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Automation scheduler and monitor with stopwatch GUI widget.
...The user / programmer of the API Jar designs their own messages, specifying the set of properties and their types which will be sent with each event they want to report. The properties in the custom message are the fields in a log table created specifically for that task. I am including a sample use program which is a sensor-net simulation, specifically of a home monitoring system, which could be used as a control system as well provided the interfaces from Java to the devices are installed.