[rules-users] How Can a Drools Rule call another Drools Rule?

[Salaboy]

Drools have logicalInsert, what do you mean with: drools doesn't have this? It behaves differently than Jess and clips? 

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On 21/08/2010, at 23:53, Socrates Frangis <soc.frangis at gmail.com> wrote:

> Keep in mind that rules are declarative, it is against the nature of a rule based expert system to force a rule to fire; youre kind of treating the rule like a function.
> 
> My best advice is....
> 
> 1)Create a POJO called "Flag", store a String and Boolean inside of it.
> 
> 2)On the RHS of the first rule, create the POJO and set the string to something like "rule-03-fired" and set the boolean to 'true'
> 
> 3)In the rule you want to fire, add a pattern to check for a Flag Fact Template with String value 'rule-03-fired' and 'true'
> 
> Note, this is normally done in CLIPS/JESS as logical assertions, but Drools does not have this. However, i'm sure it's implemented the same on the back end.
> 
> 2010/8/21 Michael Anstis <michael.anstis at gmail.com>
> Look at the API; the overloaded method you use will only fire 2 rules.
> 
> You probably need fireAllRules();
> 
> 2010/8/20 Sanjib Karmakar <sanjibk at skytechsolutions.co.in>
> 
> Sir 
> 
> Thank you very much for your reply. 
> In fact what I wanted to execute the specific rule out of say 10 rules. 
> 
> I have tried 
> ksession.fireAllRules(2); 
> Then only first 2 rules get executed. 
> 
> Please let me know if there is any way-out to call specific rules out of bunch of rules. 
> It would be extremely helpful if you please share a code snippet regarding this. 
> 
> Regards
> Sanjib Karmakar
> SkyTech Solutions Pvt. Ltd
> 
> Please consider the environment before printing this email. 
> 
> 
> "Wolfgang Laun-2 [via Drools - Java Rules Engine]" <[hidden email]>
> 08/19/2010 07:45 PM
> 
> To
> Sanjib Karmakar <[hidden email]> 
> cc
> Subject
> Re: How Can a Drools Rule call another Drools Rule?
> 
> 
> 
> 
> 
> Rules are never "called". Changes in WM create (and also delete) 
> "activations": tuples consisting of a rule and the fact objects 
> matching the left hand side patterns. From this set of activations, 
> rule right hand sides are executed according to salience (and other 
> criteria). 
> 
> Perhaps if you describe the actual problem...? 
> 
> -W 
> 
> 
> On 19 August 2010 06:58, Sanjib Karmakar <[hidden email]> wrote: 
> 
> > 
> > Hi friends 
> > 
> > I would like to execute a rule say Rule-1 from inside another rule say 
> > Rule-2. 
> > In project I am using xml and not drl, and I am using Drools 5.0 
> > 
> > Please let me know how to call a rule from another rule. 
> > 
> > Thanks 
> > Sanjib 
> > -- 
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