[rules-users] issues with 'contains' and 'and'

[Edson Tirelli]

   You must add the constraint to the same Pattern and not an additional 
pattern. In your case this will also prevent the loop.
   Example:

rule "CompDept Product Qualification Rule" 
  salience 7
  no-loop true; 

  when     
  $cust:( Customer( productIDs contains "Computer", compDeptState == Customer.NOTRUN )      
    or Customer(productIDs contains "monitor", compDeptState == Customer.NOTRUN )) 
  then
   $cust.setCompDeptState (Customer.DONE);
   System.out.println("getStatus after...." + $cust.getCompDeptState ()  );
   $cust.addQualifiedProduct("CompDeptProduct");
   System.out.println("CompDeptProduct qualified...."  );
   modify($cust);    
end


    []s
    Edson

Amarendra Mishra wrote:

>Hi,
>
>I am trying to write a protoype with JBoss Rules 3.0.5
>I am having problem in getting the following working properly :
>
>rule "CompDept Product Qualification Rule" 
>  salience 7
>  no-loop true; 
>
>  when     
>  $cust:( Customer( productIDs contains "Computer")      
>    or Customer(productIDs contains "monitor")) 
>    #  Customer(compDeptState == Customer.NOTRUN)    <-------- Commented line
>  then
>   $cust.setCompDeptState (Customer.DONE);
>   System.out.println("getStatus after...." + $cust.getCompDeptState ()  );
>   $cust.addQualifiedProduct("CompDeptProduct");
>   System.out.println("CompDeptProduct qualified...."  );
>   modify($cust);    
>end
>
>where productIDs are defined as Vector in Customer class.
>If I run the above rule it goes in recursive mode (I have another rule in the drl that also acts on the same customer object and modifies it). 
>If I uncomment the commented line my LHS it's not evaluating to true and RHS is not running.
>
>Any help would be appreciated.
>
>Kind Regards,
>Amarendra.
>
>
> 
>____________________________________________________________________________________
>Bored stiff? Loosen up... 
>Download and play hundreds of games for free on Yahoo! Games.
>http://games.yahoo.com/games/front
>
>_______________________________________________
>rules-users mailing list
>rules-users at lists.jboss.org
>https://lists.jboss.org/mailman/listinfo/rules-users
>
>  
>


-- 
 Edson Tirelli
 Software Engineer - JBoss Rules Core Developer
 Office: +55 11 3124-6000
 Mobile: +55 11 9218-4151
 JBoss, a division of Red Hat @ www.jboss.com