[rules-users] MVEL strict-mode vs. performance

[Mark Proctor]

Have a read of the release notes around type safety. There are some 
situations where Drools was not correctly enforcing type safety, which 
have since been corrected. So probably a badly written rule is now 
getting picked up. As a work around you can force some patterns to 
evaluate dynamically using @typesafe.

Mark
On 13/02/2012 22:12, womuji wrote:
> Hi,
>
> We are upgrading from Drools 5.1 to 5.3 to improve the performance, but we
> are hoping to keep our drl files intact. We were trying to use the old drl
> files by setting "drools.dialect.mvel.strict=false", but somehow with this
> setting we still got " unable to resolve method using strict-mode .." error
> from time to time.
>
> I'm wondering if there is any correlation between this strict-mode and the
> performance gain, if in order to achieve the performance gain, we have to
> set the strict-mode to true, then we will make changes to our drl files,
> instead of spending time to figure out why the effect of
> "drools.dialect.mvel.strict=false" is sporadic.
>
> Thanks.
>
> --
> View this message in context: http://drools.46999.n3.nabble.com/MVEL-strict-mode-vs-performance-tp3741814p3741814.html
> Sent from the Drools: User forum mailing list archive at Nabble.com.
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