By 'configurable', I mean 'user defined' instead of 'programmer
defined'. I
know, I can write (and it will work):
rule "Sound the alarm in case temperature rises above threshold"
when
TemperatureThreshold( $max : max )
Number( doubleValue > $max ) from accumulate(
SensorReading( $temp : temperature ) over window:time( 30s ),
average( $temp ) )
then
// sound the alarm
End
In this manner, the threshold ($max) is ‘user defined’. Just need to inject
a TemperatureThreshold fact with user’s preferred 'max' value.
But the 'window:time' is hardcoded forever.
I would prefer injecting TemperatureThreshold fact containing a second
parameter (windowTime) that could be decide at 'inject time'. That gives a
rule similar to the one I had posted originally.
But, unfortunately this way, the rule does not compile at all. Passing a
variable (like $windowTime) to 'window:time' does not seems to be syntax
acceptable.
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