Re: [rules-users] Comparing multiple accumulations
You'll have to provide one full set of $acc.transaction values
(indicating class and relevant field values) where you think the rule
should fire, but doesnt, for people to be able to check what's going
on.
Also, it is necessary to know how the types of Account.transactions
(List<???>), Transaction and RentTransaction are related.
-W
On 7/14/09, Richard Sherman <rsherman315(a)hotmail.com> wrote:
First I'm new to drools and secondly where I'm working
we're using version
4.0.7.
I have a list of accounts and each account contains a list of transactions.
I wish to accumulate charge transactions and compare them to an accumulation
of payment transactions for a given time period (such as the last month).
And it gets slightly more awkward in that if a payment transaction is of a
certain type it needs to be converted from a 4 weekly figure to a monthly
figure ( using / 4 / 7 * 365 / 12). I've tried to use structures as follows
but they are causing the then part of the rule never to fire.
rule "Account in arrears"
salience 10
no-loop
when
$acc : Account( // balance between £500 and £1000
accountBalanceInPence >= 50000 &&
accountBalanceInPence <= 100000
)
$s : MessageInfo( accountNumber == $acc.accountNumber )
Number($charges : intValue) from
accumulate(
(Transaction(
transactionDate > oneMonthAgo &&
amountInPence > 0 &&
$value : amountInPence)
from $acc.transactions),
sum($value)
)
Number($adjustment : intValue) from
accumulate(
(Transaction(
transactionDate > oneMonthAgo &&
amountInPence < 0 &&
transactionCode == "Type 1" &&
$value : amountInPence)
from $acc.transactions),
sum(($value / 4 / 7 * 365 / 12) - $value)
)
Number( intValue > ($charges + $adjustment)) from
accumulate(
(RentTransaction
(transactionDate > oneMonthAgo
$value : amountInPence)
from $acc.transactions),
sum($value)
)
then
$s.setMessage( "Account in arrears" );
update($s); // flag update
end
Thanks
Richard
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