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<div class=Section1>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hi Edson,<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'>Thanks for the response, I guess I jumped the gun on that
question because I am seeing some *<b>strange</b>* behaviour long before the
expire time.<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'> I have built an app which uses JUnit as the testing
framework which I am testing a set of CEP (time based) rules.<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 style='text-autospace:none'><b><span style='font-size:10.0pt;
font-family:"Courier New";color:#960000'>declare</span></b><span
style='font-size:10.0pt;font-family:"Courier New";color:black'>
ParameterUpdateEvent</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> @role(event)</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Courier New";
color:#960000'>end</span></b><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'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><b><span style='font-size:10.0pt;
font-family:"Courier New";color:#960000'>rule</span></b><span style='font-size:
10.0pt;font-family:"Courier New";color:black'> </span><span style='font-size:
10.0pt;font-family:"Courier New";color:green'>"Set Parameter Value"</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span><b><span
style='font-size:10.0pt;font-family:"Courier New";color:#960000'>when</span></b><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> ParameterUpdateEvent($name
: name, $newParamValue : value)</span><span style='font-size:10.0pt;font-family:
"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span><b><span
style='font-size:10.0pt;font-family:"Courier New";color:#960000'>from</span></b><span
style='font-size:10.0pt;font-family:"Courier New";color:black'> entry-point </span><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"ParamUpdateStream"</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> $param
: Parameter(name == $name)</span><span style='font-size:10.0pt;font-family:
"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span><b><span
style='font-size:10.0pt;font-family:"Courier New";color:#960000'>then</span></b><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> $param.setValue($newParamValue);</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> System.out.println(</span><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"New value
= "</span><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> + $param.getValue());</span><span style='font-size:10.0pt;
font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Courier New";
color:#960000'>End<o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><b><span style='font-size:10.0pt;
font-family:"Courier New";color:#960000'>rule</span></b><span style='font-size:
10.0pt;font-family:"Courier New";color:black'> </span><span style='font-size:
10.0pt;font-family:"Courier New";color:green'>"Print Average"</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span><b><span
style='font-size:10.0pt;font-family:"Courier New";color:#960000'>when</span></b><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> ParameterUpdateEvent($paramName
: name, $newParamValue : value)</span><span style='font-size:10.0pt;font-family:
"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span><b><span
style='font-size:10.0pt;font-family:"Courier New";color:#960000'>from</span></b><span
style='font-size:10.0pt;font-family:"Courier New";color:black'> entry-point </span><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"ParamUpdateStream"</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> $param
: Parameter(name == $paramName)</span><span style='font-size:10.0pt;font-family:
"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> Number($averageUpdateValue
: doubleValue) </span><b><span style='font-size:10.0pt;font-family:"Courier New";
color:#960000'>from</span></b><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> </span><b><span style='font-size:10.0pt;font-family:"Courier New";
color:#960000'>accumulate</span></b><span style='font-size:10.0pt;font-family:
"Courier New";color:black'>(</span><span style='font-size:10.0pt;font-family:
"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> ParameterUpdateEvent(name
== $paramName, $value : value) </span><span style='font-size:10.0pt;font-family:
"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> over
window:length( 15m )</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span><b><span
style='font-size:10.0pt;font-family:"Courier New";color:#960000'>from</span></b><span
style='font-size:10.0pt;font-family:"Courier New";color:black'> entry-point </span><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"ParamUpdateStream"</span><span
style='font-size:10.0pt;font-family:"Courier New";color:black'>,
average($value))</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span><span
style='font-size:10.0pt;font-family:"Courier New";color:olive'>#Number($averageUpdateValue
: doubleValue)</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span><b><span
style='font-size:10.0pt;font-family:"Courier New";color:#960000'>then</span></b><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span><span
style='font-size:10.0pt;font-family:"Courier New";color:olive'>#System.out.println("Here");</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> System.out.println(</span><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"Average
update value for "</span><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> + $paramName + </span><span style='font-size:10.0pt;font-family:
"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span><span
style='font-size:10.0pt;font-family:"Courier New";color:olive'> "
= " + $averageUpdateValue);</span><span style='font-size:10.0pt;
font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Courier New";
color:#960000'>End<o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Courier New";
color:#960000'><o:p> </o:p></span></b></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>In my unit test I create the necessary Parameter and add it to
working memory using session.insert, then I begin adding the events,
ParameterUpdateEvent using stream.insert, then call session.fireAllRules.<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=MsoListParagraph style='text-indent:-18.0pt;mso-list:l1 level1 lfo1'><![if !supportLists]><span
style='font-size:11.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Add value 56 – output of Print Average is 56.0<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l1 level1 lfo1'><![if !supportLists]><span
style='font-size:11.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Add Value 89 – output of Print Average is 72.5<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l1 level1 lfo1'><![if !supportLists]><span
style='font-size:11.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Add value 3 – output of Print Average is 49.33<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l1 level1 lfo1'><![if !supportLists]><span
style='font-size:11.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Add value 50 – output of Print Average is 49.5<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l1 level1 lfo1'><![if !supportLists]><span
style='font-size:11.0pt;font-family:Symbol;color:#1F497D'><span
style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Add value 90 – output of Print Average is 57.6<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'>First issue is the Print Average rule gets called for each
ParameterUpdateEvent in the stream, called once after I add the 56, called
twice after I add the 72.5, three times after 3, etc. but the Set Parameter
Value rule is only called once per event. This could be the root of the problem
but I am stumped as to why it is happening.<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'>Is also seems averages are being computed differently when I add
an advanceTime call to the pseudo clock before each event insert but I can’t
get clean data due to the above problem.<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'>Thanks<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'> Glenn<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>
<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"'>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>Edson Tirelli<br>
<b>Sent:</b> 15 February 2010 20:08<br>
<b>To:</b> Rules Users List<br>
<b>Subject:</b> Re: [rules-users] CEP Question<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><br>
Hi Glen,<br>
<br>
The averages are indeed recalculated on event expiration. Example:<br>
<br>
You have values for the following events:<br>
<br>
e1: 20<br>
e2: 30<br>
e3: 40<br>
<br>
So the average is 30. Whenever e1 is expired in your window,
the average is recalculated to 35 (assuming no new event arrived).<br>
<br>
What are you seeing there?<br>
<br>
Edson<o:p></o:p></p>
<div>
<p class=MsoNormal>2010/2/15 Glenn Macgregor <<a
href="mailto:gmacgregor@pocketkings.ie">gmacgregor@pocketkings.ie</a>><o:p></o:p></p>
<div>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Hi
All,<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>I
am still working through a CEP use case which is going fairly well. I have a
few rules and it seems they are working as I expect. Is there a way to get
called back when events go out of a time window? My current use case is
alerting, I have a stream of events (param updates) coming in and I create a
ParamUpdateEvent for each. I have a rule which averages the values in the
ParamUpdateEvent and tests against a threshold, that is working fine. The
problem is when I don’t receive any events for a period of time over the
window size I really want to the rule which calculates the average to fire when
anything is moved out of the window as well as when an update arrives, is this
possible?<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Thanks<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='color:#888888'> Glenn<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal style='margin-bottom:12.0pt'><br>
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<p class=MsoNormal><br>
<br clear=all>
<br>
-- <br>
Edson Tirelli<br>
JBoss Drools Core Development<br>
JBoss by Red Hat @ <a href="http://www.jboss.com">www.jboss.com</a><o:p></o:p></p>
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