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Use

The sender of a message uses the attribute Quality of Service (QoS) to determine how a message is delivered. The following types of quality of service are supported:

  • BE (Best Effort)

    The message is sent synchronously. The sender waits for a response before it continues processing.

  • EO (Exactly Once)

    The message is sent asynchronously. The sender does not wait for a response. The Advanced Adapter Engine guarantees that the message is sent and processed exactly once.

  • EOIO (Exactly Once In Order)

    Messages are delivered with the same queue names (supplied by the application) in the same sequence that they were sent from the sender system. Message processing is asynchronous in this case.

In the case of quality of service BE an error occurs if more than one receiver is determined for a message. In the case of delivery types EO and EOIO, the message is copied correspondingly and sent to the individual receivers.