Sorry if this is covered, I looked up in documentation and searched here before posting. env: Drools 4.0.7 running in Eclipse 3.3.2 on Mac OSX 10.5 Here's the confusion...... create 2 rules in agenda A in package A create 2 rules in agenda B in package A setFocus(A) setFocus(B) load some objects to evaluate in stateless session, call fireallrules and works as expected. now, say I wish to remove the rules in Agenda A from the RuleBase, I tried three different ways, including removing the rules directly from the rulebase! But then, when I load in some new objects in a new session, set the focus to Agenda A (which I thought I removed all the rules for it)...instead of getting nothing or an exception, the rules in agenda A still fire, even though I removed them (or I thought I did). 1) how do I remove rules if these three ways dont work (at least they dont appear to - or much more likely - 1) what the heck am I doing wrong.... 2) my needs are two add and subtract agendas on the fly, as I will have multiple customers with multiple sets of rules with different agendas (is there a better way then this - i.e. should I have separate rulebases?) Thanks, James A. Brannan package com.sample; import java.io.*; import org.drools.RuleBase; import org.drools.RuleBaseFactory; import org.drools.compiler.PackageBuilder; import org.drools.StatefulSession; import org.drools.rule.Package; import org.drools.rule.Rule; /** * This is a sample file to launch a rule package from a rule source file. */ public class DroolsTestTwo { public static void main(String[] args) { try { File dir = new File("/Users/brannanj/Documents/workspace/ BankingTutorial/src/main/rules"); File[] files = dir.listFiles(); PackageBuilder builder = new PackageBuilder(); for(int i = 0; i < files.length; i++) { if(files[i].getName().indexOf(".xml") > 0) continue; //Reader reader = ; builder.addPackageFromXml(new FileReader(files[i])); } Package pkg = builder.getPackage(); RuleBase ruleBase = RuleBaseFactory.newRuleBase(); ruleBase.addPackage( pkg ); ruleBase.addPackage(builder.getPackage()); final StatefulSession session = ruleBase.newStatefulSession(false); User user = new User(); user.addRole("admin"); user.addRole("tester"); FooBarInfoTwo y = new FooBarInfoTwo(); y.setProperty("type"); y.setValue("cheddar"); FooBarInfoTwo z = new FooBarInfoTwo(); z.setProperty("age"); z.setValue(new Integer(32)); FooBarInfoTwo a = new FooBarInfoTwo(); z.setProperty("weight"); z.setValue(new Double(22.222)); FooBarInfo x = new FooBarInfo(); x.setValue("color", "red"); x.setValue("count", new Integer(23)); FooBarInfoTwo b = new FooBarInfoTwo(); b.setProperty("smelly"); b.setValue("true"); FooBarInfoTwo c = new FooBarInfoTwo(); b.setProperty("birthday"); b.setValue(new SimpleDate("12/01/2006")); session.insert(x); session.insert(y); session.insert(z); session.insert(a); session.insert(b); session.insert(user); session.setFocus("GroupOne"); session.setFocus("GlobalsGroup"); session.setFocus("GroupTwo"); session.fireAllRules(); //remove GroupOne rules from package pkg = builder.getPackage(); Rule[] rules = pkg.getRules(); for(int i =0;i<rules.length;i++) { System.out.println("Agendagroup in package: " + rules[i].getAgendaGroup()); if(rules[i].getAgendaGroup().equals("GroupOne")) { pkg.removeRule(rules[i]); } } System.out.println("GET THE RULES AGAIN TO SEE IF BY REFERENCE......"); pkg = builder.getPackage(); rules = pkg.getRules(); for(int i =0;i<rules.length;i++) { System.out.println("Agendagroup in package: " + rules[i].getAgendaGroup()); } System.out.println("NOW EVALUATE THE RULEBASE PACKAGE......"); pkg = ruleBase.getPackages()[0]; rules = pkg.getRules(); for(int i =0;i<rules.length;i++) { System.out.println("Agendagroup in package from rulebase: " + rules[i].getAgendaGroup()); } session.dispose(); final StatefulSession session2 = ruleBase.newStatefulSession(false); User user2 = new User(); user2.addRole("admin"); user2.addRole("tester"); FooBarInfo x2 = new FooBarInfo(); x2.setValue("color", "red"); x2.setValue("count", new Integer(23)); x2.setValue("description", "a foobarinfo"); System.out.println("SECOND TEST**************************"); session2.insert(x2); session2.insert(user2); session2.setFocus("GroupOne"); session2.fireAllRules(); session2.dispose(); System.out.println("RULES STILL THERE EVEN THOUGH SEEMS TO BE BY REFERENCE!"); rules = pkg.getRules(); for(int i =0;i<rules.length;i++) { System.out.println("Agendagroup in package from rulebase: " + rules[i].getAgendaGroup()); if(rules[i].getAgendaGroup().equals("GroupOne")) { ruleBase.removeRule(rules[i].getAgendaGroup(), rules[i].getName()); System.out.println("removed rule: " + rules[i].getName() + " directly from ruleBase"); } } System.out.println("THIRD TEST WITH RULES REMOVED FROM RULEBASE ************************"); final StatefulSession session3 = ruleBase.newStatefulSession(false); User user3 = new User(); user3.addRole("admin"); user3.addRole("tester"); FooBarInfo x3 = new FooBarInfo(); x3.setValue("color", "red"); x3.setValue("count", new Integer(23)); x3.setValue("description", "a foobarinfo"); session3.insert(x3); session3.insert(user3); session3.setFocus("GroupOne"); session3.fireAllRules(); System.out.println("Mystifying I still get the rules fired...."); } catch (Throwable t) { t.printStackTrace(); } } }