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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">MVEL2-2.1.0.drools4.jar (packaged with Drools 5.3 final)<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> rules-users-bounces@lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org]
<b>On Behalf Of </b>Edson Tirelli<br>
<b>Sent:</b> Monday, February 13, 2012 5:48 PM<br>
<b>To:</b> Rules Users List<br>
<b>Subject:</b> Re: [rules-users] Using Character typed properties in Drool 5.3<o:p></o:p></span></p>
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<p class="MsoNormal"> Which version of MVEL are you using? It looks like a regression. I will ping Mario to take a look.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"> Edson<o:p></o:p></p>
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<p class="MsoNormal">On Mon, Feb 13, 2012 at 6:45 PM, Welsh, Armand <<a href="mailto:AWelsh@statestreet.com">AWelsh@statestreet.com</a>> wrote:<o:p></o:p></p>
<p class="MsoNormal">Correction:<br>
<br>
Even using Character.valueOf('Y') does not work anymore in Drools 5.3. The validate works, but the compile steps fails because Drools is treating 'Y' as a String. However, in Drools 5.2 and prior, 'Y' was properly casted to a Character when the property it
was being compared to was a property of type Character.<br>
<br>
If anyone has any insight on where the documentation address this change in behavior, I would appreciate some guidance. I am trying to re-standardize how our rules are coded for evaluating Character typed properties.<br>
<span style="color:#888888"><br>
<span class="hoenzb">Armand</span></span><o:p></o:p></p>
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-----Original Message-----<br>
From: <a href="mailto:rules-users-bounces@lists.jboss.org">rules-users-bounces@lists.jboss.org</a> [mailto:<a href="mailto:rules-users-bounces@lists.jboss.org">rules-users-bounces@lists.jboss.org</a>] On Behalf Of Welsh, Armand<br>
Sent: Monday, February 13, 2012 3:16 PM<br>
To: Rules Users List<br>
Subject: [rules-users] Using Character typed properties in Drool 5.3<br>
<br>
Community,<br>
<br>
In drools 5.2 I had the following LHS"<br>
<br>
when<br>
BloombergColumn (columnName == "CRNCY", $cur : stringValue != null)<br>
Country (currency == $cur, emergingMkt == 'Y' || countryCode in ("BH","HR","CZ","EE","HK","HU","IL","KR","KW","MO","OM","QA","SA","SG","SK","SI","TT"))<br>
<br>
<br>
I am switching to Drool 5.3, and Drools Guvnor reports the following error upon validate (or compile):<br>
<br>
[bum_code_value.currency 01] Unable to Analyse Expression emergingMkt == 'Y' || countryCode == "BH" || countryCode == "HR" || countryCode == "CZ" || countryCode == "EE" || countryCode == "HK" || countryCode == "HU" || countryCode == "IL" || countryCode
== "KR" || countryCode == "KW" || countryCode == "MO" || countryCode == "OM" || countryCode == "QA" || countryCode == "SA" || countryCode == "SG" || countryCode == "SK" || countryCode == "SI" || countryCode == "TT": [Error: Comparison operation requires compatible
types. Found class java.lang.Character and class java.lang.String] [Near : {... == "SK" || countryCode == "SI" || countryCode == "TT" ....}] ^ [Line: 7, Column: 28]<br>
<br>
Looking at the emergingMkt in my data model, I see that it is defined as a Character. If I change my LHS to:<br>
<br>
BloombergColumn (columnName == "CRNCY", $cur : stringValue != null)<br>
Country (currency == $cur, emergingMkt == Character.valueOf('Y') || countryCode in ("BH","HR","CZ","EE","HK","HU","IL","KR","KW","MO","OM","QA","SA","SG","SK","SI","TT"))<br>
<br>
<br>
Then the validate passes.<br>
<br>
Was this change in behavior intentional? I don't see a reference to this change in the Drools 5.3 documentation, and this makes for a harder to read rule for our Drools analysts.<br>
<br>
Thanks in advance,<br>
Armand<br>
<br>
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_______________________________________________<br>
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<a href="mailto:rules-users@lists.jboss.org">rules-users@lists.jboss.org</a><br>
<a href="https://lists.jboss.org/mailman/listinfo/rules-users" target="_blank">https://lists.jboss.org/mailman/listinfo/rules-users</a><o:p></o:p></p>
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<p class="MsoNormal">-- <br>
Edson Tirelli<br>
JBoss Drools Core Development<br>
JBoss by Red Hat @ <a href="http://www.jboss.com">www.jboss.com</a><o:p></o:p></p>
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