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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks Edson for workaround,</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>IMHO that looks like a limitation to me,
is there a particular reason why left side should always be a field?</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>-Sergey</span></font></p>
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10.0pt;font-family:Arial;color:navy'> </span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
rules-users-bounces@lists.jboss.org
[mailto:rules-users-bounces@lists.jboss.org] <b><span style='font-weight:bold'>On
Behalf Of </span></b>Edson Tirelli<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, August 10, 2007 11:58
AM<br>
<b><span style='font-weight:bold'>To:</span></b> Rules Users List<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [rules-users] bug or
feature not yet implemented</span></font></p>
</div>
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12.0pt'> </span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><br>
Sergey,<br>
<br>
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:<br>
<br>
S : Supplier( <br>
$sts :
supplierBusinessStatus.businessStatus,<br>
$csts : corporateSupplier.supplierBusinessStatus.businessStatus,
<br>
eval ( $sts != $csts ) <br>
) <br>
<br>
Although, for this specific case, it would be better (more
performatic) to simply write:<br>
<br>
S : Supplier(<br>
$sts :
supplierBusinessStatus.businessStatus,<br>
$csts : corporateSupplier.supplierBusinessStatus.businessStatus != $sts<br>
)<br>
<br>
[]s<br>
Edson</span></font></p>
<div>
<p class=MsoNormal><span class=gmailquote><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>2007/8/10, Manukyan, Sergey <<a
href="mailto:SManukyan@lear.com">SManukyan@lear.com</a>>:</span></font></span></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><br>
Folks,<br>
<br>
I found that drools 4.0GA doesn't recognize variables in the left side<br>
of operator expression<br>
<br>
Like this produces error:<br>
<br>
<br>
When<br>
S : Supplier(<br>
$sts :
supplierBusinessStatus.businessStatus ,<br>
$csts
:<br>
corporateSupplier.supplierBusinessStatus.businessStatus,<br>
$sts
!= $csts<br>
)<br>
Then<br>
...<br>
<br>
<br>
<br>
It tries to treat the $sts variable as a field of Supplier, instead <br>
understanding that it is a variable declared earlier,<br>
<br>
Please advise,<br>
<br>
Thanks,<br>
<br>
-Sergey<br>
<br>
<br>
<br>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><br>
<br clear=all>
<br>
-- <br>
Edson Tirelli<br>
Software Engineer - JBoss Rules Core Developer<br>
Office: +55 11 3529-6000<br>
Mobile: +55 11 9287-5646 <br>
JBoss, a division of Red Hat @ <a href="http://www.jboss.com">www.jboss.com</a>
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