To create a transactional manager

1. Initialize QAnywhere.

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

   #include <qa.hpp> QAManagerFactory * factory; factory = QAnywhereFactory_init(); if( factory == NULL ) { // Fatal error. }

2. Create a transactional manager.

   QATransactionalManager * mgr; mgr = factory->createQATransactionalManager( NULL ); if( mgr == NULL ) { // Fatal error. }

   As with non-transactional managers, you can specify a properties file to customize QAnywhere behavior. In this example, no properties file is used.

3. Initialize the manager.

   if( !mgr->open() ) { // Display message using mgr->getLastErrorMsg(). }

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(); } } mgr->deleteMessage( msg_2 ); } mgr->deleteMessage( msg_1 ); }

   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

• C++: QATransactionalManager class
• Java: QATransactionalManager interface