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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Agreed,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">But if you really do want to you can setup an agenda filter so that only the activation for the rule you care about is fired – but I don’t think there are many
valid cases where this is needed/desirable/appropriate.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thomas<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> rules-users-bounces@lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org]
<b>On Behalf Of </b>Michael Anstis<br>
<b>Sent:</b> 31 March 2011 10:08<br>
<b>To:</b> Rules Users List<br>
<b>Subject:</b> Re: [rules-users] execute particular rules programmatically and dynamically<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">Why would you want to execute a single rule?<br>
<br>
The logic you'd write to determine which rule to fire should itself be part of the rules: So, for example, if you want to validate facts of type "Smurf" then write a rule that matches on "Smurf". When you insert a "Smurf" only the rules that match on this will
become candidates for execution when you call fireAllRules. Perhaps use of a stateless session would simplify things so you need not worry about other facts in WM "polluting" the results you expect to see?
<br>
<br>
More and more questions are posted here asking how to make individual rules execute; IMO the solution is to change your thinking about how Rules Engines work.<br>
<br>
If you give your use-case we might be able to advise a better approach.<br>
<br>
With kind regards,<br>
<br>
Mike<o:p></o:p></p>
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<p class="MsoNormal">2011/3/31 Wolfgang Laun <<a href="mailto:wolfgang.laun@gmail.com">wolfgang.laun@gmail.com</a>><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><o:p> </o:p></p>
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<p class="MsoNormal">On 31 March 2011 07:58, Benson Fung <<a href="mailto:benson.redhat@gmail.com" target="_blank">benson.redhat@gmail.com</a>> wrote:<o:p></o:p></p>
<p class="MsoNormal">Hi,<br>
<br>
If there are 10 rules in the drools rulebase, and right now I would<br>
like to execute one of the particular rule. Is there any approach/way<br>
to execute particular rule programmatically?<o:p></o:p></p>
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<p class="MsoNormal"><br>
No. The right hand side of a rule (code between "then" and "end") is executed whenever there is a set of fact objects in Working Memory satisfying the condition. If you insert such a set of facts and call fireAllRules(), then it will happen.<br>
<br>
<o:p></o:p></p>
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<p class="MsoNormal"> I don't think<br>
agenda-group or activation-group can do that, right? Or is it<br>
possible to create an agenda programmatically ?<o:p></o:p></p>
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<p class="MsoNormal"><br>
No to both.<br>
<span style="color:#888888">-W<br>
</span><o:p></o:p></p>
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<p class="MsoNormal"><br>
Thanks<br>
_______________________________________________<br>
rules-users mailing list<br>
<a href="mailto:rules-users@lists.jboss.org" target="_blank">rules-users@lists.jboss.org</a><br>
<a href="https://lists.jboss.org/mailman/listinfo/rules-users" target="_blank">https://lists.jboss.org/mailman/listinfo/rules-users</a><o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
<br>
_______________________________________________<br>
rules-users mailing list<br>
<a href="mailto:rules-users@lists.jboss.org">rules-users@lists.jboss.org</a><br>
<a href="https://lists.jboss.org/mailman/listinfo/rules-users" target="_blank">https://lists.jboss.org/mailman/listinfo/rules-users</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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