<br> Maciek,<br><br> You can use "-*" for negative infinity and "*" for positive infinity. <br><br> Edson<br><br><br><br><br><div class="gmail_quote">2009/10/21 Maciej Prochniak <span dir="ltr"><<a href="mailto:mpr@touk.pl">mpr@touk.pl</a>></span><br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hello,<br>
<br>
I have following use case in drools fusion:<br>
<br>
event A has specified duration (different for each occurence)<br>
I would like to fire rule if event B does not happen eventA.endTimestamp<br>
-2minutes.<br>
e.g. event A has duration 20minutes, it's inserted on 13:22:00, then<br>
rule should fire on 13:40 if event B does not occur before.<br>
<br>
I looked on temporal operators - but could not find anything suitable,<br>
it should be sth like:<br>
when<br>
$eventA<br>
not (EventB( this after[ negative infinity, -2m ] $eventA )<br>
then<br>
...<br>
end<br>
<br>
- but there's no infinity symbol in drools, nor java ;)<br>
<br>
Any ideas?<br>
<br>
thanks & br,<br>
maciek<br>
<br>
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</blockquote></div><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><br>