[rules-users] Infinite loop in rule condition matching

[Sartaj Shaik]

Thanks for your quick response Michael, I have identified the issue.. 

while writing rules in Decision table (Web-guided editor) -> column 
configuration there is a option Update engine with changes (Checking this 
will tell the engine that the value has changed. This will cause the rules 
that depend on it to be re-evaluated. Use with care!). This was checked 
unintentionally, hence every time it is going to the same rule.



From:
Michael Anstis <michael.anstis at gmail.com>
To:
Rules Users List <rules-users at lists.jboss.org>
Date:
03/10/2011 10:34 PM
Subject:
Re: [rules-users] Infinite loop in rule condition matching
Sent by:
rules-users-bounces at lists.jboss.org



Without seeing the rules it would be very hard to determine what causes 
your issue.

"Infinite loops" normally imply there is some degree of circularity 
between rules.

Can you please provide a self contained test case or your rules (DRL form, 
preferential).

Thanks

2011/3/10 Sartaj Shaik <sartaj.shaik at tcs.com>

Hi, 

I have written some rules in Decision table (Web-guided editor), and I 
have implemented the AgendaFilter to fire rules that ends with the rule 
name specified (EndAgendaFilter) 
here is the accept method I have written. 

When I fire the rules ends with some "XXXXX", this accept method goes into 
infinite loop and my Sysout prints "Rule 1 XXXXX" infinite times. 

(Note: all the condition variables that i have passed to guvnor matches 
with the first row of that rule, hence getting Rule 1 XXXXX) 

                public boolean accept(final Activation activation) { 
                        System.out
.println(activation.getRule().getName()); 
                        if (activation.getRule().getName().endsWith(this.
suffix)) { 
                                return this.accept; 
                        } else { 
                                return !this.accept; 
                        } 
                } 


All my other rules are working fine, even I have created the same rule 
again (same conditions, actions, data etc) it is working properly. 

Don't know what is the root cause, any ideas? 

I have 3 similar rules which are failing, and those rules contains lot of 
rows, so can't create the new rules for those again to make them work :( 

Please help!!!
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