How the sample uses syncpoints

 

The programs in the Credit Check sample application declare syncpoints to ensure that:

• Only one reply message is sent in response to each expected message

• Multiple copies of unexpected messages are never put on the sample’s dead-letter queue

• The CAM can recover the state of all partially-completed inquiries by getting persistent messages from its waiting queue

To achieve this, a single unit of work is used to cover the getting of a message, the processing of that message, and any subsequent put operations.

 

Parent topic:

Design considerations

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