Hi, This is perhaps not the performance hit you think it is as the rules are evaluated as they are loaded. The Rete algorithm will evaluate that the rule is not null and trigger.
Another consideration is that you may need to use a flatter fact-model if you're drilling down with 'from' operators and needing to trap for nulls. Aside from that, if you use Rule Flow Groups and a Rule Flow as Michael Anstis suggested:You can use a Split Connector to branch around that section of ruleflow, and a Join Connector to continue, connected either to the next ruleflow step, or to a Stop. Regards, -Trav Travis Smith Analyst Programmer Development Centre BNZ DDI: +644 4746356 (Or Ext 76356) Sathya Prakash <[email protected]> Sent by: [email protected] 17/02/2011 11:51 a.m. Please respond to Rules Users List <[email protected]> To Mauricio Salatino <[email protected]>, [email protected] cc Rules Users List <[email protected]> Subject Re: [rules-users] how to stop rule execution I got great Idea by this discussion. If there is no way of stopping rules then I can do this null condition check before executing rules. Adding one action in JBoss ESB will solve problem. Please suggest me. Many Thanks in advance. Regards, Sathya Prakash. On Thu, Feb 17, 2011 at 2:39 AM, Sathya Prakash <[email protected]> wrote: Thanks for your suggestion.. But let us assume i have 100 rules based on single response. When response is null then if i am doing null check in all rules then it degrades the performance. My application hits are million per day. if 1 % percent fails think about the impact. Regards, Sathya Prakash. On Thu, Feb 17, 2011 at 2:26 AM, Mauricio Salatino <[email protected]> wrote: you can do something like: rule "Error Check" salience 100 when error condition check then System.Out.Println("Response has errors"); XXXXXXXXXXXXXXXXXXXXXXXX to exit from rule execution insert(Stop()) end rule "Rule-01" salience 99 when not(Stop()) repsonse.getxx() then end. 2011/2/16 Sathya Prakash <[email protected]> Hi, How to stop rule execution in technical rule, Example rule "Error Check" salience 100 when error condition check then System.Out.Println("Response has errors"); XXXXXXXXXXXXXXXXXXXXXXXX to exit from rule execution end rule "Rule-01" salience 99 when repsonse.getxx() then end. if first rule then part executed means the response is error hence we should not execute second. Is there any way to exit rule execution. Regards, Sathya Prakash. _______________________________________________ rules-users mailing list [email protected] https://lists.jboss.org/mailman/listinfo/rules-users -- - CTO @ http://www.plugtree.com - MyJourney @ http://salaboy.wordpress.com - Co-Founder @ http://www.jbug.com.ar - Salatino "Salaboy" Mauricio - -- Cheers, Sathya Prakash. సత్య ప్రకాష్. -- Cheers, Sathya Prakash. సత్య ప్రకాష్. _______________________________________________ rules-users mailing list [email protected] https://lists.jboss.org/mailman/listinfo/rules-users CAUTION - This message may contain privileged and confidential information intended only for the use of the addressee named above. If you are not the intended recipient of this message you are hereby notified that any use, dissemination, distribution or reproduction of this message is prohibited. This email was sent by the Bank of New Zealand. You can contact us on 0800 ASK BNZ (0800 275 269). Any views expressed in this message are those of the individual sender and may not necessarily reflect the views of Bank of New Zealand.
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