I don’t know much about how to use it, but to install it as an eclipse plugin, this should work: Start Eclipse Help -> Install New Software In the Work With: or Site: input field, enter: “**http://download.jboss.org/drools/release/`<VERSION>.Final/org.drools.updatesite/**”, replace “`” with appropriate version and click the “Add” button For the Name you can just enter “Drools” … Read more
Fanatics of all stripes should be questioned, no matter what topic they rave about. Data-driven decision tables are a perfectly good way to implement complex behavior. On the day it doesn’t scale or perform to your requirements, perhaps you’ll want to consider something else. I wouldn’t want to make a technology swap in working production … Read more
What joekutner said + a recent 1hr Fosdem “introduction” video. Despite the comments, it’s actually really good, but what you have to have is the slides, so that you can follow through in a sane fashion. Here is a link to the Youtube-Video. It is fast, you’ll have to pause, but I found that I … Read more
Backward chaining (a la Prolog) is more like finding what initial conditions form a path to your goal. At a very basic level it is a backward search from your goal to find conditions that will fulfil it. Backward chaining is used for interrogative applications (finding items that fulfil certain criteria) – one commercial example … Read more
What are the pros and cons to adopting the Java rules engines JESS and Drools? Use a rule engine if you need to separate the business rules from the application logic. The Does Your Project Need a Rule Engine article has a good example: For example, a typical storefront system might involve code to calculate … Read more