Hey all, I'm working with Drools Expert 5.3.0 Final and have run across a problem that has me pulling my hair out. Basically, I'm creating a couple of Commands, adding them to a BatchExecutionCommand and then executing that command... but based on the output of the processing, it looks like the same command was executed repeatedly, instead of the Commands being iterated. Here's what my rule file looks like: package exp import exp.DriversLicense3Main.Applicant; import exp.DriversLicense3Main.Application; rule "Is of valid age" when $app: Applicant( age < 18 ) $a : Application() then System.out.println( "matched one: " + $app.getName() ); $a.setValid( false ); end And here's the driver that runs things: public static void main(String[] args) { final KnowledgeBuilder kbuilder = KnowledgeBuilderFactory .newKnowledgeBuilder(); // this will parse and compile in one step kbuilder.add( ResourceFactory.newClassPathResource( "DriversLicense3.drl", DriversLicense3Main.class ), ResourceType.DRL ); // Check the builder for errors if ( kbuilder.hasErrors() ) { System.out.println( kbuilder.getErrors().toString() ); throw new RuntimeException( "Unable to compile \"DriversLicense3.drl\"." ); } // get the compiled packages (which are serializable) final Collection<KnowledgePackage> pkgs = kbuilder .getKnowledgePackages(); // add the packages to a knowledgebase (deploy the knowledge packages). final KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase(); kbase.addKnowledgePackages( pkgs ); StatelessKnowledgeSession ksession = kbase.newStatelessKnowledgeSession(); Applicant applicant1 = new Applicant( "Phillip", 38 ); Application app1 = new Application(); List l1 = new ArrayList(); l1.add( app1); l1.add( applicant1); Applicant applicant2 = new Applicant( "Joe", 17 ); Application app2 = new Application(); List l2 = new ArrayList(); l2.add( app2 ); l2.add( applicant2 ); List<Command> cmds = new ArrayList<Command>(); cmds.add( CommandFactory.newInsertElements( l1, "phil", true, "phil" ) ); cmds.add( CommandFactory.newInsertElements( l2, "joe", true, "joe" ) ); BatchExecutionCommand batch = CommandFactory.newBatchExecution(cmds, "ksession1"); ExecutionResults results = ksession.execute( batch ); System.out.println( ((List<Applicant>)results.getValue( "phil" )).get(1).getName() + ": " + ((List<Application>)results.getValue( "phil" )).get(0).isValid() ); System.out.println( ((List<Applicant>)results.getValue( "joe" )).get(1).getName() + ": " + ((List<Application>)results.getValue( "joe" )).get(0).isValid() ); System.out.println( "done" ); } Applicant and Application are just some data classes that look like this: public static class Applicant { private String name; private int age; public Applicant() {} public Applicant( final String name, final int age ) { this.name = name; this.age = age; } // getter and setter methods here public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } } public static class Application { private Date dateApplied; private boolean valid = true; // getter and setter methods here public Date getDateApplied() { return dateApplied; } public void setDateApplied(Date dateApplied) { this.dateApplied = dateApplied; } public boolean isValid() { return valid; } public void setValid(boolean valid) { this.valid = valid; } } So when I run this, I would expect to see the application "Joe" match the rule and have the valid attribute on the Application set to false, while the "Phil" one should remain true. But when I run this, I get the out (from my println command in the rule) matched one: Joe matched one: Joe and when I retrieve the results by name, I find that both Applications have had the valid field set to false. Can anybody help point me in the right direction here? Am I doing something wrong, or is this possibly a bug in Drools, or something else? Thanks, Phil Visit us on the Web at mesirowfinancial.com This communication may contain privileged and/or confidential information. It is intended solely for the use of the addressee. If you are not the intended recipient, you are strictly prohibited from disclosing, copying, distributing or using any of this information. If you received this communication in error, please contact the sender immediately and destroy the material in its entirety, whether electronic or hard copy. Confidential, proprietary or time-sensitive communications should not be transmitted via the Internet, as there can be no assurance of actual or timely delivery, receipt and/or confidentiality. This is not an offer, or solicitation of any offer to buy or sell any security, investment or other product. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users