[rules-users] Rule problem

[Wolfgang Laun]

I cannot reproduce your findings.
Which bmi values cause the firing of two rules?
Are you using exactly the same .drl file Greg sent?
-W

2009/5/4 Femke De Backere <femmyke at gmail.com>

> Thanks for the answer! But I sometimes get 2 rules that are correct, and
> that is impossible. I embedded Greg's DroolsTest class in my class (I am
> doing some test on performance and studying the difference between
> performance with a plain java class), and it still doesn't work, and I
> really don't see why. Anyone any suggestions, in attachement, my class.
>
> Thx,
>
> Femke
>
>
>
>
> Op 4-mei-09, om 02:47 heeft Greg Barton het volgende geschreven:
>
>  Try the attached code.
>>
>> --- On Sun, 5/3/09, Femke De Backere <femmyke at gmail.com> wrote:
>>
>>  From: Femke De Backere <femmyke at gmail.com>
>>> Subject: Re: [rules-users] Rule problem
>>> To: "Rules Users List" <rules-users at lists.jboss.org>
>>> Date: Sunday, May 3, 2009, 6:18 PM
>>> Thx for the answer. I tried this but I doesn't seem to
>>> work. For a BMI of 20, i get the result
>>> "ondergewicht", and it should be
>>> "normal".
>>>
>>> Op 4-mei-09, om 01:04 heeft Ingomar Otter het volgende
>>> geschreven:
>>>
>>>  Femke,
>>>> The "Overgewicht| rule matches for _two_ BMIClass
>>>>
>>> facts, one with bmi >- 25 and one for BMIClass <30.
>>>
>>>> If you want to apply multiple  constraints to a single
>>>>
>>> fact you have to list them as such:
>>>
>>>>
>>>>  rule "Overgewicht"
>>>>>        when
>>>>>                bmiClass : BMIClass(bmi >= 25 && bmi
>>>>>
>>>> <30)
>>>
>>>>        then
>>>>>                System.out.println("U heeft
>>>>>
>>>> overgewicht");
>>>
>>>> end
>>>>>
>>>>
>>>>
>>>> Cheers,
>>>> Ingomar
>>>>
>>>>
>>>> Am 04.05.2009 um 00:48 schrieb Femke De Backere:
>>>>
>>>>  Hi!
>>>>>
>>>>> I want to make en BMI rule application, so I need
>>>>>
>>>> to test the BMI values. But in rule "Overgewicht"
>>> and "Normaal", I need to use an AND, but it
>>> doesn't seem to work in any way I tried.
>>>
>>>>
>>>>> Does anybody see the problem? The rest of the
>>>>>
>>>> application is based on de sample project (created when
>>> making a new Drools project).
>>>
>>>>
>>>>> Thx,
>>>>>
>>>>> Femke
>>>>>
>>>>> package bmi
>>>>>
>>>>> import bmi.DroolsTest.BMIClass;
>>>>>
>>>>> rule "Overgewicht"
>>>>>        when
>>>>>                bmiClass : BMIClass(bmi >= 25)
>>>>>                bmiClass : BMIClass(bmi < 30)
>>>>>        then
>>>>>                System.out.println("U heeft
>>>>>
>>>> overgewicht");
>>>
>>>> end
>>>>>
>>>>> rule "Obesitas"
>>>>>        when
>>>>>                bmiClass : BMIClass($bmi : bmi >= 30)
>>>>>        then
>>>>>                System.out.println("U heeft
>>>>>
>>>> obesitas");
>>>
>>>> end
>>>>>
>>>>> rule "Ondergewicht"
>>>>>        when
>>>>>                bmiClass : BMIClass($bmi : bmi < 18.5)
>>>>>        then
>>>>>                System.out.println("U heeft
>>>>>
>>>> ondergewicht");
>>>
>>>> end
>>>>>
>>>>> rule "Normaal"
>>>>>        when
>>>>>                bmiClass : BMIClass(bmi >= 18.5)
>>>>>                bmiClass : BMIClass(bmi < 25)
>>>>>        then
>>>>>                System.out.println("U heeft een normaal
>>>>>
>>>> gewicht");
>>>
>>>>
>>>>>  end             _______________________________________________
>>>
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>>>>>
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>>>
>>>>
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>>
>>
>> <
>> DroolsTest
>> .java><Sample.drl>_______________________________________________
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>
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