[rules-users] Drolls 4.0.7 exception org.drools.RuntimeDroolsException: org.drools.base.mvel.MVELEvalExpression at 1cf7491 while using matches operator

[Corneil du Plessis]

Your rule should be written as:
rule    "CPR_RULE_222222" 
	dialect "mvel"
when
	INDUD : ContactVO(districtCode matches "((UX)[ACMR][[A-Z0-9]]{3})|([A-Z0-9]++)")
then
       System.out.println("hello");

end

Code inside of eval is normal Java expressions.

On Sat, 2009-06-27 at 00:53 +0530, Kumar, Ravendra wrote:
> Hi All, 
> 
>  
> 
>  
> 
>  I am using Drools 4.0.7 and when I tried to use “matches” operator it
> is giving following  exception
> 
> The rule logic is following
> 
>  
> 
> package com.logica.heca.lpr.rule;
> 
> import com.logica.heca.lpr.domain.*;
> 
> import com.logica.heca.lpr.domain.contact.*;
> 
> import com.logica.heca.lpr.domain.ruleengine.*;
> 
> import java.util.*;
> 
> rule    "CPR_RULE_222222"
> 
> dialect "mvel"
> 
> when
> 
>    INDUD : ContactVO();
> 
>    eval(INDUD.districtCode matches
> "((UX)[ACMR][[A-Z0-9]]{3})|([A-Z0-9]++)")
> 
>    then
> 
>  
> 
>        System.out.println("hello");
> 
> End
> 
>  
> 
> Note: INDUD.districtCode returns String value.
> 
>  
> 
> While  if I changed matches operator to java method this work fine
> 
> eval(INDUD.getDistrictCode().matches("((UX)[ACMR][[A-Z0-9]]{3})|([A-Z0-9]++)"));
> 
>  
> 
> any of your esteemed help will highly be appreciated
> 
>  
> 
> Thanks
> 
> Ravendra Kumar
> 
> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
> 
>  
> 
> org.drools.RuntimeDroolsException:
> org.drools.base.mvel.MVELEvalExpression at 1cf7491 :
> java.lang.ClassCastException: java.lang.String cannot be cast to
> java.lang.Boolean
> 
>                 at
> org.drools.rule.EvalCondition.isAllowed(EvalCondition.java:82)
> 
>                 at
> org.drools.reteoo.EvalConditionNode.assertTuple(EvalConditionNode.java:148)
> 
>                 at
> org.drools.reteoo.SingleTupleSinkAdapter.createAndPropagateAssertTuple(SingleTupleSinkAdapter.java:55)
> 
>                 at
> org.drools.reteoo.LeftInputAdapterNode.assertObject(LeftInputAdapterNode.java:116)
> 
>                 at
> org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:22)
> 
>                 at
> org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:162)
> 
>                 at org.drools.reteoo.Rete.assertObject(Rete.java:175)
> 
>                 at
> org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:192)
> 
>                 at
> org.drools.reteoo.ReteooWorkingMemory.doInsert(ReteooWorkingMemory.java:71)
> 
>                 at
> org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:911)
> 
>                 at
> org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:883)
> 
>                 at
> org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:684)
> 
>                 at
> org.drools.reteoo.ReteooStatelessSession.execute(ReteooStatelessSession.java:143)
> 
>                 at
> com.logica.heca.lpr.rule.RuleTester.main(RuleTester.java:44)
> 
>                 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
> Method)
> 
>                 at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> 
>                 at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 
>                 at java.lang.reflect.Method.invoke(Method.java:597)
> 
>                 at
> com.intellij.rt.execution.application.AppMain.main(AppMain.java:90)
> 
> Caused by: java.lang.ClassCastException: java.lang.String cannot be
> cast to java.lang.Boolean
> 
>                 at
> org.drools.base.mvel.MVELEvalExpression.evaluate(MVELEvalExpression.java:42)
> 
>                 at
> org.drools.rule.EvalCondition.isAllowed(EvalCondition.java:77)
> 
>                 ... 18 more
> 
>  
> 
> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
> 
>  
> 
> Thanks and Regards,
> 
>  
> 
> Ravendra kumar
> 
> IT Consultant
> 
> __________________________________ 
> Logica- Releasing your potential
> 
>  
> 
> Margrethepladsen 4, 8000 Århus C
> Danmark 
> T: +45 2518 8864
> E-mail: ravendra.kumar at logica.com
> www.logica.dk
> 
>  
> 
> 
> 
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