[rules-dev] Trouble using constants to access Maps

[Mark Proctor]

try seeing if your problems work the newest version of drools. If so 
then it is likely an issue with earlier versions of Drools, which are 
not likely to fix - so you'll have to upgrade.

Mark
On 31/01/2010 15:25, @ndré wrote:
> I tried version the MVEL version from 1.3.9 to 1.3.12, but I can still not
> make use of the constant class. Above MVEL 1.3.12 I get the
> lang.NoSuchMethodError: org.mvel.MVEL.setThreadSafe(Z)V
>
> The error message I receive now is different from the original one.
> Refering directly to the "constant" like this:
> AgreementOffer($logicalFixedNumber:configurationParameters[ParameterId.LOGICAL_NUMBER_FIXED.stringValue])
>
> produces this error,
>   org.mvel.CompileException: unable to resolve property: unable to resolve
> token: ParameterId.LOGICAL_NUMBER_FIXED.stringValue
>
> and when first assigns the value to a variable:
>
> $xx:String(this != null) from ParameterId.LOGICAL_NUMBER_FIXED.stringValue
> AgreementOffer($logicalFixedNumber:configurationParameters[$xx])
>
> produces a similar error:
>
> org.mvel.CompileException: unable to resolve property: $xx
>
>
> @ndré
>
>
>
>