Example usage for org.hibernate FlushMode AUTO

List of usage examples for org.hibernate FlushMode AUTO

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Prototype

FlushMode AUTO

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Document

The Session is sometimes flushed before query execution in order to ensure that queries never return stale state.

Usage

From source file:org.springframework.orm.hibernate4.HibernateTransactionManagerTests.java

License:Apache License

@Test
public void testTransactionWithPropagationSupportsAndInnerTransaction() throws Exception {
    final SessionFactory sf = mock(SessionFactory.class);
    final ImplementingSession session1 = mock(ImplementingSession.class);
    final ImplementingSession session2 = mock(ImplementingSession.class);
    Connection con = mock(Connection.class);
    Transaction tx = mock(Transaction.class);

    given(sf.openSession()).willReturn(session1, session2);
    given(session1.getSessionFactory()).willReturn(sf);
    given(session1.getFlushMode()).willReturn(FlushMode.AUTO);
    given(session2.beginTransaction()).willReturn(tx);
    given(session2.connection()).willReturn(con);
    given(session2.getFlushMode()).willReturn(FlushMode.AUTO);
    given(session2.isOpen()).willReturn(true);
    given(session2.isConnected()).willReturn(true);

    LocalSessionFactoryBean lsfb = new LocalSessionFactoryBean() {
        @Override//from  w  w w.j a  v  a  2  s .c  o m
        protected SessionFactory buildSessionFactory(LocalSessionFactoryBuilder sfb) {
            return sf;
        }
    };
    lsfb.afterPropertiesSet();
    final SessionFactory sfProxy = lsfb.getObject();

    PlatformTransactionManager tm = new HibernateTransactionManager(sfProxy);
    TransactionTemplate tt = new TransactionTemplate(tm);
    tt.setPropagationBehavior(TransactionDefinition.PROPAGATION_SUPPORTS);
    final TransactionTemplate tt2 = new TransactionTemplate(tm);
    tt2.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRED);

    assertTrue("Hasn't thread session", !TransactionSynchronizationManager.hasResource(sf));
    tt.execute(new TransactionCallback() {
        @Override
        public Object doInTransaction(TransactionStatus status) {
            assertTrue("Hasn't thread session", !TransactionSynchronizationManager.hasResource(sfProxy));
            assertTrue("Is not new transaction", !status.isNewTransaction());
            assertFalse(TransactionSynchronizationManager.isCurrentTransactionReadOnly());
            assertFalse(TransactionSynchronizationManager.isActualTransactionActive());
            Session session = sfProxy.openSession();
            assertSame(session1, session);
            tt2.execute(new TransactionCallback() {
                @Override
                public Object doInTransaction(TransactionStatus status) {
                    assertFalse(TransactionSynchronizationManager.isCurrentTransactionReadOnly());
                    assertTrue(TransactionSynchronizationManager.isActualTransactionActive());
                    Session session = ((SessionHolder) TransactionSynchronizationManager.getResource(sf))
                            .getSession();
                    assertSame(session2, session);
                    session.flush();
                    return null;
                }
            });
            session.flush();
            session.close();
            assertFalse(TransactionSynchronizationManager.isCurrentTransactionReadOnly());
            assertFalse(TransactionSynchronizationManager.isActualTransactionActive());
            return null;
        }
    });
    assertTrue("Hasn't thread session", !TransactionSynchronizationManager.hasResource(sf));

    verify(session1).flush();
    verify(session1).close();
    verify(session2).flush();
    verify(session2).close();
    verify(tx).commit();
}

From source file:org.springframework.orm.hibernate4.HibernateTransactionManagerTests.java

License:Apache License

@Test
public void testTransactionCommitWithPreBound() throws Exception {
    final DataSource ds = mock(DataSource.class);
    Connection con = mock(Connection.class);
    final SessionFactory sf = mock(SessionFactory.class);
    final ImplementingSession session = mock(ImplementingSession.class);
    Transaction tx = mock(Transaction.class);

    given(session.beginTransaction()).willReturn(tx);
    given(session.isOpen()).willReturn(true);
    given(session.getFlushMode()).willReturn(FlushMode.MANUAL);
    given(session.connection()).willReturn(con);
    given(con.getTransactionIsolation()).willReturn(Connection.TRANSACTION_READ_COMMITTED);
    given(session.isConnected()).willReturn(true);

    HibernateTransactionManager tm = new HibernateTransactionManager();
    tm.setSessionFactory(sf);/*from   w w w  . j  a  v a 2  s.  c om*/
    tm.setDataSource(ds);
    TransactionTemplate tt = new TransactionTemplate(tm);
    tt.setIsolationLevel(TransactionDefinition.ISOLATION_SERIALIZABLE);
    final List l = new ArrayList();
    l.add("test");
    assertTrue("Hasn't thread connection", !TransactionSynchronizationManager.hasResource(ds));
    assertTrue("JTA synchronizations not active", !TransactionSynchronizationManager.isSynchronizationActive());
    TransactionSynchronizationManager.bindResource(sf, new SessionHolder(session));
    assertTrue("Has thread session", TransactionSynchronizationManager.hasResource(sf));

    Object result = tt.execute(new TransactionCallback() {
        @Override
        public Object doInTransaction(TransactionStatus status) {
            assertTrue("Has thread session", TransactionSynchronizationManager.hasResource(sf));
            assertTrue("Has thread connection", TransactionSynchronizationManager.hasResource(ds));
            SessionHolder sessionHolder = (SessionHolder) TransactionSynchronizationManager.getResource(sf);
            assertTrue("Has thread transaction", sessionHolder.getTransaction() != null);
            Session sess = ((SessionHolder) TransactionSynchronizationManager.getResource(sf)).getSession();
            assertEquals(session, sess);
            return l;
        }
    });
    assertTrue("Correct result list", result == l);

    assertTrue("Has thread session", TransactionSynchronizationManager.hasResource(sf));
    SessionHolder sessionHolder = (SessionHolder) TransactionSynchronizationManager.getResource(sf);
    assertTrue("Hasn't thread transaction", sessionHolder.getTransaction() == null);
    TransactionSynchronizationManager.unbindResource(sf);
    assertTrue("Hasn't thread connection", !TransactionSynchronizationManager.hasResource(ds));
    assertTrue("JTA synchronizations not active", !TransactionSynchronizationManager.isSynchronizationActive());

    InOrder ordered = inOrder(session, con);
    ordered.verify(con).setTransactionIsolation(Connection.TRANSACTION_SERIALIZABLE);
    ordered.verify(session).setFlushMode(FlushMode.AUTO);
    ordered.verify(con).setTransactionIsolation(Connection.TRANSACTION_READ_COMMITTED);
    ordered.verify(session).setFlushMode(FlushMode.MANUAL);
    verify(tx).commit();
    verify(session).disconnect();
}

From source file:org.springframework.orm.hibernate4.HibernateTransactionManagerTests.java

License:Apache License

@Test
public void testTransactionCommitWithPreBoundAndResultAccessAfterCommit() throws Exception {
    final DataSource ds = mock(DataSource.class);
    Connection con = mock(Connection.class);
    final SessionFactory sf = mock(SessionFactory.class);
    final ImplementingSession session = mock(ImplementingSession.class);
    Transaction tx = mock(Transaction.class);

    given(session.beginTransaction()).willReturn(tx);
    given(session.isOpen()).willReturn(true);
    given(session.getFlushMode()).willReturn(FlushMode.MANUAL);
    given(session.connection()).willReturn(con);
    given(con.getTransactionIsolation()).willReturn(Connection.TRANSACTION_READ_COMMITTED);
    given(con.getHoldability()).willReturn(ResultSet.CLOSE_CURSORS_AT_COMMIT);
    given(session.isConnected()).willReturn(true);

    HibernateTransactionManager tm = new HibernateTransactionManager();
    tm.setSessionFactory(sf);//from   www.  j  av  a 2 s  .c  o m
    tm.setDataSource(ds);
    tm.setAllowResultAccessAfterCompletion(true);
    TransactionTemplate tt = new TransactionTemplate(tm);
    tt.setIsolationLevel(TransactionDefinition.ISOLATION_SERIALIZABLE);
    final List l = new ArrayList();
    l.add("test");
    assertTrue("Hasn't thread connection", !TransactionSynchronizationManager.hasResource(ds));
    assertTrue("JTA synchronizations not active", !TransactionSynchronizationManager.isSynchronizationActive());
    TransactionSynchronizationManager.bindResource(sf, new SessionHolder(session));
    assertTrue("Has thread session", TransactionSynchronizationManager.hasResource(sf));

    Object result = tt.execute(new TransactionCallback() {
        @Override
        public Object doInTransaction(TransactionStatus status) {
            assertTrue("Has thread session", TransactionSynchronizationManager.hasResource(sf));
            assertTrue("Has thread connection", TransactionSynchronizationManager.hasResource(ds));
            SessionHolder sessionHolder = (SessionHolder) TransactionSynchronizationManager.getResource(sf);
            assertTrue("Has thread transaction", sessionHolder.getTransaction() != null);
            Session sess = ((SessionHolder) TransactionSynchronizationManager.getResource(sf)).getSession();
            assertEquals(session, sess);
            return l;
        }
    });
    assertTrue("Correct result list", result == l);

    assertTrue("Has thread session", TransactionSynchronizationManager.hasResource(sf));
    SessionHolder sessionHolder = (SessionHolder) TransactionSynchronizationManager.getResource(sf);
    assertTrue("Hasn't thread transaction", sessionHolder.getTransaction() == null);
    TransactionSynchronizationManager.unbindResource(sf);
    assertTrue("Hasn't thread connection", !TransactionSynchronizationManager.hasResource(ds));
    assertTrue("JTA synchronizations not active", !TransactionSynchronizationManager.isSynchronizationActive());

    InOrder ordered = inOrder(session, con);
    ordered.verify(con).setTransactionIsolation(Connection.TRANSACTION_SERIALIZABLE);
    ordered.verify(con).setHoldability(ResultSet.HOLD_CURSORS_OVER_COMMIT);
    ordered.verify(session).setFlushMode(FlushMode.AUTO);
    ordered.verify(con).setHoldability(ResultSet.CLOSE_CURSORS_AT_COMMIT);
    ordered.verify(con).setTransactionIsolation(Connection.TRANSACTION_READ_COMMITTED);
    ordered.verify(session).setFlushMode(FlushMode.MANUAL);
    verify(tx).commit();
}

From source file:org.springframework.orm.hibernate4.HibernateTransactionManagerTests.java

License:Apache License

@Test
public void testTransactionRollbackWithPreBound() throws Exception {
    final DataSource ds = mock(DataSource.class);
    Connection con = mock(Connection.class);
    final SessionFactory sf = mock(SessionFactory.class);
    final ImplementingSession session = mock(ImplementingSession.class);
    final Transaction tx1 = mock(Transaction.class);
    final Transaction tx2 = mock(Transaction.class);

    given(session.beginTransaction()).willReturn(tx1, tx2);
    given(session.isOpen()).willReturn(true);
    given(session.getFlushMode()).willReturn(FlushMode.MANUAL);
    given(session.isConnected()).willReturn(true);
    given(session.connection()).willReturn(con);

    HibernateTransactionManager tm = new HibernateTransactionManager();
    tm.setSessionFactory(sf);// w w w .j av  a2s.  c om
    tm.setDataSource(ds);
    final TransactionTemplate tt = new TransactionTemplate(tm);
    assertTrue("Hasn't thread connection", !TransactionSynchronizationManager.hasResource(ds));
    assertTrue("JTA synchronizations not active", !TransactionSynchronizationManager.isSynchronizationActive());
    TransactionSynchronizationManager.bindResource(sf, new SessionHolder(session));
    assertTrue("Has thread session", TransactionSynchronizationManager.hasResource(sf));

    try {
        tt.execute(new TransactionCallbackWithoutResult() {
            @Override
            public void doInTransactionWithoutResult(TransactionStatus status) {
                assertTrue("Has thread session", TransactionSynchronizationManager.hasResource(sf));
                assertTrue("Has thread connection", TransactionSynchronizationManager.hasResource(ds));
                SessionHolder sessionHolder = (SessionHolder) TransactionSynchronizationManager.getResource(sf);
                assertEquals(tx1, sessionHolder.getTransaction());
                tt.execute(new TransactionCallbackWithoutResult() {
                    @Override
                    public void doInTransactionWithoutResult(TransactionStatus status) {
                        status.setRollbackOnly();
                        Session sess = ((SessionHolder) TransactionSynchronizationManager.getResource(sf))
                                .getSession();
                        assertEquals(session, sess);
                    }
                });
            }
        });
        fail("Should have thrown UnexpectedRollbackException");
    } catch (UnexpectedRollbackException ex) {
        // expected
    }

    assertTrue("Has thread session", TransactionSynchronizationManager.hasResource(sf));
    SessionHolder sessionHolder = (SessionHolder) TransactionSynchronizationManager.getResource(sf);
    assertTrue("Hasn't thread transaction", sessionHolder.getTransaction() == null);
    assertTrue("Not marked rollback-only", !sessionHolder.isRollbackOnly());

    tt.execute(new TransactionCallbackWithoutResult() {
        @Override
        public void doInTransactionWithoutResult(TransactionStatus status) {
            assertTrue("Has thread session", TransactionSynchronizationManager.hasResource(sf));
            assertTrue("Has thread connection", TransactionSynchronizationManager.hasResource(ds));
            SessionHolder sessionHolder = (SessionHolder) TransactionSynchronizationManager.getResource(sf);
            assertEquals(tx2, sessionHolder.getTransaction());
            Session sess = ((SessionHolder) TransactionSynchronizationManager.getResource(sf)).getSession();
            assertEquals(session, sess);
        }
    });

    assertTrue("Has thread session", TransactionSynchronizationManager.hasResource(sf));
    assertTrue("Hasn't thread transaction", sessionHolder.getTransaction() == null);
    TransactionSynchronizationManager.unbindResource(sf);
    assertTrue("Hasn't thread connection", !TransactionSynchronizationManager.hasResource(ds));
    assertTrue("JTA synchronizations not active", !TransactionSynchronizationManager.isSynchronizationActive());

    verify(tx1).rollback();
    verify(tx2).commit();
    InOrder ordered = inOrder(session);
    ordered.verify(session).clear();
    ordered.verify(session).setFlushMode(FlushMode.AUTO);
    ordered.verify(session).setFlushMode(FlushMode.MANUAL);
    ordered.verify(session).disconnect();
}

From source file:org.springframework.orm.hibernate4.HibernateTransactionManagerTests.java

License:Apache License

@Test
public void testTransactionRollbackWithHibernateManagedSession() throws Exception {
    final SessionFactory sf = mock(SessionFactory.class);
    final Session session = mock(Session.class);
    final Transaction tx1 = mock(Transaction.class);
    final Transaction tx2 = mock(Transaction.class);

    given(sf.getCurrentSession()).willReturn(session);
    given(session.isOpen()).willReturn(true);
    given(session.getTransaction()).willReturn(tx1, tx2);
    given(session.beginTransaction()).willReturn(tx1, tx2);
    given(session.getFlushMode()).willReturn(FlushMode.MANUAL);

    HibernateTransactionManager tm = new HibernateTransactionManager();
    tm.setSessionFactory(sf);//from   w  ww  . ja  va2s. c o m
    tm.setPrepareConnection(false);
    tm.setHibernateManagedSession(true);
    final TransactionTemplate tt = new TransactionTemplate(tm);

    assertTrue("Hasn't thread session", !TransactionSynchronizationManager.hasResource(sf));

    try {
        tt.execute(new TransactionCallbackWithoutResult() {
            @Override
            public void doInTransactionWithoutResult(TransactionStatus status) {
                assertTrue("Has thread session", TransactionSynchronizationManager.hasResource(sf));
                tt.execute(new TransactionCallbackWithoutResult() {
                    @Override
                    public void doInTransactionWithoutResult(TransactionStatus status) {
                        status.setRollbackOnly();
                        Session sess = ((SessionHolder) TransactionSynchronizationManager.getResource(sf))
                                .getSession();
                        assertEquals(session, sess);
                    }
                });
            }
        });
        fail("Should have thrown UnexpectedRollbackException");
    } catch (UnexpectedRollbackException ex) {
        // expected
    }

    assertTrue("Hasn't thread session", !TransactionSynchronizationManager.hasResource(sf));

    tt.execute(new TransactionCallbackWithoutResult() {
        @Override
        public void doInTransactionWithoutResult(TransactionStatus status) {
            assertTrue("Has thread session", TransactionSynchronizationManager.hasResource(sf));
            Session sess = ((SessionHolder) TransactionSynchronizationManager.getResource(sf)).getSession();
            assertEquals(session, sess);
        }
    });

    verify(tx1).rollback();
    verify(tx2).commit();
    InOrder ordered = inOrder(session);
    ordered.verify(session).setFlushMode(FlushMode.AUTO);
    ordered.verify(session).setFlushMode(FlushMode.MANUAL);
}

From source file:org.springframework.orm.hibernate4.SpringSessionContext.java

License:Apache License

/**
 * Retrieve the Spring-managed Session for the current thread, if any.
 *///from  w ww  .  j a  v  a  2 s  .c  om
@Override
public Session currentSession() throws HibernateException {
    Object value = TransactionSynchronizationManager.getResource(this.sessionFactory);
    if (value instanceof Session) {
        return (Session) value;
    } else if (value instanceof SessionHolder) {
        SessionHolder sessionHolder = (SessionHolder) value;
        Session session = sessionHolder.getSession();
        if (!sessionHolder.isSynchronizedWithTransaction()
                && TransactionSynchronizationManager.isSynchronizationActive()) {
            TransactionSynchronizationManager.registerSynchronization(
                    new SpringSessionSynchronization(sessionHolder, this.sessionFactory, false));
            sessionHolder.setSynchronizedWithTransaction(true);
            // Switch to FlushMode.AUTO, as we have to assume a thread-bound Session
            // with FlushMode.MANUAL, which needs to allow flushing within the transaction.
            FlushMode flushMode = session.getFlushMode();
            if (flushMode.equals(FlushMode.MANUAL)
                    && !TransactionSynchronizationManager.isCurrentTransactionReadOnly()) {
                session.setFlushMode(FlushMode.AUTO);
                sessionHolder.setPreviousFlushMode(flushMode);
            }
        }
        return session;
    }

    if (this.transactionManager != null) {
        try {
            if (this.transactionManager.getStatus() == Status.STATUS_ACTIVE) {
                Session session = this.jtaSessionContext.currentSession();
                if (TransactionSynchronizationManager.isSynchronizationActive()) {
                    TransactionSynchronizationManager
                            .registerSynchronization(new SpringFlushSynchronization(session));
                }
                return session;
            }
        } catch (SystemException ex) {
            throw new HibernateException("JTA TransactionManager found but status check failed", ex);
        }
    }

    if (TransactionSynchronizationManager.isSynchronizationActive()) {
        Session session = this.sessionFactory.openSession();
        if (TransactionSynchronizationManager.isCurrentTransactionReadOnly()) {
            session.setFlushMode(FlushMode.MANUAL);
        }
        SessionHolder sessionHolder = new SessionHolder(session);
        TransactionSynchronizationManager.registerSynchronization(
                new SpringSessionSynchronization(sessionHolder, this.sessionFactory, true));
        TransactionSynchronizationManager.bindResource(this.sessionFactory, sessionHolder);
        sessionHolder.setSynchronizedWithTransaction(true);
        return session;
    } else {
        throw new HibernateException("Could not obtain transaction-synchronized Session for current thread");
    }
}

From source file:org.springframework.orm.hibernate43.HibernateTransactionManager.java

License:Apache License

@Override
protected void doBegin(Object transaction, TransactionDefinition definition) {
    HibernateTransactionObject txObject = (HibernateTransactionObject) transaction;

    if (txObject.hasConnectionHolder() && !txObject.getConnectionHolder().isSynchronizedWithTransaction()) {
        throw new IllegalTransactionStateException(
                "Pre-bound JDBC Connection found! HibernateTransactionManager does not support "
                        + "running within DataSourceTransactionManager if told to manage the DataSource itself. "
                        + "It is recommended to use a single HibernateTransactionManager for all transactions "
                        + "on a single DataSource, no matter whether Hibernate or JDBC access.");
    }//from  w  ww .ja  va  2 s  .c  o  m

    Session session = null;

    try {
        if (txObject.getSessionHolder() == null
                || txObject.getSessionHolder().isSynchronizedWithTransaction()) {
            Interceptor entityInterceptor = getEntityInterceptor();
            Session newSession = (entityInterceptor != null
                    ? getSessionFactory().withOptions().interceptor(entityInterceptor).openSession()
                    : getSessionFactory().openSession());
            if (logger.isDebugEnabled()) {
                logger.debug("Opened new Session [" + newSession + "] for Hibernate transaction");
            }
            txObject.setSession(newSession);
        }

        session = txObject.getSessionHolder().getSession();

        if (this.prepareConnection && isSameConnectionForEntireSession(session)) {
            // We're allowed to change the transaction settings of the JDBC Connection.
            if (logger.isDebugEnabled()) {
                logger.debug("Preparing JDBC Connection of Hibernate Session [" + session + "]");
            }
            Connection con = ((SessionImplementor) session).connection();
            Integer previousIsolationLevel = DataSourceUtils.prepareConnectionForTransaction(con, definition);
            txObject.setPreviousIsolationLevel(previousIsolationLevel);
        } else {
            // Not allowed to change the transaction settings of the JDBC Connection.
            if (definition.getIsolationLevel() != TransactionDefinition.ISOLATION_DEFAULT) {
                // We should set a specific isolation level but are not allowed to...
                throw new InvalidIsolationLevelException(
                        "HibernateTransactionManager is not allowed to support custom isolation levels: "
                                + "make sure that its 'prepareConnection' flag is on (the default) and that the "
                                + "Hibernate connection release mode is set to 'on_close' (SpringTransactionFactory's default).");
            }
            if (logger.isDebugEnabled()) {
                logger.debug("Not preparing JDBC Connection of Hibernate Session [" + session + "]");
            }
        }

        if (definition.isReadOnly() && txObject.isNewSession()) {
            // Just set to MANUAL in case of a new Session for this transaction.
            session.setFlushMode(FlushMode.MANUAL);
        }

        if (!definition.isReadOnly() && !txObject.isNewSession()) {
            // We need AUTO or COMMIT for a non-read-only transaction.
            FlushMode flushMode = session.getFlushMode();
            if (FlushMode.isManualFlushMode(session.getFlushMode())) {
                session.setFlushMode(FlushMode.AUTO);
                txObject.getSessionHolder().setPreviousFlushMode(flushMode);
            }
        }

        Transaction hibTx;

        // Register transaction timeout.
        int timeout = determineTimeout(definition);
        if (timeout != TransactionDefinition.TIMEOUT_DEFAULT) {
            // Use Hibernate's own transaction timeout mechanism on Hibernate 3.1+
            // Applies to all statements, also to inserts, updates and deletes!
            hibTx = session.getTransaction();
            hibTx.setTimeout(timeout);
            hibTx.begin();
        } else {
            // Open a plain Hibernate transaction without specified timeout.
            hibTx = session.beginTransaction();
        }

        // Add the Hibernate transaction to the session holder.
        txObject.getSessionHolder().setTransaction(hibTx);

        // Register the Hibernate Session's JDBC Connection for the DataSource, if set.
        if (getDataSource() != null) {
            Connection con = ((SessionImplementor) session).connection();
            ConnectionHolder conHolder = new ConnectionHolder(con);
            if (timeout != TransactionDefinition.TIMEOUT_DEFAULT) {
                conHolder.setTimeoutInSeconds(timeout);
            }
            if (logger.isDebugEnabled()) {
                logger.debug("Exposing Hibernate transaction as JDBC transaction [" + con + "]");
            }
            TransactionSynchronizationManager.bindResource(getDataSource(), conHolder);
            txObject.setConnectionHolder(conHolder);
        }

        // Bind the session holder to the thread.
        if (txObject.isNewSessionHolder()) {
            TransactionSynchronizationManager.bindResource(getSessionFactory(), txObject.getSessionHolder());
        }
        txObject.getSessionHolder().setSynchronizedWithTransaction(true);
    }

    catch (Throwable ex) {
        if (txObject.isNewSession()) {
            try {
                if (session.getTransaction().isActive()) {
                    session.getTransaction().rollback();
                }
            } catch (Throwable ex2) {
                logger.debug("Could not rollback Session after failed transaction begin", ex);
            } finally {
                SessionFactoryUtils.closeSession(session);
            }
        }
        throw new CannotCreateTransactionException("Could not open Hibernate Session for transaction", ex);
    }
}

From source file:org.springframework.orm.hibernate43.SpringSessionContext.java

License:Apache License

/**
 * Retrieve the Spring-managed Session for the current thread, if any.
 *//*  w w  w  . j a va  2 s  . c om*/
public Session currentSession() throws HibernateException {
    Object value = TransactionSynchronizationManager.getResource(this.sessionFactory);
    if (value instanceof Session) {
        return (Session) value;
    } else if (value instanceof SessionHolder) {
        SessionHolder sessionHolder = (SessionHolder) value;
        Session session = sessionHolder.getSession();
        if (TransactionSynchronizationManager.isSynchronizationActive()
                && !sessionHolder.isSynchronizedWithTransaction()) {
            TransactionSynchronizationManager.registerSynchronization(
                    new SpringSessionSynchronization(sessionHolder, this.sessionFactory));
            sessionHolder.setSynchronizedWithTransaction(true);
            // Switch to FlushMode.AUTO, as we have to assume a thread-bound Session
            // with FlushMode.MANUAL, which needs to allow flushing within the transaction.
            FlushMode flushMode = session.getFlushMode();
            if (FlushMode.isManualFlushMode(flushMode)
                    && !TransactionSynchronizationManager.isCurrentTransactionReadOnly()) {
                session.setFlushMode(FlushMode.AUTO);
                sessionHolder.setPreviousFlushMode(flushMode);
            }
        }
        return session;
    } else if (this.jtaSessionContext != null) {
        Session session = this.jtaSessionContext.currentSession();
        if (TransactionSynchronizationManager.isSynchronizationActive()) {
            TransactionSynchronizationManager.registerSynchronization(new SpringFlushSynchronization(session));
        }
        return session;
    } else {
        throw new HibernateException("No Session found for current thread");
    }
}

From source file:org.springframework.orm.hibernate5.HibernateTransactionManager.java

License:Apache License

@Override
protected void doBegin(Object transaction, TransactionDefinition definition) {
    HibernateTransactionObject txObject = (HibernateTransactionObject) transaction;

    if (txObject.hasConnectionHolder() && !txObject.getConnectionHolder().isSynchronizedWithTransaction()) {
        throw new IllegalTransactionStateException(
                "Pre-bound JDBC Connection found! HibernateTransactionManager does not support "
                        + "running within DataSourceTransactionManager if told to manage the DataSource itself. "
                        + "It is recommended to use a single HibernateTransactionManager for all transactions "
                        + "on a single DataSource, no matter whether Hibernate or JDBC access.");
    }/*from w w  w  .j  a v  a 2s .  c o m*/

    Session session = null;

    try {
        if (txObject.getSessionHolder() == null
                || txObject.getSessionHolder().isSynchronizedWithTransaction()) {
            Interceptor entityInterceptor = getEntityInterceptor();
            Session newSession = (entityInterceptor != null
                    ? getSessionFactory().withOptions().interceptor(entityInterceptor).openSession()
                    : getSessionFactory().openSession());
            if (logger.isDebugEnabled()) {
                logger.debug("Opened new Session [" + newSession + "] for Hibernate transaction");
            }
            txObject.setSession(newSession);
        }

        session = txObject.getSessionHolder().getSession();

        if (this.prepareConnection && isSameConnectionForEntireSession(session)) {
            // We're allowed to change the transaction settings of the JDBC Connection.
            if (logger.isDebugEnabled()) {
                logger.debug("Preparing JDBC Connection of Hibernate Session [" + session + "]");
            }
            Connection con = ((SessionImplementor) session).connection();
            Integer previousIsolationLevel = DataSourceUtils.prepareConnectionForTransaction(con, definition);
            txObject.setPreviousIsolationLevel(previousIsolationLevel);
            if (this.allowResultAccessAfterCompletion && !txObject.isNewSession()) {
                int currentHoldability = con.getHoldability();
                if (currentHoldability != ResultSet.HOLD_CURSORS_OVER_COMMIT) {
                    txObject.setPreviousHoldability(currentHoldability);
                    con.setHoldability(ResultSet.HOLD_CURSORS_OVER_COMMIT);
                }
            }
        } else {
            // Not allowed to change the transaction settings of the JDBC Connection.
            if (definition.getIsolationLevel() != TransactionDefinition.ISOLATION_DEFAULT) {
                // We should set a specific isolation level but are not allowed to...
                throw new InvalidIsolationLevelException(
                        "HibernateTransactionManager is not allowed to support custom isolation levels: "
                                + "make sure that its 'prepareConnection' flag is on (the default) and that the "
                                + "Hibernate connection release mode is set to 'on_close' (the default for JDBC).");
            }
            if (logger.isDebugEnabled()) {
                logger.debug("Not preparing JDBC Connection of Hibernate Session [" + session + "]");
            }
        }

        if (definition.isReadOnly() && txObject.isNewSession()) {
            // Just set to MANUAL in case of a new Session for this transaction.
            session.setFlushMode(FlushMode.MANUAL);
        }

        if (!definition.isReadOnly() && !txObject.isNewSession()) {
            // We need AUTO or COMMIT for a non-read-only transaction.
            FlushMode flushMode = session.getFlushMode();
            if (session.getFlushMode().equals(FlushMode.MANUAL)) {
                session.setFlushMode(FlushMode.AUTO);
                txObject.getSessionHolder().setPreviousFlushMode(flushMode);
            }
        }

        Transaction hibTx;

        // Register transaction timeout.
        int timeout = determineTimeout(definition);
        if (timeout != TransactionDefinition.TIMEOUT_DEFAULT) {
            // Use Hibernate's own transaction timeout mechanism on Hibernate 3.1+
            // Applies to all statements, also to inserts, updates and deletes!
            hibTx = session.getTransaction();
            hibTx.setTimeout(timeout);
            hibTx.begin();
        } else {
            // Open a plain Hibernate transaction without specified timeout.
            hibTx = session.beginTransaction();
        }

        // Add the Hibernate transaction to the session holder.
        txObject.getSessionHolder().setTransaction(hibTx);

        // Register the Hibernate Session's JDBC Connection for the DataSource, if set.
        if (getDataSource() != null) {
            Connection con = ((SessionImplementor) session).connection();
            ConnectionHolder conHolder = new ConnectionHolder(con);
            if (timeout != TransactionDefinition.TIMEOUT_DEFAULT) {
                conHolder.setTimeoutInSeconds(timeout);
            }
            if (logger.isDebugEnabled()) {
                logger.debug("Exposing Hibernate transaction as JDBC transaction [" + con + "]");
            }
            TransactionSynchronizationManager.bindResource(getDataSource(), conHolder);
            txObject.setConnectionHolder(conHolder);
        }

        // Bind the session holder to the thread.
        if (txObject.isNewSessionHolder()) {
            TransactionSynchronizationManager.bindResource(getSessionFactory(), txObject.getSessionHolder());
        }
        txObject.getSessionHolder().setSynchronizedWithTransaction(true);
    }

    catch (Throwable ex) {
        if (txObject.isNewSession()) {
            try {
                if (session.getTransaction().getStatus() == TransactionStatus.ACTIVE) {
                    session.getTransaction().rollback();
                }
            } catch (Throwable ex2) {
                logger.debug("Could not rollback Session after failed transaction begin", ex);
            } finally {
                SessionFactoryUtils.closeSession(session);
                txObject.setSessionHolder(null);
            }
        }
        throw new CannotCreateTransactionException("Could not open Hibernate Session for transaction", ex);
    }
}

From source file:org.springframework.orm.jpa.hibernate.HibernateNativeEntityManagerFactoryIntegrationTests.java

License:Apache License

@Test // SPR-16956
public void testReadOnly() {
    assertSame(FlushMode.AUTO, sessionFactory.getCurrentSession().getHibernateFlushMode());
    assertFalse(sessionFactory.getCurrentSession().isDefaultReadOnly());
    endTransaction();//w  w w.  j  ava2s.  co  m

    this.transactionDefinition.setReadOnly(true);
    startNewTransaction();
    assertSame(FlushMode.MANUAL, sessionFactory.getCurrentSession().getHibernateFlushMode());
    assertTrue(sessionFactory.getCurrentSession().isDefaultReadOnly());
}