Examples with TransactionalQueue com.hazelcast.transaction.TransactionalQueue used on opensource projects

Example 11 with TransactionalQueue

use of com.hazelcast.transaction.TransactionalQueue in project hazelcast by hazelcast.

the class ClientTxnQueueTest method testQueueSizeAfterTxnOfferPoll.

@Test
public void testQueueSizeAfterTxnOfferPoll() {
    final String item = "offered";
    final String queueName = randomString();
    final IQueue queue = client.getQueue(queueName);
    final TransactionContext context = client.newTransactionContext();
    context.beginTransaction();
    TransactionalQueue txnQueue = context.getQueue(queueName);
    txnQueue.offer(item);
    txnQueue.poll();
    context.commitTransaction();
    assertEquals(0, queue.size());
}

Example 12 with TransactionalQueue

use of com.hazelcast.transaction.TransactionalQueue in project hazelcast by hazelcast.

the class ClientTxnTest method testTxnRollback.

@Test
public void testTxnRollback() throws Exception {
    final String queueName = randomString();
    final TransactionContext context = client.newTransactionContext();
    CountDownLatch txnRollbackLatch = new CountDownLatch(1);
    final CountDownLatch memberRemovedLatch = new CountDownLatch(1);
    client.getCluster().addMembershipListener(new MembershipAdapter() {

        @Override
        public void memberRemoved(MembershipEvent membershipEvent) {
            memberRemovedLatch.countDown();
        }
    });
    try {
        context.beginTransaction();
        assertNotNull(context.getTxnId());
        final TransactionalQueue queue = context.getQueue(queueName);
        queue.offer(randomString());
        server.shutdown();
        context.commitTransaction();
        fail("commit should throw exception!!!");
    } catch (TransactionException e) {
        context.rollbackTransaction();
        txnRollbackLatch.countDown();
    }
    assertOpenEventually(txnRollbackLatch);
    assertOpenEventually(memberRemovedLatch);
    final IQueue<Object> q = client.getQueue(queueName);
    assertNull(q.poll());
    assertEquals(0, q.size());
}

Example 13 with TransactionalQueue

use of com.hazelcast.transaction.TransactionalQueue in project hazelcast by hazelcast.

the class TransactionQueueTest method testListener_withOffer.

@Test
public void testListener_withOffer() {
    HazelcastInstance hz = createHazelcastInstance();
    String name = randomName();
    IQueue<VersionedObject<String>> queue = hz.getQueue(name);
    EventCountingItemListener listener = new EventCountingItemListener();
    queue.addItemListener(listener, true);
    hz.executeTransaction((TransactionalTask<Object>) ctx -> {
        TransactionalQueue<VersionedObject<Object>> queue1 = ctx.getQueue(name);
        return queue1.offer(new VersionedObject<>("item"));
    });
    assertTrueEventually(() -> assertEquals(1, listener.adds.get()));
}