Can a rule be triggered by activating it?

[jimtng]

open door reminder in jruby:

rule "open door reminder" do
  changed Door_Sensor, to: OPEN # If you just have one sensor
  changed Door_Sensors.members, to: OPEN # If you want to deal with a group of door sensors
  run do |event|
    after(15.minutes, id: [:door_reminder, event.item]) do |timer|
      next unless event.state.open?

      Voice.say "#{event.item} is open"
      timer.reschedule
    end
  end
end

You can use a UI based rule, just set up a trigger when the sensor changed to OPEN and only use the after … end block from above as your script. So this is the body of your rule:

    after(15.minutes, id: [:door_reminder, event.item]) do |timer|
      next unless event.state.open?

      Voice.say "#{event.item} is open"
      timer.reschedule
    end

@tophee

Let’s say the press of a button triggers a rule and the assumption for normal use is that the button is pressed once at a time, i.e. not multiple times in a row. But of course, this assumption won’t prevent people from pressing the button multiple times within a few seconds so that the rule is triggered again before the first instance of the rule has finished processing. And again, and so on.

So, for a robust setup, we want the rule to be triggered only once in that case.

For this situation, you debounce it.

Jruby offers three types of debouncing mechanisms for you to choose