.setUsername("someuser");
        em.persist(user);
        user = new User();
        user.setEmail("valid2@test.com");
        user.setUsername("otheruser");
        em.persist(user);
        tx.commit();
        em.close();
        tx.begin();
        em = JPA.createEntityManager();
        user = em.find(User.class, user.getId());
        assertEquals(user.getUsername(), "otheruser");
        tx.commit();
        em.close();
    } finally {
        TM.rollback();
    }
}

Example 98 with UserTransaction

use of javax.transaction.UserTransaction in project microservices by pwillhan.

the class HelloWorldJPA method storeLoadMessage.

@Test
public void storeLoadMessage() throws Exception {
    EntityManagerFactory emf = Persistence.createEntityManagerFactory("HelloWorldPU");
    try {
        {
            /* 
                    Get access to the standard transaction API <code>UserTransaction</code> and
                    begin a transaction on this thread of execution.
                 */
            UserTransaction tx = TM.getUserTransaction();
            tx.begin();
            /* 
                    Begin a new session with the database by creating an <code>EntityManager</code>, this
                    is your context for all persistence operations.
                 */
            EntityManager em = emf.createEntityManager();
            /* 
                    Create a new instance of the mapped domain model class <code>Message</code> and
                    set its <code>text</code> property.
                 */
            Message message = new Message();
            message.setText("Hello World!");
            /* 
                    Enlist the transient instance with your persistence context, you make it persistent.
                    Hibernate now knows that you wish to store that data, it doesn't necessarily call the
                    database immediately, however.
                 */
            em.persist(message);
            /* 
                    Commit the transaction, Hibernate now automatically checks the persistence context and
                    executes the necessary SQL <code>INSERT</code> statement.
                 */
            tx.commit();
            // INSERT into MESSAGE (ID, TEXT) values (1, 'Hello World!')
            /* 
                    If you create an <code>EntityManager</code>, you must close it.
                 */
            em.close();
        }
        {
            /* 
                    Every interaction with your database should occur within explicit transaction boundaries,
                    even if you are only reading data.
                 */
            UserTransaction tx = TM.getUserTransaction();
            tx.begin();
            EntityManager em = emf.createEntityManager();
            /* 
                    Execute a query to retrieve all instances of <code>Message</code> from the database.
                 */
            List<Message> messages = em.createQuery("select m from Message m").getResultList();
            // SELECT * from MESSAGE
            assertEquals(messages.size(), 1);
            assertEquals(messages.get(0).getText(), "Hello World!");
            /* 
                    You can change the value of a property, Hibernate will detect this automatically because
                    the loaded <code>Message</code> is still attached to the persistence context it was loaded in.
                 */
            messages.get(0).setText("Take me to your leader!");
            /* 
                    On commit, Hibernate checks the persistence context for dirty state and executes the
                    SQL <code>UPDATE</code> automatically to synchronize the in-memory with the database state.
                 */
            tx.commit();
            // UPDATE MESSAGE set TEXT = 'Take me to your leader!' where ID = 1
            em.close();
        }
    } finally {
        TM.rollback();
        emf.close();
    }
}

Example 99 with UserTransaction

use of javax.transaction.UserTransaction in project microservices by pwillhan.

the class AccessType method storeLoadAccessType.

@Test
public void storeLoadAccessType() throws Exception {
    UserTransaction tx = TM.getUserTransaction();
    try {
        tx.begin();
        EntityManager em = JPA.createEntityManager();
        Item someItem = new Item();
        someItem.setName("Some item");
        someItem.setDescription("This is some description.");
        em.persist(someItem);
        tx.commit();
        em.close();
        Long ITEM_ID = someItem.getId();
        tx.begin();
        em = JPA.createEntityManager();
        Item item = em.find(Item.class, ITEM_ID);
        assertEquals(item.getName(), "AUCTION: Some item");
        tx.commit();
        em.close();
    } finally {
        TM.rollback();
    }
}

Example 100 with UserTransaction

use of javax.transaction.UserTransaction in project microservices by pwillhan.

the class DerivedProperties method storeItemAndBids.

public Long storeItemAndBids() throws Exception {
    UserTransaction tx = TM.getUserTransaction();
    tx.begin();
    EntityManager em = JPA.createEntityManager();
    Item item = new Item();
    item.setName("Some item");
    item.setDescription("This is some description.");
    em.persist(item);
    for (int i = 1; i <= 3; i++) {
        Bid bid = new Bid();
        bid.setAmount(new BigDecimal(10 + i));
        bid.setItem(item);
        em.persist(bid);
    }
    tx.commit();
    em.close();
    return item.getId();
}