[jboss-jira] [JBoss JIRA] (DROOLS-4902) Can not use mod operators (%) in when clause.

[Mario Fusco (Jira)]

     [ https://issues.redhat.com/browse/DROOLS-4902?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mario Fusco resolved DROOLS-4902.
---------------------------------
    Resolution: Done


Fixed in mvel with https://github.com/mvel/mvel/commit/691466dd5657317a421792dfb1c366394288c1fe

In the meanwhile you can workaround this issue with additional parenthesis like in:

{code}
Number( (this % 5) == 0 ) 
{code}

> Can not use mod operators (%) in when clause.
> ---------------------------------------------
>
>                 Key: DROOLS-4902
>                 URL: https://issues.redhat.com/browse/DROOLS-4902
>             Project: Drools
>          Issue Type: Bug
>          Components: core engine
>    Affects Versions: 7.31.0.Final
>            Reporter: xb l
>            Assignee: Mario Fusco
>            Priority: Major
>
> When I study drools , I write a rule use divide operator
> {code:java}
> rule "Buzz" salience 2
>  when
>   $n: Number( this / 5 == 3 )
>  then
>   System.out.println("Buzz");
> end
> {code}
> It's OK.
> But:
> {code:java}
> rule "Buzz" salience 2
>  when
>   $n: Number( this % 5 == 0 )
>  then
>   System.out.println("Buzz");
> end
> {code}
> Report parser error: Unable to Analyse Expression this % 5 == 0:
> The drools document mentioned the same example:
> Person( age > 100 && ( age % 10 == 0 ) )
> % is Multiplicative operators, why parser error?



--
This message was sent by Atlassian Jira
(v7.13.8#713008)