Re: [rules-users] modify, retract, setFocus and Salience

I will take a stab at answering this: -Modify and Retract will cause the tree to be re-evaluated for the current facts in memory. This may cause new activations or cancellations to occur. Be forewarned that a rule that modifies a fact may cause a continuous loop if the conditions for that rule are always satisfied. If you wish to not have this behavior look at no-loop -Salience: Can be useful but I have found that using a controller fact to order execution is more efficient. The problem with Salience is that it can cause your tree to become to linear thus the behavior of the rules engine is more like a bunch of if statements rather then being able to match patterns and fire. I do use salience for some rules but try not to over do it -setFocus: I don't have anything wrong with this. This allows you to segments your rules into agenda groups. I am sure someone else on here can add more. -Mike aps4u wrote -- View this message in context: http://drools.46999.n3.nabble.com/modify-retract-setFocus-and-Salience-tp... Sent from the Drools: User forum mailing list archive at Nabble.com.