Hi All,

Could some one reply to the below mentioned problem..

Thanks,
Nilima
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From: Nilima R/PNE/TCS
To: rules-users@lists.jboss.org
Date: 03/31/2010 03:37 PM
Subject: Drools Guvnor: Loading enums programmatically



Hi All,


I'm trying to do a simple example of loading enums programmatically following the Drools Guvnor Docuemntation.
I'm on Drools Guvnor 5, Java 1.6 running under Jboss.

I'm trying to define this 'data enumeration/drop down list'

package opensource.test;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class SampleDataSource2 {
       
                  public Map<String, List<String>> loadData() {
                         
                        Map<String, List<String>> data =
                  new HashMap<String,List<String>>();
               
                        List<String> d = new ArrayList<String>();
                         
                    d.add("A");
                    d.add("B");
                    d.add("C");
                    d.add("D");
                    d.add("E");
                    data.put("Employee.band", d);
                    return data;
                 }
}

The jar containing the SampleDataSource2 has been defined as a model within Guvnor and I defined another declarative model Employee with fields name,band,rating.

Here's what I put in the 'Data enumeration' text window
Employee.band =(new SampleDataSource2()).loadData()

When validating the Data enumeration from Guvnor, I get the following error:
       Unable to load enumeration data.
                unable to resolve class: DataEnumSource
                Error type: org.mvel.CompileException
Any help will be highly appreciated ...

Thanks,
Nilima 

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