I have confirmed this problem. The same thing happens for exists (The following exists) and () (Any of the following are true). Could you please create a jira issue for this? 

p.s.: Please try to wait at least a week before re-post a question :)

Best Regards,

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Esteban Aliverti
- Developer @ http://www.plugtree.com
- Blog @ http://ilesteban.wordpress.com

2011/1/17 Harshit Bapna <hrbapna@gmail.com>

Hello All,

 

From the Expert documentation, I am trying to create the rule(below) in Guvnor

Guvnor Version : 5.1.1

 

I am not able to achieve the combination of NOT & FROM in a business rule.

Is it possible to create the below drl rule into a brl rule in Guvnor?

 

------------------------------------------------------------------------------------

package org.drools;

rule "Avoid NPE on wrong syntax"
   when
     not( Cheese( ( type == "stilton" && price == 10 ) || ( type == "brie" && price == 15 ) ) from $cheeseList )
   then
     System.out.println("OK");
end

------------------------------------------------------------------------------------

 

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