The Esper team is proud to annouce release 0.9.5 - now available for download. Esper is a free, open-source ESP/CEP engine written 100% Java and designed to be...
Hi, I am trying to create an application similar to the RegNMS. In my application, i have to compare the price of a particular symbol from the trade book with...
In most systems we have the concept of "window". The window retains some rows based on a policy. What kind of policies these are and how they are expressed...
I'm not exactly sure if I understand exactly what you are trying to do from your description below- but our product (Director) has an intermediate data layer...
As with the others that responded, the Aleri Streaming Platform can be set to retain a "window" of history on a stream. Actually, it can go beyond history and...
Vinodh and others, In response to the question, "will other engines handle your requirements?" for Reg. NMS, the answer is "yes." Here at StreamBase, we are...
http://groups.yahoo.com/group/CEP-Interest/ says If you're new, please sign in and send a message to the group introducing yourself. My name is Don Cohen. Is...
I am writing to inform you all about the StreamBase complex event processing developer contest and invite you to participate. Two lucky contestants have ...
Do SPEs support updates and deletes? To Illustrate with an example Let us assume we are keeping track of sales and would like to know when sales for a region...
While I can't speak for other SPEs, the Aleri Streaming Platform supports this. Incoming messages (tuples) can be processed as inserts, updates, deletes, or...
Coral8 provides both insert into a window as well as delete. An example delete looks like: ON astream WHEN astream.code = 'destroy' DELETE FROM AWindow WHERE...
Thanks Bob for pointer. I will go through the docs. -Satya. ... From: Bob Hagmann <bob@...> To: CEP-Interest@yahoogroups.com Sent: Wednesday, July 26,...
I will be out of the office starting 25/07/2006 and will not return until 30/07/2006. I shall be out of the office until Sunday, will have access to Email...
... Others seem to be answering the question for their products, so maybe I should act as the representative for triggerware and say yes, in the same literal...
Thanks Don for your response. In your example of Salesman of the year, let us say because a component malfunctioned and inserted a lot of sales rows which were...
... The issue is what are the corrective actions. Do you think you can answer that question in a general domain independent way? I don't. If you were capable...
The Esper development team is proud to announce the release of Esper 1.0 final. Esper is an open-source event stream processing and event correlation engine...
Hi All, I happened to read an article about "Operational intelligence" being put up as a new technology to enter the market. Pls see the following link ...
Actually Operational Intelligence is just another application for Stream engines just like let us say IT monitoring or RFID. As with every application there...
There needs to be adapters which talk to the BPEL engines and convert them into a format known to SPE. BTW I noticed that the article talked about not in...
Hi Satya, You are brining up a very interesting point about "not in" queries, and generally about events that do NOT happen in a given time interval. Unless...
Hi Mark, This makes a lot of sense. Also in response to previous mail. I got confused on Operational BI versus operation Intelligence. I would love to hear...
You are right, there is a lot of confusion around terminology. Different vendors and analysts use different terms, but I'd rather not start a terminology ...
The term "operational intelligence" implies ability to use data in operational databases, but it does not imply ability to handle data streams nor the ability...
I will be out of the office starting 03/08/2006 and will not return until 21/08/2006. I am in a family vacation in Norway, have no communication during this ...
... I think you are arguing that these patterns are difficult to express in SQL. This is an interesting claim. Do you think these are difficult to express in...
Seth, The terms "Operational Business Intelligence" and "Operational Intelligence" and "Business Intelligence" are sometimes used by different vendors to mean...
If you or other marketers want to find a sexier term than CEP/ESP for that technology, Operational Intelligence is a poor choice because that term is so...
Seth, You jump to two conclusions - both wrong. The first is that I'm acting in the role of a marketer looking for a "sexier term" than CEP/ESP - I'm not....
In the open-source Esper engine we offer the capability to specify inner and outer joins between multiple streams, and also the capability to specify complex...
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