Also, if I understand correctly what you are trying to do, you should probably add a variable name to the PersonDetails fact and use that in the "then" part to assign the discount. See attached.
-----Original Message-----
From: rules-users-bounces@lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Sumeet Karawal
Sent: Wednesday, May 18, 2011 11:47 AM
To: Rules Users List
Subject: Re: [rules-users] Facing Problem in BRL
This is the brl that I have created:
(Embedded image moved to file: pic18001.jpg)
Regards,
Sumeet Karawal
Mailto: sumeet.karawal@tcs.com
From: "Abhay B. Chaware" <Abhay.Chaware@kpitcummins.com>
To: Rules Users List <rules-users@lists.jboss.org>
Date: 05/18/2011 11:42 AM
Subject: Re: [rules-users] Facing Problem in BRL
Sent by: rules-users-bounces@lists.jboss.org
Could you post your rule content here ?
-----Original Message-----
From: rules-users-bounces@lists.jboss.org [
mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Sumeet Karawal
Sent: Wednesday, May 18, 2011 11:38 AM
To: rules-users@lists.jboss.org
Subject: [rules-users] Facing Problem in BRL
Hi,
I am using Drools-Expert. I am having a class "Person" with data members as
age and discount.
I am trying to create a .brl. I have these statements in drools.package
package com.rules;
import com.model.PersonDetails;
and in the example.brl I am providing the details of when and then
conditions
but on execution I am getting the following error :
java.lang.RuntimeException: [4] Unable to expand: PersonDetails( age <
"20" )[6] Unable to expand: PersonDetails fact0 = new
PersonDetails
();[7] Unable to expand: fact0.setDiscount
( 10 );[8] Unable to
expand: insert(fact0 );
It would be helpful is somebody guide me on how execute it.
Also, I am creating the knowledgebase as:
private static KnowledgeBase createKnowledgeBase() {
KnowledgeBuilder builder = KnowledgeBuilderFactory.newKnowledgeBuilder();
builder.add (ResourceFactory.newClassPathResource(
"com/rules/example.brl"),ResourceType.BRL);
if (builder.hasErrors()) {
throw new RuntimeException (builder.getErrors().toString ());
}
KnowledgeBase knowledgeBase = KnowledgeBaseFactory.newKnowledgeBase();
knowledgeBase.addKnowledgePackages(builder.getKnowledgePackages ());
return knowledgeBase;}
Thanks & Regards,
Sumeet Karawal
CEG - Open Source Technology Group
Tata Consultancy Services
Ph:- +912267782556
Cell:- +919833236440
Mailto: sumeet.karawal@tcs.com
Website: http://www.tcs.com
____________________________________________
Experience certainty. IT Services
Business Solutions
Outsourcing
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