[rules-users] Infinite loop when nesting rules

[Mauricio Salatino]

you can also use lock-on-active that will work like no-loop but with
multiple rules.

On Mon, Jan 11, 2010 at 11:34 AM, Swindells, Thomas <TSwindells at nds.com>wrote:

> In this case you can simply change your when clause so that it tests
> whether rules contains Rule1.
>
> Eg
>  rule "Rule1"
>  salience 100
>  no-loop true
>   when
>      $c:Chesse(type="Chedar" && not (rules contains "Rule1"))
>    then
>     modify ($c){addRule("Rule1")}
>  end
>
> Hope that helps,
> Thomas
>
> > -----Original Message-----
> > From: rules-users-bounces at lists.jboss.org [mailto:rules-users-
> > bounces at lists.jboss.org] On Behalf Of orchid
> > Sent: 11 January 2010 13:21
> > To: rules-users at lists.jboss.org
> > Subject: [rules-users] Infinite loop when nesting rules
> >
> >
> > Hi,
> >
> > I have another question regarding rules nesting. I have the following
> Rule1
> > and Rule2 which check some property of Cheese type (I dont want to merge
> > them into one rule). The "then" part of these rules updates the list
> field
> > of class Cheese which holds the rules that were fired for a specific
> > instance. In Rule3 I want to check if Rule1 and Rule2 were fired:
> >
> > rule "Rule1"
> > salience 100
> > no-loop true
> >   when
> >     $c:Chesse(type="Chedar")
> >   then
> >     modify ($c){addRule("Rule1")}
> > end
> >
> > rule "Rule2"
> > salience 90
> > no-loop true
> >   when
> >     $c:Chesse(price < 100)
> >   then
> >     modify ($c){addRule("Rule2")}
> > end
> >
> > rule "Rule3"
> >   when
> >     $c:Cheese(rules contains "Rule1" && rules contains "Rule2")
> >   then
> >     System.out.println("Rule3 was fired");
> > end
> >
> > Rule1 and Rule2 cause infinite loop because of the 'modify' method. How
> can
> > I solve that issue?
> >
> > Thank you very much in advance !!!
> > --
> > View this message in context:
> http://n3.nabble.com/Infinite-loop-when-nesting-
> > rules-tp116764p116764.html
> > Sent from the Drools - User mailing list archive at Nabble.com.
> > _______________________________________________
> > rules-users mailing list
> > rules-users at lists.jboss.org
> > https://lists.jboss.org/mailman/listinfo/rules-users
>
>
>
> **************************************************************************************
> This message is confidential and intended only for the addressee. If you
> have received this message in error, please immediately notify the
> postmaster at nds.com and delete it from your system as well as any copies.
> The content of e-mails as well as traffic data may be monitored by NDS for
> employment and security purposes. To protect the environment please do not
> print this e-mail unless necessary.
>
> NDS Limited. Registered Office: One London Road, Staines, Middlesex, TW18
> 4EX, United Kingdom. A company registered in England and Wales. Registered
> no. 3080780. VAT no. GB 603 8808 40-00
>
> **************************************************************************************
>
> This message is confidential and intended only for the addressee. If you
> have received this message in error, please immediately notify the
> postmaster at nds.com and delete it from your system as well as any copies.
> The content of e-mails as well as traffic data may be monitored by NDS for
> employment and security purposes.
> To protect the environment please do not print this e-mail unless
> necessary.
>
> An NDS Group Limited company. www.nds.com
>
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>



-- 
- http://salaboy.wordpress.com
- http://www.jbug.com.ar
- Salatino "Salaboy" Mauricio -
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.jboss.org/pipermail/rules-users/attachments/20100111/a2a1f838/attachment.html