Re: [rules-users] prevent infinite loops

We have used a "BreadCrumb" fact to avoid this in the past. We had a situation where there wasn't a direct loop (rule A triggering rule A) but rather a trifecta of facts (Rule A triggers Rule B which trigger Rule C which triggered Rule A). To solve for this we created a simple "RuleBreadCrumb" fact that takes a "rule name" as a parameter. We check for the non-existence of this fact in our WHEN clause (on rules at risk of a loop) and insert the RuleBreadCrumb fact in the THEN statements. ________________________________ From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Mauricio Salatino Sent: Friday, January 29, 2010 1:21 PM To: Rules Users List Subject: Re: [rules-users] prevent infinite loops lock-on-active it's ok for that kind of situations On Fri, Jan 29, 2010 at 3:00 PM, Garner, Shawn <Garner.Shawn(a)principal.com&gt; wrote: Is there a good way to globally prevent infinite loops. I had rule A and rule B and they both have FactA on the condition. They also both modify FactA. I tried no-loop and it prevents a loop of repeating RuleA over and over. However it then goes from Rule A back to Rule B back to Rule A. I fixed it by lock-on-active instead of no-loop. However I was wondering if there was either a timeout feature or a maximum number of times you could set a rule to be executed to error out on infinite loops. Any guidance would be appreciated. Thanks, SDG -----Message Disclaimer----- This e-mail message is intended only for the use of the individual or entity to which it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended recipient, any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by reply email to Connect(a)principal.com and delete or destroy all copies of the original message and attachments thereto. Email sent to or from the Principal Financial Group or any of its member companies may be retained as required by law or regulation. Nothing in this message is intended to constitute an Electronic signature for purposes of the Uniform Electronic Transactions Act (UETA) or the Electronic Signatures in Global and National Commerce Act ("E-Sign") unless a specific statement to the contrary is included in this message. While this communication may be used to promote or market a transaction or an idea that is discussed in the publication, it is intended to provide general information about the subject matter covered and is provided with the understanding that The Principal is not rendering legal, accounting, or tax advice. It is not a marketed opinion and may not be used to avoid penalties under the Internal Revenue Code. You should consult with appropriate counsel or other advisors on all matters pertaining to legal, tax, or accounting obligations and requirements. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- - http://salaboy.wordpress.com - http://www.jbug.com.ar - Salatino "Salaboy" Mauricio -