Re: [rules-users] Is asterisk no longer valid in temporal constaints?
This is indeed a regression, due to the switch to "free form expressions"
and the resulting changes in the parser. Originally (5.1.) there were the
forms "*" (or "+*") and "-*" for positive and negative
infinity,
respectively. (The converter in TimeUtils still handles these strings; it's
DRLParser.g that needs to be fixed.) Omitting the 2nd operand in temporal
operators as a workaround isn't possible where "-*" is intended as 1st
operand.
Creeated JBRULES-3082 <https://issues.jboss.org/browse/JBRULES-3082>
-W
2011/6/13 Michael Anstis <michael.anstis(a)gmail.com>
Wouldn't you just use the single parameter form?
$order : DrugOrder((start != null && start before $now), (stop == null ||
stop after[-7d] $now))
I'm not the CEP expert though - I know we don't support "*" in
Guvnor's
guided editors though.
2011/6/13 Nathan Bell <Nathan.Bell(a)pharmacyonesource.com>
> In 5.1 this was valid syntax:
>
>
>
> rule "OrderActiveInLast7Days"
>
> when
>
> $order : DrugOrder((start != null && start before $now),
> (stop == null || stop after[-7d,*] $now))
>
> then
>
> #stuff
>
> end
>
>
>
>
>
> In 5.2.0.CR1 it complains about the asterisk. Is that no longer supported?
>
>
>
> The error I get is “no viable alternative at input '(' in rule
> "OrderActiveInLast7Days"”. If I remove the part of the constraint in
> brackets “[-7d,*]” then it compiles.
>
>
>
>
>
> Thank You,
>
>
>
> Nathan Bell
>
>
>
>
>
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> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
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