Decision table functions
by Evelyne Lim Hwa Ling
Hi
I'm a newbie in Drools. I would like to know whether functions like
accumulate and exists can be applied to decision table. If yes, how to?
Where do we put the function name e.g exists i.e which cell or column?
Any example?
Thanks
Best Regards,
17 years, 2 months
NoClassDefFoundError while invoking a consequence
by Vikrant Yagnick
Hi All,
I am getting a rather strange error. When, I am invoking certain rules I get the following error as shown below(NoClassDefFoundError). I am using a stand-alone client (not an application server). The rulebase I am using is loaded in memory, so can't see why I should be getting this error.
When I print the rules available in the RuleBase it correctly lists all the rules, yet I get the error below.
I am using Drools 4.0.7 and merging different files into the same package. If I do not merge the files, it works.
Anyone have any idea what this is? Is it somehow related to the following:- https://jira.jboss.org/jira/browse/JBRULES-1684.
Cheers,
Vikrant
java.lang.NoClassDefFoundError: CapBenefit/Rule_CapEarnings_10_0
at CapBenefit.Rule_CapEarnings_10_0ConsequenceInvoker.evaluate(Rule_CapEarnings_10_0ConsequenceInvoker.java:22)
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:554)
at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:518)
at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:475)
at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:449)
at org.drools.reteoo.ReteooStatelessSession.execute(ReteooStatelessSession.java:162)
at com.mastek.elixir.system.ref.drools.DroolsBaseRuleSet.executeRuleSet(DroolsBaseRuleSet.java:121)
at com.mastek.elixir.system.ref.drools.DroolsBaseRuleSet.executeRuleSet(DroolsBaseRuleSet.java:151)
at com.benefitcalculation.tests.BenefitCalculation.ExecuteTest(BenefitCalculation.java:262)
at com.benefitcalculation.tests.BenefitCalculation.testEarningsCap2374(BenefitCalculation.java:67)
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:585)
at org.junit.internal.runners.TestMethodRunner.executeMethodBody(TestMethodRunner.java:99)
at org.junit.internal.runners.TestMethodRunner.runUnprotected(TestMethodRunner.java:81)
at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
at org.junit.internal.runners.TestMethodRunner.runMethod(TestMethodRunner.java:75)
at org.junit.internal.runners.TestMethodRunner.run(TestMethodRunner.java:45)
at org.junit.internal.runners.TestClassMethodsRunner.invokeTestMethod(TestClassMethodsRunner.java:66)
at org.junit.internal.runners.TestClassMethodsRunner.run(TestClassMethodsRunner.java:35)
at org.junit.internal.runners.TestClassRunner$1.runUnprotected(TestClassRunner.java:42)
at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
at org.junit.internal.runners.TestClassRunner.run(TestClassRunner.java:52)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:38)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
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17 years, 2 months
Re: [rules-users] How to monitor what rules are fired
by Michael Rhoden
Not sure if there are any examples around, but you could use AgendaEventListener to see any rules firing.
-Michael
----- Original Message -----
From: "Ravi Krishnamurthy" <ravik(a)savvion.com>
To: "Rules Users List" <rules-users(a)lists.jboss.org>
Sent: Monday, October 27, 2008 11:31:40 AM GMT -06:00 US/Canada Central
Subject: [rules-users] How to monitor what rules are fired
Hello:
Would like to monitor what rules are fired, how many times it is fired etc.
Is it possible to do this with Drools 4.x
Thanks for your help,
Ravi
_______________________________________________
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rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
17 years, 2 months
Error when trying to create new PackageBuilder
by webdevfreak
Hi, I'm using Drools 4.0.4 and get the following error when trying to convert
from .drl to .pkg file.
Exception in thread "main" java.lang.VerifyError: (class:
org/drools/rule/builder/PatternBuilder, method: buildConstraint signature:
(Lorg/drools/rule/builder/RuleBuildContext;Lorg/drools/rule/Pattern;Ljava/lang/Object;Lorg/drools/rule/AbstractCompositeConstraint;)V)
Incompatible argument to function
I was wondering if someone got this message. This used to work. I inherited
the code from someone and I think there might be a classpath problem or
something.
Thanks.
--
View this message in context: http://www.nabble.com/Error-when-trying-to-create-new-PackageBuilder-tp20...
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17 years, 2 months
stackOverFlowError when serializing a RuleBase
by Rene Wooller
Hi,
I get a similar error to pedrof's:
java.lang.StackOverflowError
at
java.io.ObjectStreamClass$FieldReflector.getPrimFieldValues(ObjectStream
Class.java:1907)
at
java.io.ObjectStreamClass.getPrimFieldValues(ObjectStreamClass.java:1184
)
at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:14
94)
at
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1
392)
at
java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
...
Ad infinitum
I'm wondering if anyone else has got this error?
All I'm doing is serializing the rule base:
ByteArrayOutputStream out = new ByteArrayOutputStream();
ObjectOutputStream oOut = new ObjectOutputStream(out);
oOut.writeObject(ruleBase);
oOut.flush();
oOut.close();
Any ideas? Maybe it's some kind of circular reference problem...
Cheers,
Rene
17 years, 2 months
Debug rules running on server
by Dan Seaver
How do I configure Eclipse so that I can debug into rules that are being
called from code running on the JBoss server?
I can start the server in debug mode to debug into code running on the
server, but the debugger won't drop into rules. I have no problems debugging
into rules when I run the rules via a Java Application (not on the server)
using the Drools configuration.
--
View this message in context: http://www.nabble.com/Debug-rules-running-on-server-tp20194250p20194250.html
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17 years, 2 months
About license
by jh chen
Hello,
We use JBoss Rules 4.0.7 in a commercial project. But in order to link
the drools UI with our own UI, we need to add a login page and modify the
web.xml to the drools-jbrms.war.
Is it legal for us to this in a commercial project?
And we have noticed that the drools is under ASL 2.0, does its
dependencies are also under this license?
Thanks!
17 years, 2 months
Returned mail: Data format error
by The Post Office
The original message was received at Tue, 27 Jun 2006 03:44:34 -0700
from lists.jboss.org [137.100.163.175]
----- The following addresses had permanent fatal errors -----
rules-users(a)lists.jboss.org
17 years, 2 months
