To create a transactional manager

1. Initialize QAnywhere.

   This step is the same as in non-transactional messaging.

   using iAnywhere.QAnywhere.Client;

2. Create a QATransactionalManager object.

   For example, to create a default QATransactionalManager object, invoke CreateQATransactionalManager with null as its parameter:

   QAManager mgr; mgr = QAManagerFactory.Instance.CreateQATransactionalManager( null );

   See QAManagerFactory class.

   You can alternatively create a QATransactionalManager object that is customized using a properties file. The properties file is specified in the CreateQATransactionalManager method:

   mgr = QAManagerFactory.Instance.CreateQATransactionalManager( "qa_mgr.props" );

   where qa_mgr.props is the name of the properties file that resides on the remote device.

3. Initialize the QAManager object.

   mgr.Open();

You are now ready to send messages. The following procedure sends two messages in a single transaction.

To send multiple messages in a single transaction

1. Initialize message objects.

   QATextMessage msg_1; QATextMessage msg_2;

2. Send the messages.

   The following code sends two messages in a single transaction:

   msg_1 = mgr.CreateTextMessage(); if( msg_1 != null ) { msg_2 = mgr.CreateTextMessage(); if( msg_2 != null ) { if( !mgr.PutMessage( "jms_1\\queue_name", msg_1 ) ) { // Display message using mgr.GetLastErrorMsg(). } else { if( !mgr.PutMessage( "jms_1\\queue_name", msg_2 ) ) { // Display message using mgr.GetLastErrorMsg(). } else { mgr.Commit(); } } } }

   The Commit method commits the current transaction and begins a new transaction. This method commits all PutMessage() method and GetMessage() method invocations.

   Note

   The first transaction begins with the call to open method.

See also

• QATransactionalManager interface