Examples of org.springframework.transaction.support.TransactionCallback

Package org.springframework.transaction.support

Examples of org.springframework.transaction.support.TransactionCallback

org.springframework.transaction.support.TransactionCallback
Callback interface for transactional code. Used with {@link TransactionTemplate}'s execute method, often as anonymous class within a method implementation.
Typically used to assemble various calls to transaction-unaware data access services into a higher-level service method with transaction demarcation. As an alternative, consider the use of declarative transaction demarcation (e.g. through Spring's {@link org.springframework.transaction.annotation.Transactional} annotation). @author Juergen Hoeller @since 17.03.2003 @see TransactionTemplate @see CallbackPreferringPlatformTransactionManager

    assertTrue(!TransactionSynchronizationManager.hasResource(factory));
    assertTrue(!TransactionSynchronizationManager.isSynchronizationActive());
    TransactionSynchronizationManager.bindResource(factory, new EntityManagerHolder(manager));


    try {
      tt.execute(new TransactionCallback() {
        public Object doInTransaction(TransactionStatus status) {
          assertTrue(TransactionSynchronizationManager.hasResource(factory));
          assertTrue(TransactionSynchronizationManager.isSynchronizationActive());
          template.execute(new JpaCallback() {
            public Object doInJpa(EntityManager em) {

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    assertTrue(!TransactionSynchronizationManager.hasResource(factory));
    assertTrue(!TransactionSynchronizationManager.isSynchronizationActive());
    TransactionSynchronizationManager.bindResource(factory, new EntityManagerHolder(manager));


    try {
      Object result = tt.execute(new TransactionCallback() {
        public Object doInTransaction(TransactionStatus status) {
          assertTrue(TransactionSynchronizationManager.hasResource(factory));
          assertTrue(TransactionSynchronizationManager.isSynchronizationActive());
          assertTrue(!status.isNewTransaction());
          return template.execute(new JpaCallback() {

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    assertTrue(!TransactionSynchronizationManager.hasResource(factory));
    assertTrue(!TransactionSynchronizationManager.isSynchronizationActive());
    TransactionSynchronizationManager.bindResource(factory, new EntityManagerHolder(manager));


    try {
      tt.execute(new TransactionCallback() {
        public Object doInTransaction(TransactionStatus status) {
          assertTrue(TransactionSynchronizationManager.hasResource(factory));
          assertTrue(TransactionSynchronizationManager.isSynchronizationActive());
          assertTrue(!status.isNewTransaction());
          template.execute(new JpaCallback() {

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    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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    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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    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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    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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      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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    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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    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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