Your use of the after operator is correct. The documentation tells you about that, although in textual form:
http://docs.jboss.org/drools/release/5.3.0.Final/drools-fusion-docs/html_single/index.html#d0e611 This presentation has the 2 tables of operators: http://www.slideshare.net/ge0ffrey/applying-cep-drools-fusion-drools-jbpm-bootcamps-2011 Edson On Tue, Dec 13, 2011 at 12:11 PM, Mike Melton <mike.mel...@gmail.com> wrote: > Apologies for the stupid question, but I haven't seen anything in the > documentation regarding this and I want to verify my solution. Say I > have a point-in-time event (i.e., duration of 0) that I want to > correlate to another point-in-time event. I want a rule that will > activate if the timestamp of one is greater than or equal to the > other, basically "after or coincides". I wrote a test using the > following rule and it seemed to work: > > rule "Greater Than or Equal" > when > $e1 : TestEvent( $id : id ) > $e2 : TestEvent( id != id, this after[0ms] $e1 ) > then > System.out.println($e2 + " is greater than or equal to " + $e1); > end > > I realize this rule will fire twice if the event timestamps are equal, > but it's just for demonstration purposes; my question is specifically > about the "after[0ms]" part. Is this the way to go to accomplish what > I need? It seems so simple but I have this annoying feeling that I'm > missing something. > > On a slightly related topic, is there an updated version of the > temporal operators image from the Drools Fusion homepage? It is a > great visual description of the operators and I want to print it out > and post it at my desk, but it doesn't include all of the operators. > > Image: > http://www.jboss.org/drools/drools-fusion/mainColumnParagraphs/02/imageBinary/temporal-operators.png > >From page: http://www.jboss.org/drools/drools-fusion.html > > Thanks > Mike > _______________________________________________ > rules-users mailing list > rules-users@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > -- Edson Tirelli JBoss Drools Core Development JBoss by Red Hat @ www.jboss.com
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