[rules-users] API for reading and writing rules

Tue Mar 19 11:54:06 EDT 2013

thanks Stephen

My knowledge of DSLs is very limited. But isnt the problem still parsing in
the DRL into the DSL? I dont really understand how a DSL helps - but that
is probably due to my lack of knowledge here.

On Tue, Mar 19, 2013 at 4:41 PM, Stephen Masters [via Drools] <
ml-node+s46999n4022885h54 at n3.nabble.com> wrote:

> Depending on your model, it may be better to create a DSL as an
> intermediate language. That way you have a simplified language, which you
> control, to parse in and out, which could be tuned to your own domain model.
>
> Steve
>
>
> On 19 Mar 2013, at 14:36, kurrent93 <[hidden email]<http://user/SendEmail.jtp?type=node&node=4022885&i=0>>
> wrote:
>
> HI David
>
> Yes we are also looking into rule templates.
>
> We have come up with - what we believe - is a very natural, intuitive and
> visually appealing way to author rules. And it is tailored for our specific
> domain.
>
> One significant aspect of our work is that we are present drools authoring
> to end users - customers - rather than business users. Hence
> the importance of crafting a specialized UI, rather than the generic UI of
> Guvnor.
>
> And FYI - are also including in the design some UI elements, for a future
> version, that will use Drools Chance features.
>
> Can you point me to documentation - and ideally - samples around using
> APIs for the descriptor level?
>
> Thanks
>
>
>
>
> On Tue, Mar 19, 2013 at 3:11 PM, Davide Sottara [via Drools] <<a
> href="x-msg://398/user/SendEmail.jtp?type=node&amp;node=4022881&amp;i=0"
> target="_top" rel="nofollow" link="external">[hidden email]> wrote:
>
>> As a RETE network is being created, DRL Rules are parsed into an internal
>> "descriptor" structure (a high level AST)
>> and then compiled into a RETE.
>>
>> There are "APIs" to create rules at the descriptor level: this can then
>> be "dumped" back into DRL.
>> To work at the DRL level directly, it's common to use parametric
>> "templates".
>>
>> If your internal (meta)model is object oriented, you could consider using
>> DRL rules to write the translators :)
>>
>> Davide
>>
>> p.s. could you provide some more information about your use case? I'm
>> doing some research on rule authoring
>> environments right now. Thanks!
>>
>>
>>
>>
>> On 03/19/2013 09:54 AM, Michael Anstis wrote:
>>
>> Rules are DRL that is a String.
>>
>> Where and how you choose to store the String is up to you.
>>
>> Please try to explain what you want to achieve a little more.
>>
>> On 19 March 2013 12:49, kurrent93 <[hidden email]<http://user/SendEmail.jtp?type=node&node=4022878&i=0>
>> > wrote:
>>
>>> HI all
>>>
>>> Is there any samples or documentation for reading and writing of rules?
>>>
>>> The user case is we are trying to build a custom Rule Editor, and thus
>>> would
>>> like to write and read rules to/from our beans.
>>>
>>> Thanks
>>>
>>>
>>>
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>>
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