Better still why don't you say why you think it's different. Remember 'or' results in two rules being generate, so write out those two rules separately and it might help you understand. The second one is just standard logic. And don't forget you'll get standard cross products here, i.e. A x B and B x A.

Mark
Jai Vasanth wrote:

Here is the actual reason why I wanted to know the difference between those 2.

rule "Remove smaller or non-overriden"
    dialect "java"
    when
        L : Response( $r : value && status != "override" )
        (Response( value > $r ) or Response( status == "override"))
    then
        retract( L );
end

The above rule performs what I intended. It retains the Response with the largest value or it the one that has an override status (if one exists)

But I am getting a different behaviour for this one

rule "Remove smaller or non-overriden"
    dialect "java"
    when
        L : Response( $r : value && status != "override" )
        Response( value > $r || status == "override" )
    then
        retract( L );
end

This rule seems to retain both the objects, the overriden and the largest value

Could you explain to me how they are diffrent.

Thanks

Jai
On Feb 6, 2008 4:30 PM, Mark Proctor <mproctor@codehaus.org> wrote:
One is a field constraint disjointed connected the other is a Conditional Element 'or'. Details of both are covered in the manual. Suffice to say the first is like writting if ( stmt1.attrib1 == "X" || smt1.attrib1 == "Y" ) whil the ohte results in two separate rules, one checking "X" and the other checking "Y", both rules can match and fire.

Mark

Jai Vasanth wrote:
Hi,

What is the difference between the following 2 statements

stmt1 : FactA( attrib1 == "X" || attrib1 =="Y")

stmt2: FactA( attrib1 =="X") or FactA(attrib1 =="Y")

Thanks

Jai
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