Although Drools makes extensive usage of MVEL, it is always embedded in
the DRL language. So, it is Drools that defines that a field constraint is
always a field accessor in the left with one or more restrictions in the
right.
We need to find a way to make the Drools x MVEL relationship more clear
because it is not the first time this slight confusion is made.
Anyway, docs are being updated, but take a look at the Pattern
documentation (item 7.8.2.1):
https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/t...
[]s
Edson
2009/3/17 Femke De Backere <femmyke(a)gmail.com>
Thx!
Do you know where I could find a tutorial of MVEL in Drools, because I
looked at some MVEL tutorials yesterday and I didn't find the solution...
2009/3/17 Edson Tirelli <tirelli(a)post.com>
>
> Left side of a constraint should always be a field name... no
> expression allowed. Either move the expression to the right side or use
> eval.
>
> Patient( sedation.ultiva > ( 0.1 - 0.02 ) )
>
> Or even better:
>
> Patient(sedation.ultiva > 0.08)
>
> []s
> Edson
>
> 2009/3/16 Femke De Backere <femmyke(a)gmail.com>
>
>> Hi,
>>
>> The following expression keeps returning the error [112,32]: [ERR 103]
>> Line 112:32 no viable alternative at input '+' in rule
>> "RuleFlow-Split-masterproef.ruleflows.shortsedation-18-22" in pattern
>> Patient:
>> Patient(sedation.ultiva+0.02 > 0.1)
>> with sedation.ultiva returning a double
>> What am I doing wrong?
>> Thx,
>> Femke
>>
>> _______________________________________________
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>> rules-users(a)lists.jboss.org
>>
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>>
>>
>
>
> --
> Edson Tirelli
> JBoss Drools Core Development
> JBoss, a division of Red Hat @
www.jboss.com
>
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>
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>
>
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Edson Tirelli
JBoss Drools Core Development
JBoss, a division of Red Hat @
www.jboss.com