This worked as well.  Thanks again for the good advice!

Robert Costello

Lead Systems Engineer

IMA Performance

E3- 279A

847.286.0910

-----Original Message-----
From: rules-users-bounces@lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Steven Williams
Sent: Monday, January 12, 2009 6:26 PM
To: Rules Users List
Subject: Re: [rules-users] How to access data after rule fires

If you put an X or something in the cell (i.e. just don't leave it empty) it should also work.

On Tue, Jan 13, 2009 at 10:57 AM, Edson Tirelli <tirelli@post.com> wrote:

     The action is not being executed. I don't use decision tables frequently, but I think that it ignores empty cells and is generating an empty consequence for your rule. Usually, you would place the method call on the header prototype and the parameter in the cell. So your cell would be:

| hoover | true |
| xyz | false |

     The method prototype would be something like (please check the correct syntax in the manual):

brand.setGoodBrand( $param );

     Where the engine would replace $param by the value you write in the cell.

     []s
     Edson

2009/1/12 Costello, Robert <rcost10@searshc.com>

I tried that and it returned false, which doesn't make sense to me since the rule firing is to set the value to true, and in the execution the rule does fire.  

        StatefulKnowledgeSession session = kbase.newStatefulKnowledgeSession();

        Product p = new Product();

        p.setBrand("hoover");

session.insert( p );

int u = session.fireAllRules();

        System.out.println(u + " many rules fired");

        System.out.println("is brand good? " + p.isGoodBrand());

Here's a snippet of the rule (decision table)

	CONDITION	ACTION
	Product
	brand	setGoodBrand(true);
Cases	hoover match case
Brand Check	hoover

And the console returns:

1 many rules fired

is brand good? false

Robert Costello

Lead Systems Engineer

IMA Performance

E3- 279A

847.286.0910

-----Original Message-----
From: rules-users-bounces@lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Edson Tirelli
Sent: Monday, January 12, 2009 4:16 PM
To: Rules Users List
Subject: Re: [rules-users] How to access data after rule fires

   Can't you keep the reference to your object while firing the rules?

MyObject x = ...
ksession.insert( x );
ksession.fireAllRules();
boolean result = x.getBooleanAttribute();

    []s
    Edson

2009/1/12 Costello, Robert <rcost10@searshc.com>

So, how do I access data after the rules fire?

If one has a rule which modifies a field on an object (a boolean, for
example), and you want to return the object after the rules are
complete, how do you do it?

I tried this using a StatefulKnowledgeSession, getting an object
collection after the rules fire, but I don't see that this works.

Also googled the heck out of this and looked in all the documentation.
I must be missing something, because the docs generally are pretty good.


Any hints?

Thanks in advance,

Robert Costello


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 Edson Tirelli
 JBoss Drools Core Development
 JBoss, a division of Red Hat @ www.jboss.com

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--
 Edson Tirelli
 JBoss Drools Core Development
 JBoss, a division of Red Hat @ www.jboss.com

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Steven Williams

Supervising Consultant

Object Consulting
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steven.williams@objectconsulting.com.au
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