[rules-users] Advice on varying rule behavior based on object tested?

Each item I am testing MAY have overridden the default thresholds or disable the rule entirely. I would prefer to have this data related to the item I am testing rather than have each rule manage customized behavior for thousands of different types of objects. The object could have a map of rule thresholds it overrides, but for simplicity I assume there is a method to return the current threshold for the current object. is there a better way to perform this kind of logic? Example of my current code: declare TestedEntity temp : Double end declare AlertThreshold maxAllowed : Double end rule "Check temperature" when $entity : TestedEntity( ) // would prefer to use drools.getRule().getName() on next line AlertThreshold($entity.temp > maxAllowed) from $entity.getAlertThresholdForRule("Check temperature") then // raise alert end I dislike hard-coding the rule name as it leads to copy paste errors. I can't insert thresholds easily unless I define different ones for each rule and I want to be able to fall back to defaults easily. This is a type of problem I have come up against several times now so I feel like others must have dealt with it before. The idea of writing copies of rules tailored to each Entity appeals less than a generalized way of doing this. By doing this I want to contain complexity. Dozens of slightly different implementations of the same rule would be much harder to test and support. I am dealing with hundreds of thousands of facts today and will need to scale to millions before I can deploy fully. But with that large number I need to have ways to manage exceptions to the general case just to keep complexity manageable. Thanks, Zack -- View this message in context: http://drools.46999.n3.nabble.com/Advice-on-varying-rule-behavior-based-o... Sent from the Drools: User forum mailing list archive at Nabble.com.