Java Code Examples for javax.transaction.TransactionManager#rollback()

/** DBCP-564 */
@Test
public void testSetRollbackOnlyBeforeGetConnectionDoesNotLeak() throws Exception {
    final TransactionManager transactionManager = ((BasicManagedDataSource) ds).getTransactionManager();
    final int n = 3;
    ds.setMaxIdle(n);
    ds.setMaxTotal(n);

    for (int i = 0; i <= n; i++) { // loop n+1 times
        transactionManager.begin();
        transactionManager.setRollbackOnly();
        final Connection conn = getConnection();
        assertNotNull(conn);
        conn.close();
        transactionManager.rollback();
    }

    assertEquals(0, ds.getNumActive());
    assertEquals(1, ds.getNumIdle());
}
 

public void rollback() {
	TransactionManager txManager = getTransactionManager();
	if (txManager == null) {
           return;
       }
	try {
		txManager.rollback();				
	} catch (Exception e) {
		log.warn("Error from transaction manager when "
		        + "rollbacking: " + e.getMessage(), e);
	} finally {
		this.beginTx.set(false);
	}
}
 

protected void endTransaction(TransactionManager tm, Transaction tx, RunnableWithException afterEndTransaction)
        throws Exception {
    if (tx != tm.getTransaction()) {
        throw new RuntimeException(jtaLogger.i18NLogger.get_wrong_tx_on_thread());
    }

    if (tx.getStatus() == Status.STATUS_MARKED_ROLLBACK) {
        tm.rollback();
    } else {
        tm.commit();
    }

    afterEndTransaction.run();
}
 

public static void main(String[] args) throws Exception {
   // Construct a local cache manager
   DefaultCacheManager cacheManager = new DefaultCacheManager();
   // Create a transaction cache config
   ConfigurationBuilder builder = new ConfigurationBuilder();
   builder.transaction().transactionMode(TransactionMode.TRANSACTIONAL);
   Configuration cacheConfig = builder.build();
   // Create a cache with the config
   Cache<String, String> cache = cacheManager.administration()
           .withFlags(CacheContainerAdmin.AdminFlag.VOLATILE)
           .getOrCreateCache("cache", cacheConfig);
   // Obtain the transaction manager
   TransactionManager transactionManager = cache.getAdvancedCache().getTransactionManager();
   // Perform some operations within a transaction and commit it
   transactionManager.begin();
   cache.put("key1", "value1");
   cache.put("key2", "value2");
   transactionManager.commit();
   // Display the current cache contents
   System.out.printf("key1 = %s\nkey2 = %s\n", cache.get("key1"), cache.get("key2"));
   // Perform some operations within a transaction and roll it back
   transactionManager.begin();
   cache.put("key1", "value3");
   cache.put("key2", "value4");
   transactionManager.rollback();
   // Display the current cache contents
   System.out.printf("key1 = %s\nkey2 = %s\n", cache.get("key1"), cache.get("key2"));
   // Stop the cache manager and release all resources
   cacheManager.stop();
}
 

public void startBackgroundBatch() {
    try {
        TransactionManager tm = transactionalCache.getAdvancedCache().getTransactionManager();
        tm.begin();
        transactionalCache.put(KEY, 1000);
        System.out.println("HowManyVisits should now be 1000, " + "but we are holding the transaction");
        Thread.sleep(1000L);
        tm.rollback();
        System.out.println("The slow batch suffered a rollback");
    } catch (Exception e) {
        e.printStackTrace();
    }
}
 

public static void main(String[] args) throws Exception {
   // Create a configuration for a locally-running server
   ConfigurationBuilder builder = new ConfigurationBuilder();
   builder.addServer()
            .host("127.0.0.1")
            .port(ConfigurationProperties.DEFAULT_HOTROD_PORT)
          .security().authentication()
            //Add user credentials.
            .username("username")
            .password("password")
            .realm("default")
            .saslMechanism("DIGEST-MD5");

   // Configure the RemoteCacheManager to use a transactional cache as default
   // Use the simple TransactionManager in hot rod client
   builder.transaction().transactionManagerLookup(RemoteTransactionManagerLookup.getInstance());
   // The cache will be enlisted as Synchronization
   builder.transaction().transactionMode(TransactionMode.NON_XA);

   // Connect to the server
   RemoteCacheManager cacheManager = new RemoteCacheManager(builder.build());

   // Create a transactional cache in the server since there is none available by default.
   cacheManager.administration().createCache(CACHE_NAME, new XMLStringConfiguration(TEST_CACHE_XML_CONFIG));
   RemoteCache<String, String> cache = cacheManager.getCache(CACHE_NAME);

   // Obtain the transaction manager
   TransactionManager transactionManager = cache.getTransactionManager();
   // Perform some operations within a transaction and commit it
   transactionManager.begin();
   cache.put("key1", "value1");
   cache.put("key2", "value2");
   transactionManager.commit();
   // Display the current cache contents
   System.out.printf("key1 = %s\nkey2 = %s\n", cache.get("key1"), cache.get("key2"));
   // Perform some operations within a transaction and roll it back
   transactionManager.begin();
   cache.put("key1", "value3");
   cache.put("key2", "value4");
   transactionManager.rollback();
   // Display the current cache contents
   System.out.printf("key1 = %s\nkey2 = %s\n", cache.get("key1"), cache.get("key2"));
   // Stop the cache manager and release all resources
   cacheManager.stop();
}
 

/**
 * @throws Exception If failed.
 */
@Test
public void testJtaTxContextSwitchWithExistingTx() throws Exception {
    for (TransactionIsolation isolation : TransactionIsolation.values()) {
        TransactionConfiguration cfg = grid().context().config().getTransactionConfiguration();

        cfg.setDefaultTxConcurrency(txConcurrency);
        cfg.setDefaultTxIsolation(isolation);

        TransactionManager jtaTm = jotm.getTransactionManager();

        IgniteCache<Integer, String> cache = jcache();

        jtaTm.begin();

        Transaction tx1 = jtaTm.getTransaction();

        cache.put(1, Integer.toString(1));

        assertNotNull(grid().transactions().tx());

        assertEquals(ACTIVE, grid().transactions().tx().state());

        assertEquals(Integer.toString(1), cache.get(1));

        jtaTm.suspend();

        jtaTm.begin();

        Transaction tx2 = jtaTm.getTransaction();

        assertNotSame(tx1, tx2);

        cache.put(2, Integer.toString(2));

        try {
            jtaTm.resume(tx1);

            fail("jtaTm.resume shouldn't success.");
        }
        catch (IllegalStateException ignored) {
            // No-op.
        }
        finally {
            jtaTm.rollback(); //rolling back tx2
        }

        jtaTm.resume(tx1);
        jtaTm.rollback();

        cache.removeAll();
    }
}