[rules-users] Guvnor data enumeration issue

[Michael Anstis]

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
> G. Patel ----------------------------------------- The information
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