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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi Thomas, thanks for the info!<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>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I googled it quite a bit and I think it’s a path to be explored, albeit I’ve saw several messages on the mailing list regarding performance issues
when using fireUntilHalt.<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>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Nonetheless, I must get some free time to change my JUnits to test that.<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>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks for pointing out the direction!<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>
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<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Verdana","sans-serif";color:#1F497D">Vítor Mendonça Moreira<br>
</span><b><span style="font-size:7.5pt;font-family:"Verdana","sans-serif";color:#8A9A37">Analista / Programador<br>
Direcção de Investigação e Desenvolvimento</span></b><span style="font-size:7.5pt;font-family:"Verdana","sans-serif";color:#1F497D"><br>
<br>
Rua Dr. Francisco Sá Carneiro, nº. 4 r/c esq.<br>
2500 - 206 - Caldas da Rainha<br>
Tel: (+351) 262 832 196<br>
Fax: (+351) 262 186 455<br>
Web: <a href="http://www.makewise.pt">www.makewise.pt</a><br>
Uma empresa: <a href="http://www.sousapedro.com">Grupo Sousa Pedro</a> <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>Swindells, Thomas<br>
<b>Sent:</b> quinta-feira, 17 de Março de 2011 11:29<br>
<b>To:</b> Rules Users List<br>
<b>Subject:</b> Re: [rules-users] Basic doubt regarding Drools Fusion - @expires<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Have you looked at fireUntilHalt?<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>
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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>Makewise - Vitor Rui Mendonça<br>
<b>Sent:</b> 17 March 2011 11:20<br>
<b>To:</b> 'Rules Users List'<br>
<b>Subject:</b> Re: [rules-users] Basic doubt regarding Drools Fusion - @expires<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB"><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">Edison, first of all, thanks for your quick reply!<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>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Those initial words caught my attention, although: “</span><span lang="EN-US">By default, Drools does not start any internal thread</span><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","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>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">What do you mean “by default”?
<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">I know there are ways to force the event to be expired but I’m looking for a solution that doesn’t involve to write new rules.<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-bottom:solid windowtext 1.0pt;padding:0cm 0cm 1.0pt 0cm">
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">For example, I’m using this kind of solution:<o:p></o:p></span></p>
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<b><span style="font-size:10.0pt;font-family:"Lucida Console";color:#960000">declare</span></b><span style="font-size:10.0pt;font-family:"Lucida Console";color:black"> A</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-autospace:none">
<span style="font-size:10.0pt;font-family:"Lucida Console";color:black"> @role( event )</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-autospace:none">
<span style="font-size:10.0pt;font-family:"Lucida Console";color:black"> @expires( 1h )</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-US" style="font-size:10.0pt;font-family:"Lucida Console";color:#960000">end</span></b><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console";color:#960000">rule</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console";color:black">
</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console";color:green">"internal - expiring A"</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console";color:black"> timer(</span><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console";color:#960000">int</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console";color:black">:1h)</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console";color:#960000">when</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console";color:black"> $a : A()
</span><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console";color:#960000">from</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console";color:black"> entry-point
</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console";color:green">"incoming"</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console";color:#960000">then</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console";color:black">
</span><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console";color:#960000">retract</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console";color:black">($a);</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console""><o:p></o:p></span></p>
<div style="border:none;border-bottom:solid windowtext 1.0pt;padding:0cm 0cm 1.0pt 0cm">
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Lucida Console";color:#960000">end</span></b><span lang="EN-US" 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"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","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">Although this solution works (from Drools 5.1), I’m forced to write a rule to expire an event that’s supposed to be expired initially.<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">There’s a simpler way to do this? I’m thinking correctly?<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>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Once again, thanks!<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>
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<p class="MsoNormal"><span style="color:#1F497D"><img border="0" width="389" height="6" id="Picture_x0020_1" src="cid:image001.jpg@01CBE49B.0B525500"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Verdana","sans-serif";color:#1F497D">Vítor Mendonça Moreira<br>
</span><b><span style="font-size:7.5pt;font-family:"Verdana","sans-serif";color:#8A9A37">Analista / Programador<br>
Direcção de Investigação e Desenvolvimento</span></b><span style="font-size:7.5pt;font-family:"Verdana","sans-serif";color:#1F497D"><br>
<br>
Rua Dr. Francisco Sá Carneiro, nº. 4 r/c esq.<br>
2500 - 206 - Caldas da Rainha<br>
Tel: (+351) 262 832 196<br>
Fax: (+351) 262 186 455<br>
Web: <a href="http://www.makewise.pt">www.makewise.pt</a><br>
Uma empresa: <a href="http://www.sousapedro.com">Grupo Sousa Pedro</a> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D"><img border="0" width="119" height="60" id="Picture_x0020_2" src="cid:image002.jpg@01CBE49B.0B525500"><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>Edson Tirelli<br>
<b>Sent:</b> quarta-feira, 16 de Março de 2011 18:38<br>
<b>To:</b> Rules Users List<br>
<b>Subject:</b> Re: [rules-users] Basic doubt regarding Drools Fusion - @expires<o:p></o:p></span></p>
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<p class="MsoNormal"> By default, Drools does not start any internal thread, so that you can embed it in non-multithread applications or in JEE containers. That means that the actual release of events in such cases depends on triggers. In your example, after
1h has passed, whenever something happens to the session (a new rule is fired, a new event is inserted, the session clock is advanced, etc), the event will be expired as part of the action. Remember though that it only happens when running in STREAM mode.
In CLOUD mode, event garbage collection does not make sense and will not happen.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"> Edson<o:p></o:p></p>
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<p class="MsoNormal">2011/3/16 Makewise - Vitor Rui Mendonça <<a href="mailto:Vitor.Mendonca@brisa.pt">Vitor.Mendonca@brisa.pt</a>><o:p></o:p></p>
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<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"><span lang="EN-US">I’ve got a really basic doubt… I’ve read several documentation regarding it but I think I need some advice here…</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">Imagine that I have an event:</span><o:p></o:p></p>
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<b><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console";color:#960000">declare</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console";color:black"> A</span><o:p></o:p></p>
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<span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console";color:black"> @role( event )</span><o:p></o:p></p>
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<span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console";color:black"> @expires( 1h )</span><o:p></o:p></p>
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<b><span lang="EN-US" style="font-size:10.0pt;font-family:"Lucida Console";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-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">On my Java code, I call “fireAllRules()” method every time that I put an event into the working memory.</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">My doubt: When does event A expires?</span><o:p></o:p></p>
<p><span lang="EN-US">a)</span><span lang="EN-US" style="font-size:7.0pt"> </span>
<span lang="EN-US">One hour after it was inserted (time-based and without the “fireAllRules()” method call) or
</span><o:p></o:p></p>
<p><span lang="EN-US">b)</span><span lang="EN-US" style="font-size:7.0pt"> </span>
<span lang="EN-US">by calling “fireAllRules()” method (event-based)</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">T.I.A.</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:7.5pt">Vítor Mendonça Moreira<br>
<b><span style="color:#8A9A37">Analista / Programador<br>
Direcção de Investigação e Desenvolvimento</span></b><br>
<br>
Rua Dr. Francisco Sá Carneiro, nº. 4 r/c esq.<br>
2500 - 206 - Caldas da Rainha<br>
Tel: (+351) 262 832 196<br>
Fax: (+351) 262 186 455<br>
Web: <a href="http://www.makewise.pt" target="_blank">www.makewise.pt</a><br>
Uma empresa: <a href="http://www.sousapedro.com" target="_blank">Grupo Sousa Pedro</a>
</span><o:p></o:p></p>
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_______________________________________________<br>
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<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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