[rules-users] Inheritance-Like Design Question

[Pavel Tavoda]

For this you have DSL. It's very good for end users. 80% of work will
be done in nice predefined language which you build for them. Advanced
features should be temporarily patched by using ">" at beginning of
line with normal Drools syntax. Look for DSL in Drools manual. Or you
can use excel or templates.
What "control logic" rules are doing? Can't you deduce from some other
object that action was done? Than you should avoid Status object.

Pavel

2010/3/9 Moe Alkhafaji <moe.alkhafaji at medcpu.com>:
> Thanks Pavel.  I was hoping for more of a transparent functionality
> supported by Drools than have my users add those control method calls. I am
> trying to make their rules as "control logic" blind as possible. But, I
> guess they would have to do that.
>
> Also, any idea on re-using an object from the parent rule? What is the
> syntax for using an object declared in the parent rule? Thanks.
>
> On Tue, Mar 9, 2010 at 11:25 AM, Pavel Tavoda <pavel.tavoda at gmail.com>
> wrote:
>>
>> Aha, misunderstanding. Yes you can't use activation group if you want
>> execute more children rules. However you can use fact (Status) to
>> avoid evaluating parent rule. My suggestion:
>>
>> Rule DEFAULT
>> salience -100
>> if A and ! Status(done) then DEFAULT end
>>
>> Rule A
>> if A and B then SOMETHINGB; update(Status(done)) end
>>
>> Rule B
>> if A or B then SOMETHINGB; update(Status(done)) end
>>
>> Rule C
>> if A or C then SOMETHINGC; update(Status(done)) end
>>
>> At beginning insert Status with e.g. "ready". It's possible to use
>> instead of update also insert but because you can fire more children
>> rules it will be waste of memory.
>>
>> Hope this help
>>
>> Pavel
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>
>
>
> --
> Moe Alkhafaji
> Chief Technology Officer, MedCPU
> Phone: (630) 290-1113
> Email: cto at medcpu.com
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