This is how to do it - although it's not recommended to use globals in rule conditions. (For one thing: the list must be complete before you call fireAllRules().)<br><br>global List list<br><br>rule "count from global List - but don't do it"<br>
when<br> Number( $i: intValue ) from accumulate( Person( age > 20 ) from list, count(1) )<br>then<br> System.out.println( $i + " Persons" );<br>end<br><br>-W<br><br><br><div class="gmail_quote">On 6 July 2011 12:08, wendy <span dir="ltr"><<a href="mailto:w.mungovan@yahoo.com">w.mungovan@yahoo.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;">I think normally setGlobal variables are only used when you want to be able<br>
to call back out to the java code again. (I'm not an expert by any stretch<br>
so please take that with a grain of salt.) So you might be able to just<br>
insert the list.<br>
<br>
I'm going to assume the List is really List<NombersUnTypeDefault> if that is<br>
not true please let me know.<br>
<br>
what about something like this? First is collects all the<br>
NombersUnTypeDefault that match your constraints from list then it counts<br>
them using an accumulate function.<br>
<br>
global java.util.List list<br>
<br>
rule "Calcul redondance"<br>
when<br>
$i: Number() from accumulate($c: NombersUnTypeDefault()<br>
from collect(NombersUnTypeDefault($code ==<br>
"AAA", $int == 1) from list)<br>
, count($c));<br>
then<br>
System.out.println($i);<br>
end<br>
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