6:07 a.m.
Could a solution be as simple as this? Is this approach to consuming
"LCHUS_IRS_CURRENCY_RULE" L-value matching events sound/complete (and
not-vulnerable to any race condition?). Is there any DROOLS EventListener callback API
that would be more appropriate to solve the problem?
E.g. I want to be able to log when each of these 5 L-value predicates either
"MATCHES" or "FAILS TO MATCH" (at the time of the event)
rule "LCHUS_IRS_CURRENCY_RULE" //XLS Item=195
when
IRDCurrencyRuleFact(
productType == "IRS",
currency=="GBP",
upfrontFeePaymentDate < IRDCurrencyRuleFact.terminationDate,
maturity <= 18275,
//unit = days, i.e. 50 Years
notional <= 99,999,999,999.99
//max Notional
)
then
System.out.println("LCHUS");
end
Again the objective is to be able to join a high-resolution logging capability wrt to
which of the specific 5 L-value predicates matched. Instinctively, to this DROOLs newbie,
this approach seems workable but not ideal ....
rule "LCHUS_IRS_CURRENCY_RULE_LVALUE_MATCHING_EVENT_1"
when
IRDCurrencyRuleFact(productType == "IRS")
then
System.out.println("LCHUS_IRS_CURRENCY_RULE_L-value event 1
match"); //log event L-value predicate 1 matched
end
rule "LCHUS_IRS_CURRENCY_RULE_LVALUE_MATCHING_EVENT_2"
when
IRDCurrencyRuleFact(currency=="GBP")
then
System.out.println("LCHUS_IRS_CURRENCY_RULE_L-value event 2
match"); //log event L-value predicate 2 matched
end
rule "LCHUS_IRS_CURRENCY_RULE_LVALUE_MATCHING_EVENT_3"
when
IRDCurrencyRuleFact(upfrontFeePaymentDate <
IRDCurrencyRuleFact.terminationDate)
then
System.out.println("LCHUS_IRS_CURRENCY_RULE_L-value event 3
match"); //log event L-value predicate 3 matched
end
rule "LCHUS_IRS_CURRENCY_RULE_LVALUE_MATCHING_EVENT_4"
when
IRDCurrencyRuleFact(maturity <= 18275)
then
System.out.println("LCHUS_IRS_CURRENCY_RULE_L-value event 4
match"); //log event L-value predicate 4 matched
end
rule "LCHUS_IRS_CURRENCY_RULE_LVALUE_MATCHING_EVENT_5"
when
IRDCurrencyRuleFact(notional <= 99,999,999,999.99)
then
System.out.println("LCHUS_IRS_CURRENCY_RULE_L-value event 5
match"); //log event L-value predicate 5 matched
end
Ben D Cotton III
Morgan Stanley & Co.
OTC Derivatives Clearing Technology
1221 AOTA Rockefeller Ctr - Flr 27
New York, NY 10020
(212)762.9094
ben.cotton@ms.com<mailto:ben.cotton@ms.com>
From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On
Behalf Of Cotton, Ben (ISGT)
Sent: Saturday, November 03, 2012 8:24 AM
To: rules-users(a)lists.jboss.org
Cc: O'Brien, Patrick (ISGT)
Subject: [rules-users] DROOLs callback API for L-value predicate matching events
Hi, Can someone please point me to compelling examples/sample code of how to use a
DROOLs callback API for very high-resolution logging of L-value predicate matching
events?
E.g. I want to be able to log when each of these 5 L-value predicates either
"MATCHES" or "FAILS TO MATCH" (at the time of the event)
rule "LCHUS_IRS_CURRENCY_RULE" //XLS Item=195
when
IRDCurrencyRuleFact(
productType == "IRS",
currency=="GBP",
upfrontFeePaymentDate < IRDCurrencyRuleFact.terminationDate,
maturity <= 18275,
//unit = days, i.e. 50 Years
notional <= 99,999,999,999.99
//max Notional
)
then
System.out.println("LCHUS");
end
Ben D Cotton III
Morgan Stanley & Co.
OTC Derivatives Clearing Technology
1221 AOTA Rockefeller Ctr - Flr 27
New York, NY 10020
(212)762.9094
ben.cotton@ms.com<mailto:ben.cotton@ms.com>
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________________________________
NOTICE: Morgan Stanley is not acting as a municipal advisor and the opinions or views
contained herein are not intended to be, and do not constitute, advice within the meaning
of Section 975 of the Dodd-Frank Wall Street Reform and Consumer Protection Act. If you
have received this communication in error, please destroy all electronic and paper copies
and notify the sender immediately. Mistransmission is not intended to waive
confidentiality or privilege. Morgan Stanley reserves the right, to the extent permitted
under applicable law, to monitor electronic communications. This message is subject to
terms available at the following link: http://www.morganstanley.com/disclaimers If you
cannot access these links, please notify us by reply message and we will send the contents
to you. By messaging with Morgan Stanley you consent to the foregoing.