Hi,
I have been able to solve this. Was
an issue the way I had written my rule.
Thanks.
Regards,
- Nimesh
From: rules-users-bounces@lists.jboss.org
[mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Nimesh Muley
Sent: Monday, November 24, 2008 11:31 AM
To: 'Rules Users List'
Subject: RE: [rules-users] 2 levels of sorting / distribution in Drools
(Date + Proportionate)
Hi,
Oops. A slight typo. The objects in
the RHS were “$tranche” and “$product”. I have modified in the mail below.
Regards,
- Nimesh
From: rules-users-bounces@lists.jboss.org
[mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Nimesh Muley
Sent: Monday, November 24, 2008 11:24 AM
To: 'Rules Users List'
Subject: [rules-users] 2 levels of sorting / distribution in Drools
(Date + Proportionate)
Hi,
I have tried to implement 2 levels (nested) of sorting /
distribution (Date and Proportionate) in Drools and failed :-(. I could not
accomplish when the second level was ‘proportionate’. Let me clear the terms
before I give the example.
2 level --> The criteria chosen for the first level is
same then only apply the second level criteria. In SQL terms it would be “order
by date, avg price”. The first level was Date.
Proportionate --> Proportionate means distribute the
items / amount as proportion to what it contains.
The rule that is mentioned below did not work. There was no
issue in implementing sequence number as second priority.
What happens is that the “$totalTrancheAmount” does not include
the facts (Tranche objects) that were already matched or being matched.
Basically the sum is always of the facts that are ‘yet’ to be matched.
Also what is needed is a fact understanding whether Tranche
got selected as a “proportionate” one or only based on date. For this we can
use if ($totalTrancheAmount > 0) condition on “then” side I suppose.
Is there any way of getting hold of all facts which taking
sum of childTrancheValue?
rule "LIFO And Proportionate"
dialect "java"
salience 101
when
$product : Product($productSeq : productSeq, vestedAmt > 0)
$tranche : Tranche(productSeq == $productSeq, $maintrancheSeq : trancheSeq,
$trancheValue : trancheValue > trancheVestedAmt, $trancheCreationDate :
trancheCreationDt)
not Tranche(claimProductSeq == $claimProductSeq, trancheSeq != $maintrancheSeq,
trancheValue > trancheVestedAmt, trancheCreationDt > $trancheCreationDate
)
and
(
$totalTrancheAmount : Double ()
from accumulate ( Tranche($childtrancheValue : trancheValue, trancheCreationDt
== $trancheCreationDate, trancheValue > trancheVestedAmt), sum(
$childtrancheValue ))
or
eval(true)
)
then
// Vesting should happen based on proportionate if the dates were matched
otherwise based on which amount is greater.
// Proportionate = $trancheValue / $ totalTrancheAmount
vestTranche($product, $tranche);
System.out.println(“$totalTrancheAmount : “ + $ totalTrancheAmount);
update ($tranche);
update ($product);
end
Thanks.
Regards,
- Nimesh
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