error de compilation
by fakhfakh ismail
hello,
when I executed my project an exception is affiched
[java] line 1:17: unexpected token: ,
[java] StringTemplate: error: problem parsing template 'returnValueMethod': java.lang.NullPointerException
[java] line 1:17: unexpected token: ,
[java] StringTemplate: error: problem parsing template 'predicateMethod': java.lang.NullPointerException
[java] line 1:17: unexpected token: ,
[java] StringTemplate: error: problem parsing template 'evalMethod': java.lang.NullPointerException
[java] line 1:17: unexpected token: ,
[java] StringTemplate: error: problem parsing template 'consequenceMethod': java.lang.NullPointerException
[java] line 1:17: unexpected token: ,
[java] StringTemplate: error: problem parsing template 'returnValueInvoker': java.lang.NullPointerException
[java] line 1:17: unexpected token: ,
[java] StringTemplate: error: problem parsing template 'predicateInvoker': java.lang.NullPointerException
[java] line 1:17: unexpected token: ,
[java] StringTemplate: error: problem parsing template 'evalInvoker': java.lang.NullPointerException
[java] line 1:13: unexpected token: ,
[java] StringTemplate: error: problem parsing template 'consequenceInvoker': java.lang.NullPointerException
[java] Warning: An error occurred compiling a semantic invoker. Errors should have been reported elsewhere.
[java] Warning: An error occurred compiling a semantic invoker. Errors should have been reported elsewhere.
[java] Exception in thread "main" org.drools.rule.InvalidRulePackage: Rule Compilation error Syntax error, insert "}" to complete ClassBody Syntax error, insert ")" to complete MethodDeclaration Syntax error, insert ";" to complete MethodDeclaration
[java] Rule Compilation error Syntax error, insert "}" to complete ClassBody Syntax error, insert ")" to complete MethodDeclaration Syntax error, insert ";" to complete MethodDeclaration
[java] at org.drools.rule.Package.checkValidity(Unknown Source)
[java] at org.drools.common.AbstractRuleBase.addPackage(Unknown Source)
[java] at org.drools.jsr94.rules.admin.RuleExecutionSetImpl.<init>(Unknown Source)
[java] at org.drools.jsr94.rules.admin.LocalRuleExecutionSetProviderImpl.createRuleExecutionSet(Unknown Source)
[java] at org.drools.jsr94.rules.admin.LocalRuleExecutionSetProviderImpl.createRuleExecutionSet(Unknown Source)
[java] at org.drools.jsr94.rules.admin.LocalRuleExecutionSetProviderImpl.createRuleExecutionSet(Unknown Source)
[java] at hero.client.test.DroolsTest.main(DroolsTest.java:32)
please help me i need your help
best regards
Ismail
---------------------------------
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18 years, 7 months
error
by fakhfakh ismail
hello,
When I execute my code Java an error is affiched
[java] Exception in thread "main" java.lang.NoClassDefFoundError: org/antlr/stringtemplate/StringTemplateGroup
[java] at org.drools.semantics.java.RuleBuilder.<clinit>(Unknown Source)
[java] at org.drools.compiler.PackageBuilder.addRule(Unknown Source)
[java] at org.drools.compiler.PackageBuilder.addPackage(Unknown Source)
[java] at org.drools.compiler.PackageBuilder.addPackageFromDrl(Unknown Source)
[java] at org.drools.jsr94.rules.admin.LocalRuleExecutionSetProviderImpl.createRuleExecutionSet(Unknown Source)
[java] at org.drools.jsr94.rules.admin.LocalRuleExecutionSetProviderImpl.createRuleExecutionSet(Unknown Source)
[java] at hero.client.test.DroolsTest.main(DroolsTest.java:32)
I'm sure that the class org/antlr/stringtemplate/StringTemplateGroup exist
thank you for your help.
Best regards
Ismail
---------------------------------
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18 years, 7 months
4.0.0-M2: RuleFlow "CannotResolveClassException" error
by Anstis, Michael (M.)
Hi,
I added the Eclipse 4.0.0-M2 plugin and created an example project;
changing the class path to reference core-4.0.0-M2, compiler-4.0.0-M2
and dependencies.
I modified the example to include Ruleflow based upon the wiki entry for
4.0.0-M2 and created a simple RuleFlow with two RuleGroups ("one" and
"two") one for each rule in the Sample.drl.
I also modified the DRL to include Rule-Group attributes ("one" and
"two"). Unfortunately when running within Eclipse I received the
following error:-
com.thoughtworks.xstream.alias.CannotResolveClassException:
org.drools.eclipse.flow.ruleflow.core.RuleFlowProcessWrapper :
org.drools.eclipse.flow.ruleflow.core.RuleFlowProcessWrapper
at
com.thoughtworks.xstream.mapper.DefaultMapper.realClass(DefaultMapper.ja
va:35)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.ja
va:18)
at
com.thoughtworks.xstream.mapper.XmlFriendlyMapper.realClass(XmlFriendlyM
apper.java:44)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.ja
va:18)
at
com.thoughtworks.xstream.mapper.ClassAliasingMapper.realClass(ClassAlias
ingMapper.java:49)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.ja
va:18)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.ja
va:18)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.ja
va:18)
at
com.thoughtworks.xstream.mapper.DynamicProxyMapper.realClass(DynamicProx
yMapper.java:46)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.ja
va:18)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.ja
va:18)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.ja
va:18)
at
com.thoughtworks.xstream.mapper.ArrayMapper.realClass(ArrayMapper.java:7
0)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.ja
va:18)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.ja
va:18)
at
com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.ja
va:18)
at
com.thoughtworks.xstream.mapper.CachingMapper.realClass(CachingMapper.ja
va:27)
at
com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.ja
va:95)
at
com.thoughtworks.xstream.core.ReferenceByIdMarshallingStrategy.unmarshal
(ReferenceByIdMarshallingStrategy.java:12)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:552)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:540)
at com.thoughtworks.xstream.XStream.fromXML(XStream.java:490)
at
org.drools.compiler.ProcessBuilder.addProcessFromFile(ProcessBuilder.jav
a:54)
at com.sample.DroolsTest.readRule(DroolsTest.java:67)
at com.sample.DroolsTest.main(DroolsTest.java:22)
Suspecting I've missed something obvious can you advise?
With kind regards,
Michael Anstis
18 years, 7 months
function compilation error
by JLL
hi all
I've to following error when using one of my drl
Can't i use more than one param in the function call ?
thanks
JLL
javax.ejb.EJBTransactionRolledbackException:
org.drools.rule.InvalidRulePackage: Function Compilation error
Rule Compilation error The method getMin(PrestationFacturable,
PrestationFacturable) in the type GetMin is not applicable for the arguments
(PrestationFacturable, FactHandle)
the drl file is the folowing
package be.labocollard.server.rules ;
import be.labocollard.server.entities.PrestationFacturable;
import be.labocollard.server.entities.Prestation;
function PrestationFacturable getMin(PrestationFacturable pf1,
PrestationFacturable pf2) {
if (pf1.getPrestation().getNombreB() > pf2.getPrestation().getNombreB())
return pf1;
else return pf2;
}
rule "cumul_1"
when
$pf1 : PrestationFacturable( $p1 : prestation ->
($p1.getCodePrestation().equals("120153") ||
$p1.getCodePrestation().equals("120175") ||
$p1.getCodePrestation().equals("120190")))
$pf2 : PrestationFacturable( $p2 : prestation ->
($p2.getCodePrestation().equals("120050") ||
$p2.getCodePrestation().equals("120514")))
then
retract(getMin($pf1, $pf2));
end
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18 years, 7 months
Drools bug ?? (3.0.6)
by seeker
I use Drools 3.0.6 and I get some NullPointerException when creating my
facts:
Exception in thread "main" org.drools.RuntimeDroolsException:
java.lang.NullPointerException
at org.drools.rule.EvalCondition.isAllowed(Unknown Source)
at org.drools.reteoo.EvalConditionNode.assertTuple(Unknown Source)
at org.drools.reteoo.TupleSource.propagateAssertTuple(Unknown Source)
at org.drools.reteoo.JoinNode.assertObject(Unknown Source)
at org.drools.reteoo.ObjectSource.propagateAssertObject(Unknown Source)
at org.drools.reteoo.AlphaNode.assertObject(Unknown Source)
at org.drools.reteoo.ObjectSource.propagateAssertObject(Unknown Source)
at org.drools.reteoo.ObjectTypeNode.assertObject(Unknown Source)
at org.drools.reteoo.Rete.assertObject(Unknown Source)
at org.drools.reteoo.ReteooRuleBase.assertObject(Unknown Source)
at org.drools.reteoo.ReteooWorkingMemory.doAssertObject(Unknown Source)
at org.drools.common.AbstractWorkingMemory.assertObject(Unknown Source)
at org.drools.common.AbstractWorkingMemory.assertObject(Unknown Source)
...
Caused by: java.lang.NullPointerException
at org.sercho.shem.rules.Rule_Zeittest_0.eval0(Rule_Zeittest_0.java:25)
at
org.sercho.shem.rules.Rule_Zeittest_0Eval0Invoker.evaluate(Rule_Zeittest_0Eval0Invoker.java:19)
... 21 more
The rule that is causing this goes like this:
rule "Zeittest"
when
room : Room ( )
uhr : AlarmClock( applianceStateResource == ApplianceStateEnum.on,
location == room, $alarmTime : alarmTime )
eval( $alarmTime.getHours() > 10 )
then
...
If I omit the eval, ths error will not occur (and I can access
$alarmTime.getHours() in RHS)
I wonder if I do something wrong or if it is a Drools bug.
Any hints ?
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18 years, 7 months
agenda-group clarification
by ch4nd4n
Hi,
I would like to know if my understanding about agenda-group and salience in
Drools 3.x is correct or not.
# agenda-group fires only if auto-focus is set on any of the rules under the
same agenda-group
# all rules under same agenda-group would get fired first and then it might
switch to any other rule (which might be in or not in agenda-group)
# agenda-group precedes salience if auto-focus is set for the agenda group.
Which means if any other rule (without agenda-group) but higher salience
would be fired only after execution of the all the rules in the
agenda-group.
any clarifications regarding this would be a great help
Thank
Ck
http://www.gfour.net
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18 years, 7 months
rule creation
by seeker
I'd like to build a rule which tests for a special property.
rule "Timer"
when
clock : AlarmClock( $time : alarmTime)
then
// some consequences..
the problem is the $time. I bound it to a variable so far.
It is a complex object which I actually want to check for
getAlarmTime().getHour() > 10
I dont know how.
I want the rule to fire if the hour of the alarmTime has reached a certain
value.
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18 years, 7 months
