[rules-users] What's wrong with the connectives?

[vanshi]

Thanks Edson for the reply but it didn't work.

First off, I want to do a null check for age and return false if age or any
variable is null.
Secondly, I tried that "," connective but didn't work either and counted
again..... there is no extra () pair.

Actually the business rule here is sourceType=='Insurance' && age!=null &&
>17 and after that if any of the bracketted value surrounded by the ( )
validates to true then, rule should validate to TRUE. So, the simplified
rules is:

sourceType=='Insurance' && (age not null && >17) AND ANY OF FOLLOWING
TRUE...(validation1) || (validation2) || (validation3)...and so on. that's
why I had put another () to surround the set of validations starting from
cholesterol.

Also, what is this error about?? line 6:342 required (...)+ loop did not
match anything at character ' ' I think this is bcoz rule is not getting
parsed properly by antlr grammer..but I'm not able to see...where the
mistake is.

Also, I noticed while debugging that person object which I'm inserting in
working memory ...retains the previous value...even when I'm changing the
values of its variables.....why is that?

Plz people take a look n point out the mistake here. I would really
appreciate any help


Edson Tirelli-3 wrote:
> 
>     Ouch.
> 
>     Start by removing all those null checks, since things like:
> 
> age > 17
> 
>     Will always return false if the age field is null, so the null check
> is
> redundant.
>     Also, replace top level && by ",", since this will make your
> constraint
> groups clear.
>     Then finally, make sure your ()-pairs are all fine and it should work.
> 
>     Just taking a quick look here I see an extra ")" here:
> 
> bodyFat > 0.31)
> 
>     []s
>     Edson
> 
>     []s
>     Edson
> 
> 2008/11/18 vanshi <nilu.thakur at gmail.com>
> 
>>
>> Hi all,
>>
>> Can somebody help me here?? I've a business rule presented in bold here
>> that
>> I've put in the DRL file in the simplest form but compilation of rule is
>> generating this error "line 6:342 required (...)+ loop did not match
>> anything at character ' '"
>> And any set of value is getting evaluated to TRUE.....that means rule
>> validation is not happening.....I understand that I can use helper
>> function
>> in java classes and call them in the rule but wanted to know how can I do
>> the same entirely in DRL file OR what's wrong with this. I've spent
>> entire
>> day to figure out but completely clueless and afraid to try function
>> approach due to project deadline. Plz help.
>>
>> pers: Person(sourceType == 'Insurance' && (age != null  && > 17) &&
>> ((cholesterol !=null && >= 200) || (hdlCholesterol !=null && < 60) ||
>> (cholesterolToHdlRation !=null && > 4.5) ||
>>                 (ldlCholesterol !=null &&  >160) || (vldl !=null && > 40)
>> ||
>> (triglyceride !=null &&  > 50) || (glucose !=null &&  >130) || (bmi
>> !=null
>> && >=25)  ||
>>                  (bodyFat > 0. 25 &&  sbjGdrCd !=null &&  == 'F'  &&  age
>> !=null && > 17
>> && < 40) ||
>>                  (bodyFat > 0.30 && sbjGdrCd !=null &&  == 'F' && age
>> !=null && > 39 && <
>> 60) ||
>>                  (bodyFat > 0.31) && sbjGdrCd !=null && == 'F' && age
>> !=null && age > 60)
>> ||
>>                  (bodyFat > 0.19 && sbjGdrCd !=null &&  == 'M' &&  age
>> !=null && >17 && <
>> 40) ||
>>                  (bodyFat > 0.23 && sbjGdrCd !=null && == 'M' && age
>> !=null
>> && age > 39 <
>> 60) ||
>>                  (bodyFat > 0.24  && sbjGdrCd !=null && == 'M'  && age
>> !=null && >=60)))
>>
>>                //Age>=18 AND Total Cholesterol >=200 OR HDL <60 OR
>> Cholesterol Ratio
>> >4.5 OR LDL >160 OR VLDL >40 OR Triglycerides >150 OR Glucose >130 OR BMI
>> >=25 OR Body Fat % greater than the range of  14% and 25% when gender = F
>> and age between or equal to 18 and 39 OR Body Fate % greater than the
>> range
>> of  18% and 30% when gender = F and age between or equal to 40 and 59 OR
>> Body Fat % greater than the range of  21% and 31% when gender = F and age
>> >60 OR Body Fat % greater than the range of  7% and 19% when gender = M
>> and
>> age between or equal to 18 and 39 OR Body Fat % greater than the range of
>> 14% and 23% when gender = M and age between or equal to 40 and 59 OR Body
>> Fat % greater than the range of  15% and 24% when gender = M and age >60
>> --
>> View this message in context:
>> http://www.nabble.com/What%27s-wrong-with-the-connectives--tp20571531p20571531.html
>> Sent from the drools - user mailing list archive at Nabble.com.
>>
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> 
> 
> 
> -- 
>  Edson Tirelli
>  JBoss Drools Core Development
>  JBoss, a division of Red Hat @ www.jboss.com
> 
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> 

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