One way that might be implemented is via a single dedicated fact type (call it Horloge) with a single field (temps). Then you could write all sorts of relations with the times in your facts. In order to work in the context of rete, Horloge's temps would have to be updated according to the progress of time - but how big do you want your <a href="http://en.wikipedia.org/wiki/Chronon">chronons</a> to be? Right, this could be made configurable. But how will this scale? Data structures keeping a large number of integers in partially sorted order are <a href="http://www.cs.cornell.edu/Courses/cs312/2007sp/lectures/lec25.html">available</a>, but Rete works differently.<br>
<br>Assuming that all your time-dependent facts implement a specific interface, and given Drools' WM event listener, it's easy to implement a solution for timeouts that does not require periodic polling.<br><br>-W<br>
<br><br><div class="gmail_quote">On 9 May 2011 20:37, kkelleyjr <span dir="ltr"><<a href="mailto:karl.kelley.jr@gmail.com">karl.kelley.jr@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
So, from all of the reading and what you have told me, this is no way<br>
currently to do evaluations of time with the session clock on the LHS...<br>
<br>
That statement being true: Is there any desire or plan to do evaluations of<br>
time with the session clock on the LHS (aka the condition)?<br>
<br>
I think it would be useful, because all processing to gather facts could be<br>
based on cron rules... then there is no need to write cron jobs for those<br>
processes...<br>
<br>
Is that a bad idea?<br>
<font color="#888888"><br>
--<br>
View this message in context: <a href="http://drools.46999.n3.nabble.com/rules-users-Firing-the-rule-at-the-basis-of-time-tp2889494p2919950.html" target="_blank">http://drools.46999.n3.nabble.com/rules-users-Firing-the-rule-at-the-basis-of-time-tp2889494p2919950.html</a><br>
</font><div><div></div><div class="h5">Sent from the Drools: User forum mailing list archive at Nabble.com.<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><br>
</div></div></blockquote></div><br>