[rules-users] FW: Decision Tables
Hehl, Thomas
Thomas.Hehl at acs-inc.com
Wed Aug 29 13:23:07 EDT 2007
Got that. How do I code the action so it calls the setAnswer() method on my
BooleanAnswer object?
_____
From: rules-users-bounces at lists.jboss.org
[mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Mark Proctor
Sent: Wednesday, August 29, 2007 12:59 PM
To: Rules Users List
Subject: Re: [rules-users] FW: Decision Tables
This isn't bug, you aren't using drools correctly. Only valid java can be
used in an Action. anAnswer:BooleanAnswer is not valid java and shows up in
your generated code:
anAnswer: BooleanAnswer.anAnswer.setAnswer(true);;
Hehl, Thomas wrote:
The problem appears to be that the rule being generated is just flat wrong.
I'm starting to think this is a bug in decision tables for 4.0 GA.
The following entry:
ACTION
anAnswer: BooleanAnswer
anAnswer.setAnswer($param);
Allowed
TRUE
TRUE
Generates this rule:
rule "postponePart_10"
when
PoolInfo(courtLocation == "101", statusCode >= 0, statusCode <=
2, numberFta < 1, numberOfDeferralsPosted < 2, daysBeforeSummons>= 1,
daysBeforeSummons<= 1)
then
anAnswer: BooleanAnswer.anAnswer.setAnswer(true);;
end
This doesn't seem right at all. What I'm trying to do is to call the
setAnswer method on the object I passed in with:
StatelessSession session =
participantRuleBase.newStatelessSession();
//now create some test data
PoolInfo pool = part.getActivePool();
BooleanAnswer answer = new BooleanAnswer();
Object[] rules = new Object[]{pool, answer};
session.execute(rules);
return answer.isTrue();
Advice?
Thanks.
_____
From: Hehl, Thomas
Sent: Tuesday, August 28, 2007 4:10 PM
To: 'rules-users at lists.jboss.org <mailto:rules-users at lists.jboss.org> '
Subject: Decision Tables
I'm having trouble figuring out the ACTION section of a decision table.
Everything else appears to be working.
My rules result in a simple True/False condition. To do this in a decision
table, I've created a class called BooleanAnswer that looks like:
public class BooleanAnswer {
private boolean answer;
/**
* no-arg constructor
*/
public BooleanAnswer(){
}
/**
* create your own default answer
* @param answer the answer to set
*/
public BooleanAnswer(boolean answer){
setAnswer(answer);
}
/**
* @return the answer
*/
public boolean isTrue() {
return answer;
}
/**
* @param answer the answer to set
*/
public void setAnswer(boolean answer) {
this.answer = answer;
}
}
Then I create a decision table with the following ACTION in it:
ACTION
answer: BooleanAnswer
answer.setAnswer($param);
Allowed
TRUE
This generates the following errors:
...
Caused by: org.drools.rule.InvalidRulePackage: Rule Compilation error :
[Rule name=postponePart_15, agendaGroup=MAIN, salience=0, no-loop=false]
participantPostponementRules/Rule_postponePart_15_0.java (8:343)
: The field BooleanAnswer.answer is not visible
Rule Compilation error : [Rule name=postponePart_13, agendaGroup=MAIN,
salience=0, no-loop=false]
participantPostponementRules/Rule_postponePart_13_0.java (8:343)
: The field BooleanAnswer.answer is not visible
Rule Compilation error : [Rule name=postponePart_14, agendaGroup=MAIN,
salience=0, no-loop=false]
participantPostponementRules/Rule_postponePart_14_0.java (8:343)
: The field BooleanAnswer.answer is not visible
Rule Compilation error : [Rule name=postponePart_16, agendaGroup=MAIN,
salience=0, no-loop=false]
participantPostponementRules/Rule_postponePart_16_0.java (8:343)
: The field BooleanAnswer.answer is not visible
Rule Compilation error : [Rule name=postponePart_17, agendaGroup=MAIN,
salience=0, no-loop=false]
participantPostponementRules/Rule_postponePart_17_0.java (8:343)
: The field BooleanAnswer.answer is not visible
Rule Compilation error : [Rule name=postponePart_10, agendaGroup=MAIN,
salience=0, no-loop=false]
participantPostponementRules/Rule_postponePart_10_0.java (8:343)
: The field BooleanAnswer.answer is not visible
Rule Compilation error : [Rule name=postponePart_11, agendaGroup=MAIN,
salience=0, no-loop=false]
participantPostponementRules/Rule_postponePart_11_0.java (8:343)
: The field BooleanAnswer.answer is not visible
Rule Compilation error : [Rule name=postponePart_18, agendaGroup=MAIN,
salience=0, no-loop=false]
participantPostponementRules/Rule_postponePart_18_0.java (8:343)
: The field BooleanAnswer.answer is not visible
Rule Compilation error : [Rule name=postponePart_19, agendaGroup=MAIN,
salience=0, no-loop=false]
participantPostponementRules/Rule_postponePart_19_0.java (8:343)
: The field BooleanAnswer.answer is not visible
Rule Compilation error : [Rule name=postponePart_12, agendaGroup=MAIN,
salience=0, no-loop=false]
participantPostponementRules/Rule_postponePart_12_0.java (8:343)
: The field BooleanAnswer.answer is not visible
at org.drools.rule.Package.checkValidity(Package.java:408)
at
org.drools.common.AbstractRuleBase.addPackage(AbstractRuleBase.java:288)
at
com.acs.gs.juror.bizstrategy.PostponementStrategy.init(PostponementStrategy.
java:129)
... 14 more
)
at junit.framework.Assert.fail(Assert.java:47)
at junit.framework.TestSuite$1.runTest(TestSuite.java:263)
at junit.framework.TestCase.runBare(TestCase.java:127)
at junit.framework.TestResult$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:118)
at junit.framework.TestSuite.runTest(TestSuite.java:208)
at junit.framework.TestSuite.run(TestSuite.java:203)
at
org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3T
estReference.java:128)
at
org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:3
8)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRu
nner.java:460)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRu
nner.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)
Help for a newbie, please?
Thanks.
Thom Hehl
Sr. eJuror Architect
* Office (859) 277-8800 x 144
* Thomas.Hehl at acs-inc.com <mailto:Thomas.Hehl at acs-inc.com>
ACS, Inc.
Government Solutions
1733 Harrodsburg Road
Lexington, KY 40504-3617
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Thank you.
_____
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