Messages Modes

The message groups in northbound services use Sampling and Sending modes to create message behaviours that users want.

Sampling Mode

The message groups will be run according based on the customSamplingRate setting and the following modes.

• customSamplingRate: After this option is enable, a message can be customized using the following parameters.
  • pollingInterval

    0 means subscribe mode (sampling data published by source)
    A value greater than zero means sampling data latest values by interval

  • onChange
• sampling mode
  • allValues

    Buffer all data published by source

  • latestValues

    Sampling time is automatically set to be the same as the sendOutThreshold.time

  • allChangedValues

    Buffer data that does not match the current values

  • latestChangedValues

    Sampling time is automatically set to be the same as the sendOutThreshold.time.
    Buffer data that does not match the current values

Sending Mode

A message group will send messages based on the following:

• byTime
• bySize
• immediately

Last updated on 2022-07-22 by Cecilia Fernandes