[rules-users] Avoiding loops

Hi Droolers, I'm trying to avoid loops and looking at different possibilities (no-loop, activation-group, lock-on-active, etc.). For example, the initial facts trigger *rule 1*, which inserts new facts that will trigger *rule 2*, which will then insert facts that would re-trigger *rule 1*. no-loop -> just prevents the re-activation of the same rule lock-on-active -> I can't know which rules should have lock-on-active set to true, since I don't know what will be the initial facts. All rules in my rule set should execute only once. So, a rule inserts new facts only rules that haven't executed so far, should be activated. Is there a way to do that, let's say 'out-of-the-box', with DRL? Thank you, Leo.