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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>Hi, <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>thanks for the reply. You are right, it’s just not working the
otherway round, if there would be no “not”<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>$that : Thing(..)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>$other : Thing ( this != $that , …)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>would match always twice. For example, if there were two “Thing”’s
A and B it would match for the combination AB as well as BA… I know this was
actually not my question, but I guess it was the reason I got confused </span><span
lang=EN-US style='font-size:10.0pt;font-family:Wingdings;color:#1F497D'>J</span><span
lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>Thanks again!<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US 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-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>Von:</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>Im Auftrag von </b>W</span><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>olfgang Laun<br>
<b>Gesendet:</b> Mittwoch, 26. Mai 2010 10:01<br>
<b>An:</b> Rules Users List<br>
<b>Betreff:</b> Re: [rules-users] Detecting two instances of the same event
withFusion Rules<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>But <br>
<br>
$that : Thing(...)<br>
Thing( this != $that,...)<br>
<br>
is the standard way of ensuring that a pattern matches two distinct objects of
the same class, and there is no reason why you shouldn't be able to use it with
not as well:<br>
<br>
$that : Thing(...)<br>
not ( Thing( this != $that,... ) ) <br>
<br>
"Given one Thing (with constraints...) and *not* having any *other* Thing
(with constraints...), then..."<br>
<br>
-W<br>
<br>
<o:p></o:p></p>
<div>
<p class=MsoNormal>2010/5/26 Georg Maier <<a href="mailto:Georg.Maier@cjt.de">Georg.Maier@cjt.de</a>><o:p></o:p></p>
<div>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US>Hi,</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US> </span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US>I’m new to Drools and currently trying to implement some examples
using CEP / Fusion. I got stuck on a problem to which I can’t find any solution
in the online documentation, so I’m hoping for your help.</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US>I’m trying to write a rule, which is activated whenever a certain
event occurs and no event of the same type occurred in the e.g. last 5 minutes
(or just at the same time). I know how to do it if these are events of
different types, but I can’t find any way for events of the same type. What I
tried is something like that:</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US> </span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>$error
: RouterErrorEvent ( $name : routerName ) </span><b><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:#960000'>from</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>
entry-point </span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:green'>"abc"</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>not
($otherError : RouterErrorEvent ( (</span><b><span lang=EN-US style='font-size:
10.0pt;font-family:"Courier New";color:#960000'>this</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'> coincides
$error) && (routerName == $name) ) </span><b><span lang=EN-US
style='font-size:10.0pt;font-family:"Courier New";color:#960000'>from</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:black'>
entry-point </span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";
color:green'>"abc")</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US> </span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US>First of all there’s the problem, that $error and $otherError will
be the same instance if a “RouterEventError” has been inserted from the “abc” entry
point. Adding a (this != $error) to the second, ($otherError) obviously is no
solution to that as well. </span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US>If it were two different events something like in example 2.19 would
work:</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US> </span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>$error1 :
ErrorOneEvent( $id : id ) </span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>not ($error2 :
ErrorTwoEvent( id == $id, this coincides $error1 ))</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US> </span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US>I’m kinda sure I’m missing something pretty “easy” here… or is this
approach completely wrong?</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US>As I’m aware of the fact that I couldn’t be more of a newbie </span><span
lang=EN-US style='font-family:Wingdings'>J</span><span lang=EN-US> I would
appreciate any suggestions for nice tutorials or further reading as well!</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US> </span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US>Thanks in advance!</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US> </span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US style='color:#888888'>Georg</span><span style='color:#888888'><o:p></o:p></span></p>
</div>
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<p class=MsoNormal style='margin-bottom:12.0pt'><br>
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<p class=MsoNormal><o:p> </o:p></p>
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