[rules-users] Pattern matching

[Jai Vasanth]

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 at 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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