System and method for messaging
View Patent ↗A system and method for messaging in which, when a connection to a queue manager ( 220 ) is established, the queue manager allocates a Connection Identifier from the same name space ( 300 ) as Message Identifiers and returns this information ( 400 ) to the user. The user can then use this Connection Identifier as a Correlation Identifier, safe in the knowledge that it will not clash with any system generated Message Identifier or Correlation Identifier. A secondary benefit to this allocation scheme is that if a shared reply queue suffers from a build-up of messages then the Correlation Identifier in those messages can be used to identify the application expected to receive those messages.
1. A method of identifier allocation in a messaging system, the method comprising:
receiving a message queue connection request in a message queuing messaging system executing in memory by a processor of a computer;
responsive to the request, allocating in the message queuing messaging system a message identifier from a predetermined name space, and
additionally allocating in the message queuing messaging system a connection identifier from said predetermined name space.
2. The method of claim 1 wherein the messaging system comprises a message queue messaging system.
3. The method of claim 2 wherein the messaging system comprises a queue manager for allocating said message identifier and for allocating said connection identifier.
4. The method of claim 1 wherein the allocated connection identifier is conveyed in a data structure including a predetermined affix.
5. The method of claim 4 wherein said predetermined affix comprises a character prefix “AMQC”.
6. The method of claim 1 further comprising allocating a correlation identifier from said predetermined name space.
7. A messaging system including identifier allocation, the system comprising:
a computer comprising a processor and memory;
a messaging system executing in the memory by the processor of the computer;
means for receiving a message queue connection request in the messaging system;
means for responsive to the request, allocating in the messaging system a message identifier from a predetermined name space, and
means for additionally allocating in the messaging system a connection identifier from said predetermined name space.
8. The system of claim 7 wherein the messaging system comprises a message queue messaging system.
9. The system of claim 8 wherein the means for allocating is comprised in a queue manager.
10. The system of claim 7 wherein the allocated connection identifier is arranged to be conveyed in a data structure including a predetermined affix.
11. The system of claim 10 wherein said predetermined affix comprises a character prefix “AMQC”.
12. The system of claim 7 further comprising means for allocating a correlation identifier from said predetermined name space.
13. A computer readable storage memory embodying computer software instructions for controlling a computer to perform a method of identifier allocation in a messaging system, comprising:
instructions for receiving a message queue connection request in a message queuing messaging system executing in memory by a processor of a computer;
instructions for responsive to the request allocating in the message queuing messaging system a message identifier from a predetermined name space, and
instructions for additionally allocating in the message queuing messaging system a connection identifier from said predetermined name space.
14. The storage medium of claim 13 further comprising instructions for conveying the allocated connection identifier in a data structure including a predetermined.
15. The storage medium of claim 14 wherein said predetermined affix comprises a character prefix “AMQC”.
16. The storage medium of claim 13 further comprising instructions for allocating a correlation identifier from said predetermined name space.