Correction:
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.
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.
Armand
-----Original Message-----
From: rules-users-boun...@lists.jboss.org
[mailto:rules-users-boun...@lists.jboss.org] On Behalf Of Welsh, Armand
Sent: Monday, February 13, 2012 3:16 PM
To: Rules Users List
Subject: [rules-users] Using Character typed properties in Drool 5.3
Community,
In drools 5.2 I had the following LHS"
when
BloombergColumn (columnName == "CRNCY", $cur : stringValue != null)
Country (currency == $cur, emergingMkt == 'Y' || countryCode in
("BH","HR","CZ","EE","HK","HU","IL","KR","KW","MO","OM","QA","SA","SG","SK","SI","TT"))
I am switching to Drool 5.3, and Drools Guvnor reports the following error upon
validate (or compile):
[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]
Looking at the emergingMkt in my data model, I see that it is defined as a
Character. If I change my LHS to:
BloombergColumn (columnName == "CRNCY", $cur : stringValue != null)
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"))
Then the validate passes.
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.
Thanks in advance,
Armand
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