Persistent messaging in a transaction processing environment

• US 20040088712A1
• Filed: 12/20/2002
• Published: 05/06/2004
• Est. Priority Date: 11/05/2002
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Ware, David, Hickson, Andrew Ian, Niblett, Peter David
• Granted Patent: US 7,240,349 B2
• Time in Patent Office: Days
• US Class Current: 719/314
• CPC Class Codes: G06F 9/466 Transaction processing
• CPC Class Codes: G06F 9/546 Message passing systems or structures, e.g. queues

Abstract

Disclosed is a method and computer program product for sending a persistent message in a transaction-enabled messaging and queuing system comprising a message queue manager responsible for transferring messages from a sender program to a receiving program via a message queue. A message is sent from the sender program to the message queue manager, the message being defined so as to permit the message queue manager to select whether to treat the message transactionally or non-transactionally.

Claims

1. A method of sending a persistent message in a transaction-enabled messaging and queuing system comprising a message queue manager responsible for transferring messages from a sender program to a receiving program via a message queue, the method comprising the step of sending a message to a message queue manager, the message being defined by the sender program so as to permit the message queue manager to select whether to treat the message transactionally or non-transactionally.

2. The method of claim 1 wherein the message queue manager selects to handle the message non-transactionally when there is a waiting corresponding receive message on the message queue and accordingly transfers the message direct to the receiving program.

3. The method of claim 1 wherein the message queue manager selects to handle the message transactionally when there is no waiting corresponding receive message on the message queue and accordingly places the message on the message queue and commits the message to non-volatile storage.

4. The method of claim 3 comprising the further step of providing an indication to the sender program that the message is being handled transactionally.

5. A computer program product comprising a computer usable medium having computer readable program code means embodied therein for causing a transfer of persistent messages in transaction-oriented environment, the computer readable program code means in said computer program product comprising computer readable program code for sending a message to a message queue manager, the message being defined so as to permit the message queue manager to select whether to treat the message transactionally or non-transactionally.

6. The product of claim 5 further comprising computer readable program code for selecting to handle the message non-transactionally by transferring the message direct to the receiving program when there is a waiting corresponding receive message on the message queue.

7. The product of claim 5 further comprising computer readable program code for selecting to handle the message transactionally by placing the message on the message queue and committing the message to non-volatile storage when there is no waiting corresponding receive message on the message queue.