[rules-users] Decision table actions

[Hehl, Thomas]

I have at least figured out what was going on with my decision table.

 

I kept comparing what I was doing with the policy pricing example included
with drools and trying to figure out what I was doing different. Because of
the syntax of the rules I was getting back, it occurred to me that the issue
might be that I was never referencing my recipient object as part of the
condition.

 

I added a property to my BooleanAnswer object so it now looks like:

 

public class BooleanAnswer {

      

      private boolean   answer;

      private int index = 2;

      

      

      /**

       * no-arg constructor

       */

      public BooleanAnswer(){

      }

      

 

      /**

       * create your own default answer

       * @param answer the answer to set

       */

      public BooleanAnswer(boolean answer){

            setAnswer(answer);

      }

      

 

      /**

       * @return the answer

       */

      public boolean isTrue() {

            return answer;

      }

      

 

      /**

       * @param answer the answer to set

       */

      public void setAnswer(boolean answer) {

            this.answer = answer;

      }

 

 

      /**

       * @return the index

       */

      public int getIndex() {

            return index;

      }

 

 

      /**

       * @param index the index to set

       */

      public void setIndex(int index) {

            this.index = index;

      }

 

I then modified my Decision table so it looks like:

 


 

 

	

CONDITION

ACTION

	

answer: BooleanAnswer

 

	

index

answer.setAnswer($param);

	

index

Allowed

	

2

TRUE

	
	
	
	
	

TRUE

	
	
	
	
	

 

This built the proper rule and works fine.

 

It appears that drools is not set up to store values in an object that was
not referenced in the condition. Is this true? If so, it seems this should
be a request for future enhancement.

 

If not, then how do I do this without referencing my recipient object in the
condition.

 

Thanks!

 

Thom Hehl
Sr. eJuror Architect

* Office (859) 277-8800 x 144

* Thomas.Hehl at acs-inc.com <mailto:Thomas.Hehl at acs-inc.com>  
ACS, Inc.

Government Solutions

1733 Harrodsburg Road
Lexington, KY 40504-3617

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Thank you.

 

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