[rules-users] Modifying in built rule in new formatt

[Michael Anstis]

Why not put the parameters into a "container" Fact in WM?

rule "bundle A - included units"
       dialect "mvel"
       when
               Parameters($p1 : param1, $p2 : param2, $p3 : param3)
               $order : OrderDTO( )
               $line : OrderLineDTO( itemId == $p1, $quantity : quantity )
from
$order.lines
               SubscriptionResult( userId == $order.userId, itemId == $p2,
subscribed
== true )
               $pricing : PricingResult(userId == $order.userId, itemId ==
$p3)
       then
               $order.getLines().remove($
>
> line);
>                OrderLineBL.addItem($order, $p3, new
> Integer($quantity.intValue()),
> $pricing.getPrice());update($order);
> end
>
You could load the "Parameter" objects either with a lower salience rule or
from Java; both from a database.

The issues with Guvnor sound like a bug to me and I request you raise a JIRA
for investigation.

Thanks,

Mike


On 27 December 2010 12:27, wasim.khan318 <khanwasim07 at yahoo.co.in> wrote:

>
> It is  a Test Code , and  i  am very new to java and drools
>  i have a inbuilt
> rule "bundle A - included units"
>        dialect "mvel"
>        when
>                $order : OrderDTO( )
>                $line : OrderLineDTO( itemId == 16, $quantity : quantity )
> from
> $order.lines
>                SubscriptionResult( userId == $order.userId, itemId == 12,
> subscribed ==
> true )
>                $pricing : PricingResult(userId == $order.userId, itemId ==
> 13)
>        then
>                $order.getLines().remove($line);
>                OrderLineBL.addItem($order, 13, new
> Integer($quantity.intValue()),
> $pricing.getPrice());update($order);
> end
>
> i want  to modify this rule like
>
> rule "bundle A - included units"
>        dialect "mvel"
>        when
>                $order : OrderDTO( )
>                $line : OrderLineDTO( itemId == param1, $quantity : quantity
> ) from
> $order.lines
>                SubscriptionResult( userId == $order.userId, itemId ==
> param2, subscribed
> == true )
>                $pricing : PricingResult(userId == $order.userId, itemId ==
> param3)
>        then
>                $order.getLines().remove($line);
>                OrderLineBL.addItem($order, param3, new
> Integer($quantity.intValue()),
> $pricing.getPrice());update($order);
> end
> 1.i want to replace hardcoded value to params as ItemId16 to param1
> ,Itemid12 to param2 so when any one see my rule can not guess about
> hardcoded value. and i want that the values of param1,param2 some how come
> from database
> 2.Till now what i did from my reading and exploring is
> i have created java functions in jboss which returns value like
> GetParam1(some var),GetParam2(some var),GetParam3()
> i tested them in jboss drools application they are working fine
> 3. then i build package and  upload in guvnor
> 4.while writing technical ander Fact field i am getting only GetParam3()
> not
> GetParam1(some var) and
> GetParam2(some var)
> 5. I dont know why . when i remove parameter value say make GetParam1() ,
> without parameter it comes under class field.
> 6. please tell me is it right approach and if right then how i handle
> GetParam1(some var) ,because they return param1 value which passed in
> modified rule
>
> --
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