Information needed on JESS

[Arathi Ramesh]

Hi,

I am evaluating some rules engine to embedd within the existing project. I am looking at JESS but could not understand how it works. I am looking at a core Rule engine with an API that i can be included within the project class path and build a GUI with the look and feel similar to my project to define Rules. JESS is one engine that i am looking at, but could not understand how to go about using it, can anyone please guide me?

thanks
Arathi

[Ernest Friedman-Hill]

Hi,

Welcome to JavaRanch!

Embedding Jess in an application can be as simple as (with Jess 7)

import jess.*;
...
Rete engine = new Rete();
engine.batch("myrules.clp");

"myrules.clp" is a text file containing rules in the Jess rule language. These rules can call Java methods and otherwise work with the Java code in your application.

The Rete class -- and the other classes in the jess package -- have a rich API for integrating with Java code. The manual shows a number of examples and describes the Jess rule language. For more in-depth examples, see the book linked in my signature.

P.S. Please don't post the same topic to multiple forums; I deleted the other copy of this thread from "Game Development." Furthermore, questions about products like Jess really belong in our Other Java Products and Servers forum; I'll move this there for you where we can continue this conversation.