[rules-users] Drools 5.5 run time exception from the library code but no impact to the rule evaluation result

[Davide Sottara]

I can't say in general, it would depend on the expression.
I suspect this is a case where you have something like.
a == x || b == y
At some point MVEL "kicks in" and tries to optimize the expression,
but will fail if b ==y has never been evaluated because a == x
has always been satisfied by your current data.
In any case, I doubt the gain would be noticeable.
I think there was a similar discussion in one of the threads some week ago,
but I'm not sure whether it was here or on IRC :)
Davide

On 05/04/2013 09:36 AM, Sean Su wrote:
> Thanks Davide. Does this mean there might be a better way to write the
> expression that triggered this? If yes, I will look into it. I think
> the log does have the statement in it.
>
> Sean
>
>
> On Sat, May 4, 2013 at 3:13 AM, Davide Sottara <dsotty at gmail.com
> <mailto:dsotty at gmail.com>> wrote:
>
>     That exception is the result of an unsuccessful attempt to
>     optimize some
>     constraint execution.
>     That optimization is optional - exactly because it's not guaranteed to
>     succeed - so the engine
>     can continue normally. The exception is logged for tracing purposes
>     Best
>     Davide
>
>
>
>     --
>     View this message in context:
>     http://drools.46999.n3.nabble.com/rules-users-Drools-5-5-run-time-exception-from-the-library-code-but-no-impact-to-the-rule-evaluationt-tp4023669p4023678.html
>     Sent from the Drools: User forum mailing list archive at Nabble.com.
>     _______________________________________________
>     rules-users mailing list
>     rules-users at lists.jboss.org <mailto:rules-users at lists.jboss.org>
>     https://lists.jboss.org/mailman/listinfo/rules-users
>
>
>
>
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.jboss.org/pipermail/rules-users/attachments/20130504/bedbff83/attachment.html