[rules-users] No viable alternative at input since upgrade to 5.4.0.Final

[Wolfgang Laun]

Do not use '(' and ')' in patterns. This confuses the overall regex
for matching a line. This is sufficient:

   {constraint:>|>\=|<|<\=|\=\=|!\=}

-W

On 02/10/2012, tekbrain <jlpiolain at plexo.ca> wrote:
> Hi,
>
> We have rules in domain specific language that don't work anymore.
>
> In our dsl mapping definition:
>
> Language expression: COUNT\({attr:[A-Z][A-Z_\d]+}\)
> {constraint:(>|>\=|<|<\=|\=\=|!\=)}  {num:[\d\.]+}
> Rule mapping: ArrayList( size {constraint} {num} ) from collect (Fact( name
> == "{attr}", dataset == "0", ignore == "false" ))
> Scope: condition (when)
>
> [condition][]COUNT\({attr:[A-Z][A-Z_\d]+}\)
> {constraint:(>|>\=|<|<\=|\=\=|!\=)} {num:[\d\.]+}=ArrayList( size
> {constraint} {num} ) from collect (Fact( name == "{attr}", dataset == 0,
> ignore == false ))
>
>
> One of the rules:
> rule 'BP - HOMULTIPLE'
>   agenda-group "user-rules"
>   no-loop true
>   when
>     COUNT(BP_HOCONDITION) >= 2
>   then
>     set BP_HOMULTIPLE
> end
>
> Expanded rule should be something like this:
> rule 'BP - HOMULTIPLE'
>   agenda-group "user-rules"
>   no-loop true
>   when
>     ArrayList(size >= 2) from collect (Fact( name == "BP_HOCONDITION",
> dataset == "0", ignore == "false" ))
>   then
>     insertLogical(new StateFact("BP_HOMULTIPLE"));
> end
>
> Everything was working with Drools 5.1 but with Drools 5.4.0.Final, we have
> this kind of errors:
> [3788,20]: [ERR 101] Line 3788:20 no viable alternative at input '>=' in
> rule "BP - HOMULTIPLE"
>
> Did we forget something?
>
> Thanks,
>
> Jean-Luc
>
>
>
>
>
>
> --
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> http://drools.46999.n3.nabble.com/No-viable-alternative-at-input-since-upgrade-to-5-4-0-Final-tp4020083.html
> Sent from the Drools: User forum mailing list archive at Nabble.com.
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