RE: [rules-users] bug or feature not yet implemented

Thanks Edson for workaround, IMHO that looks like a limitation to me, is there a particular reason why left side should always be a field? -Sergey ________________________________ From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Edson Tirelli Sent: Friday, August 10, 2007 11:58 AM To: Rules Users List Subject: Re: [rules-users] bug or feature not yet implemented 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&gt;: 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 ********************** ** LEGAL DISCLAIMER ** ********************** This E-mail message and any attachments may contain legally privileged, confidential or proprietary information. If you are not the intended recipient(s), or the employee or agent responsible for delivery of this message to the intended recipient(s), you are hereby notified that any dissemination, distribution or copying of this E-mail message is strictly prohibited. If you have received this message in error, please immediately notify the sender and delete this E-mail message from your computer. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Edson Tirelli Software Engineer - JBoss Rules Core Developer Office: +55 11 3529-6000 Mobile: +55 11 9287-5646 JBoss, a division of Red Hat @ www.jboss.com