- From: Gary Hallmark <gary.hallmark@oracle.com>
- Date: Wed, 03 Sep 2008 15:55:03 -0700
- To: Alex Kozlenkov <alex.kozlenkov@betfair.com>
- CC: public-rif-wg@w3.org
With PRD you have negation so if you "remember" (using a predicate, e.g.) which events you processed, you can suppress similar events. Alex Kozlenkov wrote: > Gary, > > By two identical facts I mean facts that are identical up to OID. This > is especially interesting in the context of CEP extensions that > interpret incoming events as new facts. What I was trying to say is that > normally, there is no control at all over how such facts satisfy the > rules. Such situation may arise, for example, when there are event > duplicates. > > -----Original Message----- > From: Gary Hallmark [mailto:gary.hallmark@oracle.com] > Sent: 03 September 2008 18:31 > To: Alex Kozlenkov > Cc: public-rif-wg@w3.org > Subject: Re: Congratulations on Christian's and co. courage > > no such thing as 2 identical facts. Relations are sets. Frames have a > unique OID. > Note that PRD currently has no way to create a new object, and that is a > > problem we need to fix. > > Alex Kozlenkov wrote: > >> And one more comment about the minimality I'm discussing in my >> > previous > >> post. This is not an idle question. If there exist two identical >> > facts, > >> will there be two actions executed or only one? In the language >> > dialect > >> for event processing that the JBoss guys are developing, I was trying >> > to > >> understand whether A<=B,C given B and C matching incoming events, if C >> was detected twice, would the action A be executed twice? What I mean >> > is > >> that there may be situation when we want to only detect one situation >> > so > >> that the sequence of events CCB should execute A only once. >> >> >> >> > ________________________________________________________________________ > >> In order to protect our email recipients, Betfair Group use SkyScan >> > from > >> MessageLabs to scan all Incoming and Outgoing mail for viruses. >> >> >> > ________________________________________________________________________ > >> >> > > ________________________________________________________________________ > In order to protect our email recipients, Betfair Group use SkyScan from > MessageLabs to scan all Incoming and Outgoing mail for viruses. > > ________________________________________________________________________ > >
Received on Wednesday, 3 September 2008 22:56:33 UTC