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Wednesday, January 27, 2010 10:29 PM

Samples and Slides from Alt.Net Meet up on the Reactive Extensions

The code samples and PowerPoint deck from my presentation on the RX to the New York ALT.NET group are available (and updated) on MSDN Code samples: http://code.msdn.microsoft.com/RxDemos And the slide deck
Posted by Scott Weinstein | 2 comment(s)
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Thursday, January 21, 2010 10:47 PM

Converting a polling based API into a streaming API with the Reactive Extensions

Recently my building has been having issues with its boilers, and the heat has been going out for longer than is comfortable. The superintendent that makes a habit of periodically checking on the status of each of the boilers. A workable approach certainly...
Posted by Scott Weinstein | 4 comment(s)
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Saturday, January 02, 2010 8:28 PM

Streaming OLAP with the Reactive Extensions (RX) for .Net

Streaming OLAP is something that comes up over and over again in the “CEP space” – using the Reactive Extensions for .Net this demo shows the basics; filtering, grouping, aggregates, and concurrent queries. To set the context, the idea here is focus on...
Posted by Scott Weinstein | 8 comment(s)
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Sunday, November 29, 2009 11:01 PM

CEP Style Sliding windows in the RX – Take 2

The bug I mentioned in my first attempt at a sliding window was the minor issue that the aggegates never went down to 0, even if the window had emptied out. The problem line of code was cur.GroupBy(tsst => tsst.Value.Symbol) – if the window is empty...
Posted by Scott Weinstein | 6 comment(s)
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Tuesday, November 17, 2009 11:23 PM

Reactive Framework available from DevLabs

Downloads of the Reactive Framework (RX) can now be found at MS DevLabs . Versions for 3.5 SP1, 4.0 Beta, and Silverlight 3 are available. Interestingly, the API size appears to be substantially larger than the preview which was leaked as part of the...
Posted by Scott Weinstein | 1 comment(s)
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Tuesday, August 25, 2009 1:01 AM

From the ReactiveFramework to StreamInsight and Back

In my last post I showed how to send StreamInsight output streams to a UI via the ReactiveFramework . Here’s we’ll do the reverse, by sending an RX stream into a CEP stream. Instead of a partial example, I’ll use an end to end example showing simulated...
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Sunday, August 23, 2009 5:01 PM

Routing StreamInsight output streams to a UI

One compelling feature of StreamInsight is it’s in-process hosting model. In addition to reducing the complexity of server side installs, it’s now possible to have a  CEP engine in the client UI. The simplest way of getting CEP streams onto the UI...
Posted by Scott Weinstein | 4 comment(s)
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Wednesday, August 12, 2009 12:15 AM

Exploring the Reactive Framework part II

Talk around the water cooler is that it might be possible to use the Reactive Framework for some lightweight CEP. I’ll correct some of the (big) mistakes from my last post and build up a “jumping” window extension method for IObservable s.   In my...
Posted by Scott Weinstein | 3 comment(s)
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Thursday, July 23, 2009 5:49 PM

Preview of the Reactive Framework available via Silverlight Toolkit

Via Jafar Husain - it appears that there’s a early release of the Live Labs Reactive Framework (& with Brian Beckman and Erik Meijer ) in the latest Silverlight Toolkit   In addition to some of the standard LINQ operators ( Select, Where, Aggregate...
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Monday, May 04, 2009 1:13 PM

Some interesting sessions at the Microsoft Enterprise Developer and Solutions Conference

  There are some interesting sessions at the 2009 EntDevCon .   Three of particular interest to me are are 1. “Coral8 Engine Integrated with Microsoft Windows HPC Server 2008”  at 11 on Tuesday. I had a chance to see some of the early bits...
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