Re: [rules-users] Questions concerning Java and rules / Flexibility

Hi, 1) You write a java program, rules / actions are hard coded inline or saved in text files / excel sheets / XML files etc. After importing the necessary drools classes you call the drools interface routines, with the following functionalities: load rules, providing working memory, adding facts und finally starting the rule engine (e.g. firing rules). Just some corrections here. The steps would be: load rules, get a working memory (kbase), create a session from the working memory, insert facts to it (this will start the pattern matching algorithm), fire the action part of the rules that matches the inserted Facts. 2) You use the capabilities of the Drools GUI tools (such as Guvnor), which allows entering rules, objects and actions via GUI tools. Here, I don't get the point whether a part of the java code is generated automatically, or whether you have to write your java classes by yourself, as presented in possibility 1 (above), but without coding the rules by yourself in the source code / external input files. Guvnor is just used as a centralized place to create (if you want to), maintain and distribute your rules. You have different editor for different representations, like DRL, BRL (using a Guided Editor), Decision Table, DSL, etc. Guvnor then exposes these assets (their source code or binary representation) through different URLs. So, your application should read the rules (in the first step of the previous section) from Guvnor using HTTP (or even webdav) to create the working memory. Hope this helps to clarify a little bit your thoughts. Best Regards, XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Thu, Feb 3, 2011 at 2:26 PM, Martin Richardsen <jaichwill(a)gmail.com&gt;wrote: