Consider this scenario:<br> insert facts, rules r, s, t in group G are activated<br> set focus for agenda group G<br> set focus for agenda group G<br> fireAllRules<br> rules r, s fire<br> rule t fires and inserts a fact so that rule u in G is activated<br>
rule u fires<br> G is popped from the stack - no more rules in G are activated<br> G is popped from the stack - no rules in G are activated<br><br>Two immediately successive pushes of the same agenda group are useless.<br>
<br>-W<br><br><div class="gmail_quote">On 14 November 2011 12:52, Zhao Yi <span dir="ltr"><<a href="mailto:zhaoyi0113@gmail.com" target="_blank">zhaoyi0113@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;">According to Drools export document,<br>
<br>
*Each time setFocus() is called it pushes that Agenda Group onto a stack.<br>
When the focus group is empty it is popped from the stack and the focus<br>
group that is now on top evaluates. An Agenda Group can appear in multiple<br>
locations on the stack. *<br>
<br>
If I run setFocus() on an agenda group two times, the agenda group should be<br>
in multiple locations on the stack, why the rules in this agenda group are<br>
fired only once?<br>
<br>
Thanks,<br>
Zhao Yi<br>
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