[rules-users] Why double rule activation?
I've encountered rule engine behavior I'm knocking my head against the wall trying
to figure out. I'm a Drools newbie, so please forgive if this I am doing something
bone-headed wrong.
Basically I'm inserting an object into my working memory. The object itself has a
default setting of 0.0 for a brightness value, and this setting matches the LHS condition
for my first rule. The problem is the rule activates twice for a single object insertion
as described in the audit log. It consequently executes twice when I fire all rules. Then
whenever I change the value in question, any single update to the same object also causes
double rule activation and execution.
The rules I've written are not complex. Here's my drl file:
package dimmerie;
#list any import classes here.
import knowledgebase.*;
import NipcLogger;
#declare any global variables here
global NipcLogger IELogger;
rule "Light is off"
when
$brightness : MyVariable(uniqueName == "ds1@brightness",
currentValue == 0.0)
then
IELogger.info("DimmerSwitch1 has no brightness value");
end
rule "Light Below 50%"
when
$brightness : MyVariable(uniqueName == "ds1@brightness",
currentValue < 0.50, currentValue > 0.0)
then
IELogger.info("DimmerSwitch1 is below 50% brightness");
end
rule "Light 50% or Above"
when
$brightness : MyVariable(uniqueName == "ds1@brightness",
currentValue >= 0.5)
then
IELogger.info("DimmerSwitch1 is at or above 50% brightness");
end
I'm hoping I've described enough without having to post additional code. Can
anyone suggest why this is happening?
Thanks,
Allen