Drool 示例.docx

Drool .Net SamplesIntroductionThis Article discusses using the Drools.NET project in a Visual Studio 2008 Forms application. It goes through the steps to use the project files, as well as a brief discussion of the Drools Rule Syntax. BackgroundThere are lots of articles on the web explaining why applications should have the business logic separated from the application logic. During my time with Blaze Software, Neuron Data, and Inference Corporation, I must have given that presentation a thousand times. I am not going to go into all of that here.Instead, I will attempt to show what can be done with a Business Rules System -- even if you don’t have the six figure budgets necessary to implement a solution using one of the commercial Rules Management systems, (such as Fair Isaac’s Blaze Advisor or Ilog’s JRules -- or whatever it will be called now they have been bought by IBM.) JBOSS Rules and DROOLS.NETAn open source alternative to the commercial business rules engines is DROOLS -- re-branded now as JBOSS rules. It has recently given its internal algorithm a speed boost, and it has announced that it will support the legacy syntax used by Inference’s ART, and NASA’s CLIPS project. (as well as several other rules syntaxes.) Honestly, I was never overly fond of the ART syntax – which was too LISP-like for my tastes. However, there is no arguing that it was a very successful language, and there are a lot of examples and applications still available today for it. The main thing is that with DROOLS, you have several syntaxes to choose from, which is always a good thing.So, learning JBOSS Rules opens the doors to new techniques and architectures, but where to start? Well, if C# and .NET is your cup of tea, you might want to have a look at DROOLS.NET.Before We Start...You can find the project page here://Just don’t go there looking for documentation on how to use it if you are just getting started! It’s not available. Oh, they have a “Getting Started in Drools.NET” guide – bu