[rules-users] Replacing Hand Written Rules

Nirmal Fernando nirmal070125 at gmail.com
Sun Oct 31 09:40:32 EDT 2010


Hi Laun,

Consider that 5000+ is a large number. Estimate the time it'll take you
> to transform one rule: Will you be able to spend, say, 3 months for this
> task?
>

We've already developed a piece of code which does this conversion.
Following is an example.
Can you please comment on the converted rule? whether it is a valid drools
rule or not?

*Our Rule*
IF _psubj(be,$var0) ^ NOT date($var0) ^ NOT $var0=$Time THEN
^1_Existence:Entity(be,$var0)

*Converted Drools Rule*
rule "0"
    when p: Processor( eval(p.existence("_psubj(be,"+p.conceptVar[0]+")"))
&& eval(!p.existence("date("+p.conceptVar[0]+")")) &&
eval(!p.testVar(p.conceptVar[0],"$Time")) )
    then
        eval(p.AppendRule(" ^1_Existence:Entity(be,"+p.conceptVar[0]+")"));
    end



Thanks.

> -W
>
>
>
> 2010/10/31 Nirmal Fernando <nirmal070125 at gmail.com>
>
>> Something like following 2 rules:
>>
>> # IF when($Awareness,$var0) THEN ^1_Awareness:Time($Awareness,$var0)
>> # IF $relTime($Awareness,$Time) THEN ^1_Awareness:Time($Awareness,$Time)
>>
>> thanks.
>>
>> 2010/10/31 Wolfgang Laun <wolfgang.laun at gmail.com>
>>
>> What, exactly, do you mean by "hand written"? Java statements? Another
>>> Rule System?
>>> Can you provide a sample?
>>>
>>>
>>> 2010/10/31 Nirmal Fernando <nirmal070125 at gmail.com>
>>>
>>>> Hi,
>>>>
>>>> I am having a 5000+ hand written rules which is used in an open source
>>>> project.
>>>> I am searching for the reasons, me to be shifted to a rule engine like
>>>> Drools, instead of using hand written once.
>>>> Drools rules can be debugged that will be a plus point, isn't it? I
>>>> would love to get a list of benefits that I will be getting.
>>>>
>>>> Thanks.
>>>>
>>>> --
>>>> Best Regards,
>>>> Nirmal
>>>>
>>>> C.S.Nirmal J. Fernando
>>>> Department of Computer Science & Engineering,
>>>> Faculty of Engineering,
>>>> University of Moratuwa,
>>>> Sri Lanka.
>>>>
>>>> Blog: http://nirmalfdo.blogspot.com/
>>>>
>>>>
>>>> _______________________________________________
>>>> rules-users mailing list
>>>> rules-users at lists.jboss.org
>>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>>
>>>>
>>>
>>> _______________________________________________
>>> rules-users mailing list
>>> rules-users at lists.jboss.org
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>>>
>>>
>>
>>
>> --
>> Best Regards,
>> Nirmal
>>
>> C.S.Nirmal J. Fernando
>> Department of Computer Science & Engineering,
>> Faculty of Engineering,
>> University of Moratuwa,
>> Sri Lanka.
>>
>> Blog: http://nirmalfdo.blogspot.com/
>>
>>
>> _______________________________________________
>> rules-users mailing list
>> rules-users at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-users
>>
>>
>
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>



-- 
Best Regards,
Nirmal

C.S.Nirmal J. Fernando
Department of Computer Science & Engineering,
Faculty of Engineering,
University of Moratuwa,
Sri Lanka.

Blog: http://nirmalfdo.blogspot.com/
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