Examples of org.springframework.transaction.support.TransactionTemplate

Package org.springframework.transaction.support

Examples of org.springframework.transaction.support.TransactionTemplate

org.springframework.transaction.support.TransactionTemplate
Template class that simplifies programmatic transaction demarcation and transaction exception handling.
The central method is {@link #execute}, supporting transactional code that implements the {@link TransactionCallback} interface. This template handlesthe transaction lifecycle and possible exceptions such that neither the TransactionCallback implementation nor the calling code needs to explicitly handle transactions.
Typical usage: Allows for writing low-level data access objects that use resources such as JDBC DataSources but are not transaction-aware themselves. Instead, they can implicitly participate in transactions handled by higher-level application services utilizing this class, making calls to the low-level services via an inner-class callback object.
Can be used within a service implementation via direct instantiation with a transaction manager reference, or get prepared in an application context and passed to services as bean reference. Note: The transaction manager should always be configured as bean in the application context: in the first case given to the service directly, in the second case given to the prepared template.
Supports setting the propagation behavior and the isolation level by name, for convenient configuration in context definitions. @author Juergen Hoeller @since 17.03.2003 @see #execute @see #setTransactionManager @see org.springframework.transaction.PlatformTransactionManager

    public SpringTransactionPolicy(TransactionTemplate template) {
        this.template = template;
    }


    public Processor wrap(Processor processor) {
        final TransactionTemplate transactionTemplate = getTemplate();
        if (transactionTemplate == null) {
            LOG.warn("No TransactionTemplate available so transactions will not be enabled!");
            return processor;
        }

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    sfControl.replay();
    sessionControl.replay();
    queryControl.replay();


    JtaTransactionManager ptm = new JtaTransactionManager(ut);
    TransactionTemplate tt = new TransactionTemplate(ptm);
    tt.setReadOnly(readOnly);
    assertTrue("JTA synchronizations not active", !TransactionSynchronizationManager.isSynchronizationActive());
    assertTrue("Hasn't thread session", !TransactionSynchronizationManager.hasResource(sf));


    Object result = tt.execute(new TransactionCallback() {
      public Object doInTransaction(TransactionStatus status) {
        try {
          assertTrue("JTA synchronizations active", TransactionSynchronizationManager.isSynchronizationActive());
          assertTrue("Hasn't thread session", !TransactionSynchronizationManager.hasResource(sf));
          HibernateTemplate ht = new HibernateTemplate(sf);

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    tmControl.replay();
    sfControl.replay();
    sessionControl.replay();


    JtaTransactionManager ptm = new JtaTransactionManager(ut);
    TransactionTemplate tt = new TransactionTemplate(ptm);
    final List l = new ArrayList();
    l.add("test");
    assertTrue("JTA synchronizations not active", !TransactionSynchronizationManager.isSynchronizationActive());
    assertTrue("Hasn't thread session", !TransactionSynchronizationManager.hasResource(sf));


    Object result = tt.execute(new TransactionCallback() {
      public Object doInTransaction(TransactionStatus status) {
        try {
          assertTrue("JTA synchronizations active", TransactionSynchronizationManager.isSynchronizationActive());
          assertTrue("Hasn't thread session", !TransactionSynchronizationManager.hasResource(sf));
          HibernateTemplate ht = new HibernateTemplate(sf);

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    sessionControl.setReturnValue(true, 1);
    sfControl.replay();
    sessionControl.replay();


    JtaTransactionManager ptm = new JtaTransactionManager(ut);
    TransactionTemplate tt = new TransactionTemplate(ptm);
    final List l = new ArrayList();
    l.add("test");
    final HibernateException flushEx = new HibernateException("flush failure");
    assertTrue("JTA synchronizations not active", !TransactionSynchronizationManager.isSynchronizationActive());
    assertTrue("Hasn't thread session", !TransactionSynchronizationManager.hasResource(sf));


    try {
      tt.execute(new TransactionCallback() {
        public Object doInTransaction(TransactionStatus status) {
          try {
            assertTrue("JTA synchronizations active", TransactionSynchronizationManager.isSynchronizationActive());
            assertTrue("Hasn't thread session", !TransactionSynchronizationManager.hasResource(sf));
            HibernateTemplate ht = new HibernateTemplate(sf);

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    sessionControl.setReturnValue(sf, 1);
    sfControl.replay();
    sessionControl.replay();


    JtaTransactionManager ptm = new JtaTransactionManager(ut);
    TransactionTemplate tt = new TransactionTemplate(ptm);
    final List l = new ArrayList();
    l.add("test");
    assertTrue("JTA synchronizations not active", !TransactionSynchronizationManager.isSynchronizationActive());


    Object result = tt.execute(new TransactionCallback() {
      public Object doInTransaction(TransactionStatus status) {
        try {
          assertTrue("JTA synchronizations active", TransactionSynchronizationManager.isSynchronizationActive());
          HibernateTemplate ht = new HibernateTemplate(sf);
          List htl = ht.executeFind(new HibernateCallback() {

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    sessionControl.replay();


    TransactionSynchronizationManager.bindResource(sf, new SessionHolder(session));
    try {
      JtaTransactionManager ptm = new JtaTransactionManager(ut);
      TransactionTemplate tt = new TransactionTemplate(ptm);
      tt.setReadOnly(readOnly);
      final List l = new ArrayList();
      l.add("test");
      assertTrue("JTA synchronizations not active", !TransactionSynchronizationManager.isSynchronizationActive());
      assertTrue("Has thread session", TransactionSynchronizationManager.hasResource(sf));


      Object result = tt.execute(new TransactionCallback() {
        public Object doInTransaction(TransactionStatus status) {
          try {
            assertTrue("JTA synchronizations active", TransactionSynchronizationManager.isSynchronizationActive());
            assertTrue("Has thread session", TransactionSynchronizationManager.hasResource(sf));
            HibernateTemplate ht = new HibernateTemplate(sf);

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    sessionControl.replay();


    TransactionSynchronizationManager.bindResource(sf, new SessionHolder(session));
    try {
      JtaTransactionManager ptm = new JtaTransactionManager(ut);
      final TransactionTemplate tt = new TransactionTemplate(ptm);
      assertTrue("JTA synchronizations not active", !TransactionSynchronizationManager.isSynchronizationActive());
      assertTrue("Has thread session", TransactionSynchronizationManager.hasResource(sf));


      tt.execute(new TransactionCallbackWithoutResult() {
        public void doInTransactionWithoutResult(TransactionStatus status) {
          tt.execute(new TransactionCallbackWithoutResult() {
            public void doInTransactionWithoutResult(TransactionStatus status) {
              status.setRollbackOnly();
              try {
                assertTrue("JTA synchronizations active", TransactionSynchronizationManager.isSynchronizationActive());
                assertTrue("Has thread session", TransactionSynchronizationManager.hasResource(sf));

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    session2Control.replay();


    JtaTransactionManager ptm = new JtaTransactionManager();
    ptm.setUserTransaction(ut);
    ptm.setTransactionManager(tm);
    final TransactionTemplate tt = new TransactionTemplate(ptm);
    tt.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRES_NEW);


    assertTrue("Hasn't thread session", !TransactionSynchronizationManager.hasResource(sf));
    try {
      tt.execute(new TransactionCallback() {
        public Object doInTransaction(TransactionStatus status) {
          org.hibernate.Session outerSession = SessionFactoryUtils.getSession(sf, false);
          assertSame(session1, outerSession);
          SessionHolder holder = (SessionHolder) TransactionSynchronizationManager.getResource(sf);
          assertTrue("Has thread session", holder != null);
          try {
            tt.execute(new TransactionCallback() {
              public Object doInTransaction(TransactionStatus status) {
                org.hibernate.Session innerSession = SessionFactoryUtils.getSession(sf, false);
                assertSame(session2, innerSession);
                HibernateTemplate ht = new HibernateTemplate(sf);
                ht.setFlushMode(HibernateTemplate.FLUSH_EAGER);

View Full Code Here

    session1Control.replay();


    JtaTransactionManager ptm = new JtaTransactionManager();
    ptm.setUserTransaction(ut);
    ptm.setTransactionManager(tm);
    final TransactionTemplate tt = new TransactionTemplate(ptm);
    tt.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRES_NEW);


    assertTrue("Hasn't thread session", !TransactionSynchronizationManager.hasResource(sf));
    try {
      tt.execute(new TransactionCallback() {
        public Object doInTransaction(TransactionStatus status) {
          org.hibernate.Session outerSession = SessionFactoryUtils.getSession(sf, false);
          assertSame(session1, outerSession);
          SessionHolder holder = (SessionHolder) TransactionSynchronizationManager.getResource(sf);
          assertTrue("Has thread session", holder != null);
          tt.execute(new TransactionCallback() {
            public Object doInTransaction(TransactionStatus status) {
              return null;
            }
          });
          return null;

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    session2Control.replay();


    JtaTransactionManager ptm = new JtaTransactionManager();
    ptm.setUserTransaction(ut);
    ptm.setTransactionManager(tm);
    final TransactionTemplate tt = new TransactionTemplate(ptm);
    tt.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRES_NEW);


    assertTrue("Hasn't thread session", !TransactionSynchronizationManager.hasResource(sf));
    try {
      tt.execute(new TransactionCallback() {
        public Object doInTransaction(TransactionStatus status) {
          org.hibernate.Session outerSession = SessionFactoryUtils.getSession(sf, false);
          assertSame(session1, outerSession);
          SessionHolder holder = (SessionHolder) TransactionSynchronizationManager.getResource(sf);
          assertTrue("Has thread session", holder != null);
          try {
            tt.execute(new TransactionCallback() {
              public Object doInTransaction(TransactionStatus status) {
                org.hibernate.Session innerSession = SessionFactoryUtils.getSession(sf, false);
                assertSame(session2, innerSession);
                HibernateTemplate ht = new HibernateTemplate(sf);
                ht.setFlushMode(HibernateTemplate.FLUSH_EAGER);

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