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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I’d definitely suggest this approach. Compiling DRL files into a knowledge base is very expensive and something you want to avoid doing as much as possible
and probably wouldn’t come anywhere close to meeting your performance requirements!
<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>
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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> 17 March 2011 07:52<br>
<b>To:</b> Rules Users List<br>
<b>Subject:</b> Re: [rules-users] drools design question<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">You could hold them all in a single KnowledgeBase with "State", "FactorY" and "FactorX" as Facts themselves checked in the Rules' RHS.
<br>
<br>
You could still have multiple DRL files (to aid authoring and maintenance) but load them all at once. The RETE network shares nodes for patterns shared across multiple rules. If your DRLs therefore share RHS patterns (e.g. simplistically State XX premium for
criteria A = 100, State YY premium for criteria A = 110) the "criteria" patterns will be shared.
<br>
<br>
With kind regards,<br>
<br>
Mike<o:p></o:p></p>
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<p class="MsoNormal">2011/3/17 Esteban Aliverti <<a href="mailto:esteban.aliverti@gmail.com">esteban.aliverti@gmail.com</a>><o:p></o:p></p>
<p>You could also use drools (maybe a decision table) to select the different drl files.<o:p></o:p></p>
<p>Best regards,<o:p></o:p></p>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal">El mar 16, 2011 8:24 p.m., "marunam" <<a href="mailto:sutavis@gmail.com" target="_blank">sutavis@gmail.com</a>> escribió:<o:p></o:p></p>
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<br>
Hi,<br>
<br>
We are developing an insurance application and we have decided to use drool<br>
rules for our business rules<br>
Now, we could have global business rules(applies to all states), specific to<br>
state, specific to factor X, specific to factor Y etc. This way we are<br>
expecting many drl files.<br>
<br>
Now, when the application runs, we would know the values for state, factor<br>
X, factor Y etc. and using these values we would determine(using database)<br>
which drl files to load dynamically and just run the rules in those drls.<br>
<br>
Is this approach recommended? Do you have any suggestions?<br>
<br>
Thanks<br>
<span style="color:#888888"><br>
--<br>
View this message in context: <a href="http://drools-java-rules-engine.46999.n3.nabble.com/drools-design-question-tp2691182p2691182.html" target="_blank">
http://drools-java-rules-engine.46999.n3.nabble.com/drools-design-question-tp2691182p2691182.html</a><br>
Sent from the Drools - User mailing list archive at Nabble.com.<br>
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