It requires a little work (and the timestamp should be an event attribute) to write rules to select facts being in a dynamic window, but it can be done.
-W On 11/06/2014, Matteo Mortari <matteo.mort...@gmail.com> wrote: > Hi, > I'm quite intrigued by this question also myself, I would like to know more > about what you mean by "configurable" ? > > For instance you can have the window 'declared' > > declare window SensorReading30s > SensorReading() over window:time(30s) from entry-point DEFAULT > end > > and also use this custom window name in the accumulate rule. > > Do you mean by "configurable" , known at runtime and varying? > > A solution I can think of in that case, a specific rule with the > housekeeping style; but I'm quite worried about performance issues may > arise. > > Just my 2c, hope maybe helps? > > > On Tue, Jun 10, 2014 at 4:18 AM, moonbeam <jplabe...@magenta.ca> wrote: > >> How can we make the 'over window:time' parameter being configurable? >> >> Something similar to the following rule (that does not compile at all). >> See >> the $windowTime variable. >> >> >> declare TemperatureThreshold >> windowTime : String = "30s" >> max : long = 70 >> end >> >> declare SensorReading >> @role( event ) >> temperature : String = "40" >> end >> >> rule "Sound the alarm in case temperature rises above threshold" >> when >> TemperatureThreshold( $max : max, $windowTime : windowTime ) >> Number( doubleValue > $max ) from accumulate( >> SensorReading( $temp : temperature ) over window:time( $windowTime ), >> average( $temp ) ) >> then >> // sound the alarm >> end >> >> >> >> >> >> -- >> View this message in context: >> http://drools.46999.n3.nabble.com/How-can-we-make-the-over-window-time-parameter-being-configurable-tp4029932.html >> Sent from the Drools: User forum mailing list archive at Nabble.com. >> >> _______________________________________________ >> rules-users mailing list >> rules-users@lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-users > _______________________________________________ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users