[rules-users] Java Enums in Guvnor

[Ian-D.Jones at ubs.com]

Hi All,
 
I've recently started using Drools and Guvnor, and so far really like
it!
 
I have one problem however, to do with Java enums in Guvnor. 
 
I have a simple enum as follows:
public enum STPRuleAction
{
    UNKNOWN, ACCEPT, REJECT
}

I can hand write a rule that works fine with this enum as follows:
rule "Retract rejected"
    dialect "mvel"
    when
         o : CtasOrder( stpRuleAction == STPRuleAction.REJECT )
    then
         o.setStatus( 1 );
        retract( o );
end

However, if I create a rule with Guvnor, it always puts quotes around
the condition, so seems to treat it as a string and it is never
triggered. I have created a Guvnor enumeration as follows:
 
'CtasOrder.stpRuleAction' : ['STPRuleAction.UNKNOWN=UNKNOWN',
'STPRuleAction.ACCEPT=ACCEPT', 'STPRuleAction.REJECT=REJECT']
 
Which gives me the correct drop down values in the Business Rule editor,
but the source of the rule looks like:
rule "Retract rejected"
    dialect "mvel"
    when
         o : CtasOrder( stpRuleAction == "STPRuleAction.REJECT")
    then
         o.setStatus( 1 );
        retract( o );
end

I've tried without the mapping in the enumeration (e.g ... :
['STPRuleAction.UNKNOWN', ...) and even removing the enumeration and
adding the text manually as a literal value. I can't see any way to
specfy a enum/qualifiedIdentifier as a condition in Guvnor. It works
fine as a consequence and produces a rule without quotes around (e.g.
o.setStpRuleAction( STPRuleAction.REJECT )...)
 
Many thanks for any assistance you can give.
Regards,
Ian
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