[rules-users] NPE loading rule with multi restriction connectivefield constraints

[Anstis, Michael (M.)]

MR2. The typo was my fault. Let me test in trunk (at home) before I
raise a JIRA.
 
Cheers,
 
Mike


________________________________

	From: rules-users-bounces at lists.jboss.org
[mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Edson Tirelli
	Sent: 25 May 2007 13:40
	To: Rules Users List
	Subject: Re: [rules-users] NPE loading rule with multi
restriction connectivefield constraints
	
	


	2007/5/25, Anstis, Michael (M.) <manstis1 at ford.com>: 


	    Hi Michael
	
	    Are you using trunk or MR2?
	    There was a syntax change in trunk where the connective
constraints were modified to || and && for consistency with the rest of
the language. 
	    Also, I see a typo in the above rule where the variable name
is "$pminp" but was written as "$pmin".
	
	    Anyway, the exception message must be improved. Can you
please add a JIRA with your test? 
	
	    Thanks once more,
	       Edson
	 


		Hi, 

		I get a NPE (in v4.0) when loading a rulebase with the
following rule:- 

		rule "smurf" 
		when 
		        $p1 : Property( $pminp : number ) 
		        $p2 : Property( $pmaxp : number ) 
		        $p3 : Property( $mlp : number < $pmin | > $pmaxp
) 
		then 
		        System.out.println("The smurf has landed!" ); 
		end 

		If the rule uses literals in the multi-restriction
connective field constraint it loads OK. 

		The stack trace isn't very helpful:- 

		java.lang.NullPointerException 
		        at
com.ford.finance.nges.rules.RuleEngineWrapper$WorkSpace.loadRulebaseFrom
Drl(RuleEngineWrapper.java :506) 
		        at
com.ford.finance.nges.rules.RuleEngineWrapper$WorkSpace.loadRuleBase(Rul
eEngineWrapper.java:472 ) 
		        at
com.ford.finance.nges.rules.RuleEngineWrapper$WorkSpace.<init>(RuleEngin
eWrapper.java:64 ) 
		        at
com.ford.finance.nges.rules.RuleEngineWrapper.getWorkSpace(RuleEngineWra
pper.java:582 ) 

		Would you like a new JIRA? 

		With kind regards, 

		Mike 


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	-- 
	  Edson Tirelli
	  Software Engineer - JBoss Rules Core Developer
	  Office: +55 11 3529-6000
	  Mobile: +55 11 9287-5646 
	  JBoss, a division of Red Hat @ www.jboss.com 

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