public JDBCTransaction(JDBCContext jdbcContext,
    TransactionFactory.Context transactionContext) 
{
	     
		this.jdbcContext = jdbcContext;
		this.transactionContext = transactionContext;
}

 public  void begin() throws HibernateException 
{
		if (begun) {
			return;
		}
		if (commitFailed) {
			throw new TransactionException("cannot re-start transaction after failed commit");
		}
		log.debug("begin");
		try {
			toggleAutoCommit = jdbcContext.connection().getAutoCommit();
			if ( log.isDebugEnabled() ) {
				log.debug("current autocommit status: " + toggleAutoCommit);
			}
			if (toggleAutoCommit) {
				log.debug("disabling autocommit");
				jdbcContext.connection().setAutoCommit(false);
			}
		}
		catch (SQLException e) {
			log.error("JDBC begin failed", e);
			throw new TransactionException("JDBC begin failed: ", e);
		}
		callback = jdbcContext.registerCallbackIfNecessary();
		begun = true;
		committed = false;
		rolledBack = false;
		if ( timeout >0 ) {
			jdbcContext.getConnectionManager()
					.getBatcher()
					.setTransactionTimeout(timeout);
		}
		jdbcContext.afterTransactionBegin(this);
}

{@inheritDoc}

 public  void commit() throws HibernateException 
{
		if (!begun) {
			throw new TransactionException("Transaction not successfully started");
		}
		log.debug("commit");
		if ( !transactionContext.isFlushModeNever() && callback ) {
			transactionContext.managedFlush(); //if an exception occurs during flush, user must call rollback()
		}
		notifyLocalSynchsBeforeTransactionCompletion();
		if ( callback ) {
			jdbcContext.beforeTransactionCompletion( this );
		}
		try {
			commitAndResetAutoCommit();
			log.debug("committed JDBC Connection");
			committed = true;
			if ( callback ) {
				jdbcContext.afterTransactionCompletion( true, this );
			}
			notifyLocalSynchsAfterTransactionCompletion( Status.STATUS_COMMITTED );
		}
		catch (SQLException e) {
			log.error("JDBC commit failed", e);
			commitFailed = true;
			if ( callback ) {
				jdbcContext.afterTransactionCompletion( false, this );
			}
			notifyLocalSynchsAfterTransactionCompletion( Status.STATUS_UNKNOWN );
			throw new TransactionException("JDBC commit failed", e);
		}
		finally {
			closeIfRequired();
		}
}

{@inheritDoc}

 public boolean isActive() 
{
		return begun && ! ( rolledBack || committed | commitFailed );
}

{@inheritDoc}

 public  void registerSynchronization(Synchronization sync) throws HibernateException 
{
		if (sync==null) throw new NullPointerException("null Synchronization");
		if (synchronizations==null) {
			synchronizations = new ArrayList();
		}
		synchronizations.add(sync);
}

{@inheritDoc}

 public  void rollback() throws HibernateException 
{
		if (!begun && !commitFailed) {
			throw new TransactionException("Transaction not successfully started");
		}
		log.debug("rollback");
		if (!commitFailed) {
			/*notifyLocalSynchsBeforeTransactionCompletion();
			if ( callback ) {
				jdbcContext.notifyLocalSynchsBeforeTransactionCompletion( this );
			}*/
			try {
				rollbackAndResetAutoCommit();
				log.debug("rolled back JDBC Connection");
				rolledBack = true;
				notifyLocalSynchsAfterTransactionCompletion(Status.STATUS_ROLLEDBACK);
			}
			catch (SQLException e) {
				log.error("JDBC rollback failed", e);
				notifyLocalSynchsAfterTransactionCompletion(Status.STATUS_UNKNOWN);
				throw new TransactionException("JDBC rollback failed", e);
			}
			finally {
				if ( callback ) {
					jdbcContext.afterTransactionCompletion( false, this );
				}
				closeIfRequired();
			}
		}
}

{@inheritDoc}

 public  void setTimeout(int seconds) 
{
		timeout = seconds;
}

{@inheritDoc}

 public boolean wasCommitted() 
{
		return committed;
}

{@inheritDoc}

 public boolean wasRolledBack() 
{
		return rolledBack;
}

{@inheritDoc}