rule-engine

I'm using the drools 6 engine. Suppose I have an account object that has a collection of sections and each section has a status flag that can be "GOOD" or "BAD". If I was to write the following: rule "Check if account has a good subsection" when $account : Account() SubSection (status == "GOOD") from $account.getSubSections() then insertLogical(new AccountIsGood($account)); end I would expect this to simply add the logical rule AccountIsGood($account) if atleast one section was good. However, it seems this does not simply check for one successful subsection and end the rule, but instead it

I am working in a young banking company. Our solution (.NET) has an important technical debt, so we refactor it following DDD principles. We are planning to use (a) Business Rules Engine(s). Business rules deal with accounting purposes, marketing purposes, risk purposes, legal stuff... we are planning to POC the BRE to be sponsored by the business. I am looking for some feedback by people who succeded in adopting a BRE, or, a combination of BREs? Are there tools to manage the BR repository? Is there any pattern that might help to separate processes and BR ? Do you know some authors who wrote

I am trying to load .clp file in my iPhone application. For that I am using below code NSString *filePath = [[NSBundle mainBundle] pathForResource:@"autodemo" ofType:@"clp"]; environment = CreateEnvironment(); char *clipsFileChar = (char *)[filePath cStringUsingEncoding:NSASCIIStringEncoding]; Load(clipsFileChar); Reset(); Run(-1); NSString *evalS = [NSString stringWithFormat:@"(find-all-facts ((?f state-list)) TRUE)"]; char * evalStr = (char *)evalS; DATA_OBJECT obj;// = {0,-1}; // obj.type = STRING; // obj.value = evalStr; int i = Eval(evalStr, &obj); NSLog(@"%d",i); now when I run this code

I am wondering how I could use a guided decision table from the Drools Workbench inside a Java application using the drools runtime. The idea is that a user would work defining rules, processes and some decision tables in the workbench, which will be picked up by the drools runtime. Still, for some reason, I can't figure out how to execute this in drools, since it stored the table as a gdst file and it does not seem to compile to drools. With drools, is there a way to: - execute the gdst file as I would with an excel decision table? - or compile a gdst file in rules? I've been looking for a

I have built a Drools Rules Template using Drools 6.4.0.Final It is pretty much identical to the example provided here . I have wrapped it in a Spring RestController and deployed it as a WAR in to Tomcat . I notice that the first call is always very slow to get a result and gets slower as the number of rows in the xls spreadsheet grows. I imagine drools builds an index when the first ever KieSession is created. And that this index is subsequently cached making further calls much faster? I see the same behaviour when invoking directly from unit tests. First test is slow and subsequent tests are