[jboss-jira] [JBoss JIRA] Created: (JBRULES-756) Allow predicates and return values to use implicit bindings

[Edson Tirelli (JIRA)]

Allow predicates and return values to use implicit bindings
-----------------------------------------------------------

                 Key: JBRULES-756
                 URL: http://jira.jboss.com/jira/browse/JBRULES-756
             Project: JBoss Rules
          Issue Type: Feature Request
      Security Level: Public (Everyone can see)
          Components: Drl Parser/Builder, Reteoo
    Affects Versions: 3.1-m1
            Reporter: Edson Tirelli
         Assigned To: Edson Tirelli
             Fix For: 3.1-m2


Allow for use of implicit declared/bound variables inside predicates and return value expressions. Ex:

package org.drools;

global java.util.List results;

global java.lang.Double factor;

rule "test implicit declarations"
	when
 	    // implicit binding
		Cheese( type == "stilton", ( price < 20*factor ) ) 
		// late declaration
		Cheese( price < ( price * factor ), ( price < price * factor ), price : price  ) 
	then
		results.add( "Rule Fired" );
end

The "price" variable is implicit declared and bound to the "price" field to be used inside the predicates and return values. It also allows for late bindings.


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