[rules-users] Guvnor data enumeration issue

[GPatel at tsys.com]

created jira 3270 for this.

Also created 3271 along the same lines.





From:   Michael Anstis <michael.anstis at gmail.com>
To:     Rules Users List <rules-users at lists.jboss.org>
Date:   10/28/2011 12:07 AM
Subject:        Re: [rules-users] Guvnor data enumeration issue
Sent by:        rules-users-bounces at lists.jboss.org



You'll need to raise a JIRA for an enhancement.

Dependent enumerations are currently only designed to operate between 
enumerations.

With kind regards,

Mike

2011/10/28 <GPatel at tsys.com>
I am trying to use data enumerations and running into a problem. Following 
the Vehicle engineType/fuelType data enumeration example in the Guvnor 
manual, I created the following enumeration list and it works: 

'Vehicle.engineType' : (new test.VehicleHelper()).getEngineTypes() 
'Vehicle.fuelType[engineType]' : '(new 
test.VehicleHelper()).getFuelTypes("@{engineType}")' 

VehicleHelper: 
------------ 

public class VehicleHelper { 
        
        public List<String> getEngineTypes(){ 
                List<String> engineTypes = new ArrayList<String>(); 
                engineTypes.add("Petrol"); 
                engineTypes.add("Diesel"); 
                return engineTypes; 
        } 
        
        public List<String> getFuelTypes(String engineType){ 
                List<String> fuelTypes = new ArrayList<String>(); 
                if("Petrol".equalsIgnoreCase(engineType)){ 
                        fuelTypes.add("ULP"); 
                        fuelTypes.add("PULP"); 
                } 
                else if("Diesel".equalsIgnoreCase(engineType)){ 
                        fuelTypes.add("BIO"); 
                        fuelTypes.add("NORMAL"); 
                } 
                else{ 
                        fuelTypes.add("Default Fuel 1"); 
                        fuelTypes.add("Default Fuel 2"); 
                } 
                return fuelTypes; 
        } 

} 

Above works as expected. 

Problem: 

I want to only have an enumeration on Vehicle.fuelType that depends on the 
value of engineType, without specifying an enumeration on engineType. So, 
I took out the first line in my enumeration list so that it is now: 

'Vehicle.fuelType[engineType]' : '(new 
test.VehicleHelper()).getFuelTypes("@{engineType}")' 

But that does not work. When I create a rule, VehicleHelper.getFuelTypes 
does not get called and the dropdown for fuelType is not a list. 

How do I get this working? 

Thanks 
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