List/Collection on the RHS - DSL or Decision Table possible?

[Doesnt Matter]

Hi all,

I am new to drools and evaluating a switch from JRules/ODM to it. For the following situation I was not able to find a solution yet: We need to have multiple values on the rhs of a rule. Example for that:

POJO for LHS

public class Company {

    private int id;
    // getters, setters, ...
}

POJO for RHS

public class SelectionCriteria {

    List<Manufacturer> allowedManufacturer;
    //getters, setters, ...
}

now a business user should be able to design a rule that company 1 is allowed to use manufacturer X,Y,Z while company 2 can only continue with manufacturer D.
For a hard coded rule this could work like that:

sc:SelectionCriteria;
when c:Company(id == "1")
 then sc.setAllowedManufacturer.addAll(java.util.Arrays.asList("X","Y","Z"));

But I cannot hand over this way to the business department.
My question now is: Is there any DSL that covers specifying lists for the rhs? Or even better: Can I use this somewho in a guided decision table in the workbench? XLS decision tables are unfortunately not an option for us.
Or did I misunderstood something completely?

Thanks in advance for any hint.

Florian

[Jonathan MERCIER]

Hi,

I do not know If I well understood, but it seem you try to link a company to a manufacturer by using company's id and manufacturer's name.

My snippet code:

public enum Relation {
    ADD,
    REMOVE
}

public interface CompanyManufacturerRelation {
    String getCompanyId();
    String getManufacturerName();
    Relation getRelation();
}

public class CompanyManufacturerRelationImpl implements  CompanyManufacturerRelation {
    private final String id;
    private final String name;
    private final Relation relation;

    public CompanyManufacturerRelationImpl( final String id, final String name, Relation relation ){
        this.id = id;
        this.name = rame;
        this.relation = relation;
    }

    String getCompanyId(){
        return id;
    }

    String getManufacturerName(){
        return name;
    }

    String getRelation(){
        return relation;
    }
}

dialect "mvel"

rule "Add relation between company and manufacturer"
when  
    $c: Company()
    $cmr: CompanyManufacturerRelation( $c.id:= id, relation == Relation.ADD )
then
    sc.setAllowedManufacturer.add( $c )
end

rule "Remove relation between company and manufacturer"
when  
    $c: Company()
    $cmr: CompanyManufacturerRelation( $c.id:= id, relation == Relation.REMOVE )
then
    sc.setAllowedManufacturer.remove( $c )
end