Overview of Exactly-Once Processing for JMS Triggers

Building Your Event-Driven Architecture : Using Integration Server to Build a Client for JMS : Exactly-Once Processing for JMS Triggers : Overview of Exactly-Once Processing for JMS Triggers

Within Integration Server, exactly-once processing is a facility that ensures one-time processing of a persistent message by a JMS trigger. The trigger does not process duplicates of the message. Integration Server provides exactly-once processing when all of the following are true:

The message is persistent.

The JMS trigger has an acknowledgement mode set to CLIENT_ACKNOWLEDGE.

Exactly-once properties are configured for the JMS trigger.

Note:

Exactly-once processing typically only provides value for JMS triggers that receive messages from queues or JMS triggers that receive messages from topics using durable subscribers.

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