The reason that I feel that this is AT
LEAST a documentation bug is that I believe that I've coded my answer
exactly as the ExamplePricingPolicy is coded, but it produces invalid rules.
Can someone please confirm that I'm
doing this right or tell me what I'm doing wrong? Doesn't anyone on
this list use decision tables and have some counsel?
Thanks.
From: Hehl, Thomas
Sent: Wednesday, August 29, 2007
1:23 PM
To: 'Rules Users List'
Subject: RE: [rules-users] FW: Decision
Tables
Got that. How do I code the action so it
calls the setAnswer() method on my BooleanAnswer object?
From: rules-users-bounces@lists.jboss.org
[mailto:rules-users-bounces@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 following entry:
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ACTION |
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anAnswer: BooleanAnswer |
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anAnswer.setAnswer($param); |
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Allowed |
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TRUE |
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TRUE |
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Generates this rule:
rule
"postponePart_10"
when
PoolInfo(courtLocation == "101", statusCode >= 0, statusCode <=
2, numberFta < 1, numberOfDeferralsPosted < 2, daysBeforeSummons>= 1,
daysBeforeSummons<= 1)
then
anAnswer: BooleanAnswer.anAnswer.setAnswer(true);;
end
This doesn't seem right at all. What I'm
trying to do is to call the setAnswer method on the object I passed in with:
StatelessSession session = participantRuleBase.newStatelessSession();
//now create
some test data
PoolInfo pool = part.getActivePool();
BooleanAnswer answer = new
BooleanAnswer();
Object[] rules = new
Object[]{pool, answer};
session.execute(rules);
return answer.isTrue();
Advice?
Thanks.
From: Hehl,
Thomas
Sent: Tuesday, August 28, 2007
4:10 PM
To: 'rules-users@lists.jboss.org'
Subject: Decision Tables
I'm having trouble figuring out the ACTION section of
a decision table. Everything else appears to be working.
My rules result in a simple True/False condition. To
do this in a decision table, I've created a class called BooleanAnswer that
looks like:
public class BooleanAnswer {
private boolean answer;
/**
* no-arg constructor
*/
public BooleanAnswer(){
}
/**
* create your own default answer
* @param answer the answer to set
*/
public BooleanAnswer(boolean answer){
setAnswer(answer);
}
/**
* @return the answer
*/
public boolean isTrue() {
return answer;
}
/**
* @param answer the answer to set
*/
public void setAnswer(boolean answer) {
this.answer = answer;
}
}
Then I create a decision table with the following
ACTION in it:
|
ACTION |
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answer: BooleanAnswer |
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answer.setAnswer($param); |
|
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Allowed |
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TRUE |
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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(JUnit3TestReference.java:128)
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)
Help for a newbie, please?
Thanks.
Thom Hehl
Sr. eJuror Architect
) Office (859)
277-8800 x 144
* Thomas.Hehl@acs-inc.com
ACS, Inc.
Government Solutions
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