Sergey,
That is how it is supposed to work. A field constraint in Drools always
has a field at its left side. If you want arbitrary expression, just embed
it in an inline eval:
S : Supplier(
$sts : supplierBusinessStatus.businessStatus,
$csts :
corporateSupplier.supplierBusinessStatus.businessStatus,
eval ( $sts != $csts )
)
Although, for this specific case, it would be better (more performatic)
to simply write:
S : Supplier(
$sts : supplierBusinessStatus.businessStatus,
$csts :
corporateSupplier.supplierBusinessStatus.businessStatus != $sts
)
[]s
Edson
2007/8/10, Manukyan, Sergey <SManukyan(a)lear.com>:
Folks,
I found that drools 4.0GA doesn't recognize variables in the left side
of operator expression
Like this produces error:
When
S : Supplier(
$sts : supplierBusinessStatus.businessStatus,
$csts :
corporateSupplier.supplierBusinessStatus.businessStatus,
$sts != $csts
)
Then
...
It tries to treat the $sts variable as a field of Supplier, instead
understanding that it is a variable declared earlier,
Please advise,
Thanks,
-Sergey
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