Re: [rules-users] Drools, slf4j and Eclipse Error on DroolsTest.Java

Figured out the problem. Didn't have Maven installed as a plug-in correctly. The book I'm using to learn Drools, didn't include that step. Terry Moriarty wrote: > This isn't my code. It's created when a Drools project is created in Eclipse. I guess that's why this is so frustrating. It's supposed to demonstrate a very simple Drools program and I can't get it to work. It's hard to debug someone else's code when you don't know the language yet. > > Code is kSession.insert(message); > > Thanks > > sdjoe [via Drools] wrote: >> Hard to say without seeing your code. Can you post it here and point out where the NPE is happening on line 23? >> >> If you reply to this email, your message will be added to the discussion below: >> http://drools.46999.n3.nabble.com/Drools-slf4j-and-Eclipse-Error-on-Drool... >> To unsubscribe from Drools, slf4j and Eclipse Error on DroolsTest.Java, click here. >> NAML > > package com.sample; > > import org.kie.api.KieServices; > import org.kie.api.runtime.KieContainer; > import org.kie.api.runtime.KieSession; > > /** > * This is a sample class to launch a rule. > */ > public class DroolsTest { > > public static final void main(String[] args) { > try { > // load up the knowledge base > KieServices ks = KieServices.Factory.get(); > KieContainer kContainer = ks.getKieClasspathContainer(); > KieSession kSession = kContainer.newKieSession("ksession-rules"); > > // go ! > Message message = new Message(); > message.setMessage("Hello World"); > message.setStatus(Message.HELLO); > kSession.insert(message); > kSession.fireAllRules(); > } catch (Throwable t) { > t.printStackTrace(); > } > } > > public static class Message { > > public static final int HELLO = 0; > public static final int GOODBYE = 1; > > private String message; > > private int status; > > public String getMessage() { > return this.message; > } > > public void setMessage(String message) { > this.message = message; > } > > public int getStatus() { > return this.status; > } > > public void setStatus(int status) { > this.status = status; > } > > } > > } > View this message in context: Re: Drools, slf4j and Eclipse Error on DroolsTest.Java Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users