Re: [rules-users] Testing for non-existance of an object in list
Sorry, the actual error in my logic was totally unrelated to the
fragment below.
The problem was that the DQAttribute that should have matched below was
inserted by another rule, but the insertion was done at a time when the
checkViolations collection was still emtpy. And I had forgotten the
modify() after filling the checkViolations collection.
So the rule "saw" an empty collection and that last condition did not
trigger. Once I corrected that, things started working :-)
On 08/03/2013 10:59 PM, Joe Ammann wrote:
Here's what I currently have (Drools 5.5.0 btw):
rule "R2030: UpdateDQAttribute"
dialect "mvel"
agenda-group "PROCESS_CHECKRESULTS"
when
pv : PriceViolation ( p : changedPrice.price, dqc : check )
ps : PriceSeries ( id == p.seriesId )
i : Instrument ( id == ps.instrument.id )
dqa : DQAttribute ( rootId == i.id, objectId == p.id )
not dqcv : DQCheckViolation ( check.id == dqc.id ) from
dqa.checkViolations
then
# debug
for (DQCheckViolation dqcv : dqa.checkViolations) {
logger.debug("dqc: {}, dqcv: {}", dqc.id, dqcv.check.id);
}
end
The rule fires and the log statement produces
PriceCheck: dqc: 6fc6636b-9b7c-4302-bce7-1680eec57830, dqcv:
6fc6636b-9b7c-4302-bce7-1680eec57830
The ids are the same, so I would have expected that last LHS condition
to avoid that the rule fires.
--
CU, Joe
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