[rules-users] Compilation errors with 5.3.0.CR1

[Wolfgang Laun]

For the sake of our readers, I repeat the rule:

rule "enabled paramId: 1, id: 0"
salience 50
when
    (def0: EmParamDefinition(paramName == "p2", listIndex == -1) and
EmParamValue(paramDefinitionId == def0, requiredValue == 1))
    $param : EmParamValue(id == 1, enabled == false)
    not ParentDisabled(id == 1)
then
    $param.setEnabled(true);
    update($param);
end

and the exception:

[Error: unexpected end of statement]
[Near : {... def ....}]
                ^
[Line: 1, Column: 4]
    at org.mvel2.compiler.AbstractParser._captureBlock(AbstractParser.java:1470)
    ...

This looks like an MVEL bug. Try this simpler form:
   def0: EmParamDefinition(paramName == "p2", listIndex == -1)
             EmParamValue(paramDefinitionId == def0, requiredValue == 1)

You should also file a JIRA.

Snags like this are due to a completer rework of the DRL parser after 5.1.1.

-W






On 5 October 2011 11:34, wyborowiec <wyborowiec at gmail.com> wrote:
>
> Hello
>
> I've got following rule:
>
>
>
> It compiles fine under Drools 5.1.1, but after switching to 5.3.0.CR1 I get
> following exception:
>
>
>
> It is
>
>
>
> line that causes the problem - the exeption disappears after removing it.
> What's interesting, when I add '$' sign to binding variable name, and the
> line looks like:
>
>
>
> instead of the exception I get DRL error:
>
>
>
> For completness, this is how I add DRL resources:
>
>
>
> I would be grateful if someone has an idea, why after switching Drools
> version such problem exists.
>
>
>
> --
> View this message in context: http://drools.46999.n3.nabble.com/Compilation-errors-with-5-3-0-CR1-tp3396025p3396025.html
> Sent from the Drools: User forum mailing list archive at Nabble.com.
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