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</o:shapelayout></xml><![endif]--></head><body lang=DE-AT link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Thank you for the quick answer! This makes absolutely sense and the rules work now as expected.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Unfortunately, I was not able to find this somewhere in the documentation. It would be nice to see it in the documentation of drools fusion. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Best,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Wolfgang<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-GB style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Von:</span></b><span lang=EN-GB style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> rules-users-bounces@lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] <b>Im Auftrag von </b>Wolfgang La</span><span lang=DE style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>un<br><b>Gesendet:</b> Montag, 16. Jänner 2012 15:58<br><b>An:</b> Rules Users List<br><b>Betreff:</b> Re: [rules-users] Problem with Negative Patterns and Temporal Constraints<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'>I don't see that the "not" CE excludes the AnalysisCue bound to $cue from being<br>matched by the pattern inside the "not". I recommend using<br><br><b><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata;color:#960000'> not</span></b><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata'>(AnalysisCue(<b>this != $cue</b>, <span style='color:#960000'>this</span> after[0ms,2500ms] $cue) <span style='color:#960000'>from</span></span><br><br>since "[0ms,..." does not inhibit the same event being matched by both patterns,<br>which precludes the rule from firing.<br><br>-W<br><br><o:p></o:p></p><div><p class=MsoNormal>2012/1/16 Weiss, Wolfgang <<a href="mailto:Wolfgang.Weiss@joanneum.at">Wolfgang.Weiss@joanneum.at</a>><o:p></o:p></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-GB>Hi all!</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-GB> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-GB>We have the problem that the following rule never fires:</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-GB> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-autospace:none'><b><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata;color:#960000'>rule</span></b><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata'> <span style='color:green'>"test-rule"</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-autospace:none'><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata'> <b><span style='color:#960000'>agenda-group</span></b> <span style='color:green'>"evaluation"</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-autospace:none'><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata'> <b><span style='color:#960000'>salience</span></b> 100</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-autospace:none'><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-autospace:none'><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata'> <b><span style='color:#960000'>when</span></b></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-autospace:none'><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata'> $cue : AnalysisCue() <b><span style='color:#960000'>from</span></b> entry-point <span style='color:green'>"LowLevelCueStream"</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-autospace:none'><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata'> <b><span style='color:#960000'>not</span></b>(AnalysisCue(<b><span style='color:#960000'>this</span></b> after[0ms,2500ms] $cue) <b><span style='color:#960000'>from</span></b> entry-point <span style='color:green'>"LowLevelCueStream"</span>)</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-autospace:none'><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata'> <b><span style='color:#960000'>then</span></b></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-autospace:none'><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata'> logger.debug(<span style='color:green'>"... some message .."</span>);</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata;color:#960000'>end</span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-GB> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-GB>We found out that the problem is the combination of the negation with the conditional element “not” and the temporal constraint “[0ms,2500ms]”. Using the temporal operator “this after $cue” without a temporal constraint works correct in its semantics.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-GB>Interestingly, when adding a constraint (cueType == 1) to the type in the negative pattern the rule begins to work. The rule would look like as follows:</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-GB> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-autospace:none'><b><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata;color:#960000'>rule</span></b><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata'> <span style='color:green'>"test-rule"</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-autospace:none'><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata'> <b><span style='color:#960000'>agenda-group</span></b> <span style='color:green'>"evaluation"</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-autospace:none'><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata'> <b><span style='color:#960000'>salience</span></b> 100</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-autospace:none'><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-autospace:none'><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata'> <b><span style='color:#960000'>when</span></b></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-autospace:none'><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata'> $cue : AnalysisCue() <b><span style='color:#960000'>from</span></b> entry-point <span style='color:green'>"LowLevelCueStream"</span></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-autospace:none'><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata'> <b><span style='color:#960000'>not</span></b>(AnalysisCue(cueType == 1, <b><span style='color:#960000'>this</span></b> after[0ms,2500ms] $cue) <b><span style='color:#960000'>from</span></b> entry-point <span style='color:green'>"LowLevelCueStream"</span>)</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-autospace:none'><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata'> <b><span style='color:#960000'>then</span></b></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-autospace:none'><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata'> logger.debug(<span style='color:green'>"... some message .."</span>);</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span lang=EN-GB style='font-size:10.0pt;font-family:Inconsolata;color:#960000'>end</span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-GB> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-GB>unfortunately the rule then fires with a delay of 4 to 5 seconds. The second parameter of the temporal constraint influences the delay.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-GB>When changing the first parameter of the temporal constraint to a value greater than 0 the rule works as expected! The constraint would then look like as follows: “[1ms, 2500ms]”. Whereas in our case, we want to evaluate the time window from 0 – 2500ms.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-GB> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-GB>Our system works in the stream mode and we could reproduce this behaviour with the versions 5.3.1 and 5.4.0 Beta 1. </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-GB>Can anybody confirm if this is a bug in Drools, or did I overlook here something?</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-GB> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-GB> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-GB>Best regards,</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-GB style='color:#888888'>Wolfgang Weiss</span><span style='color:#888888'><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-GB style='color:#888888'> </span><span style='color:#888888'><o:p></o:p></span></p></div></div><p class=MsoNormal style='margin-bottom:12.0pt'><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></div><p class=MsoNormal><o:p> </o:p></p></div></body></html>