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

[Terry Moriarty]

But there are no books available for 6.,x, right?  I'll just hope that 
it hasn't changed that much so I can use these books to learn the basics 
of the product.

Mark Proctor wrote:

> The book will be older, than the 6.x series.
>
> Mark
> On 29 Jan 2014, at 01:01, Inastrol <terry at inastrol.com 
> <mailto:terry at inastrol.com>> wrote:
>
>> 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?
>>>>
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>>>>
>>>
>>>------------------------------------------------------------------------
>>>
>>>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 
>> <http://drools.46999.n3.nabble.com/Drools-slf4j-and-Eclipse-Error-on-DroolsTest-Java-tp4027853p4027904.html>
>> Sent from the Drools: User forum mailing list archive 
>> <http://drools.46999.n3.nabble.com/Drools-User-forum-f47000.html> at 
>> Nabble.com <http://Nabble.com>.
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>
>
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