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 == "[EMAIL PROTECTED]",
currentValue == 0.0)
then
IELogger.info("DimmerSwitch1 has no brightness value");
end
rule "Light Below 50%"
when
$brightness : MyVariable(uniqueName == "[EMAIL PROTECTED]",
currentValue < 0.50, currentValue > 0.0)
then
IELogger.info("DimmerSwitch1 is below 50% brightness");
end
rule "Light 50% or Above"
when
$brightness : MyVariable(uniqueName == "[EMAIL PROTECTED]",
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
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