Template parsing and expansion doesn't care much about the text between the overall delimiting keywords; basically it is just a macro processor. This means that you could very well expand a template containing DSLR rules, and feed the result as DSLR to the Builder.

Notice that template expansion can be done with a variety of data containing the actual parameters.

Also, keep in mind that you can write constraints such as
    Fact( ..., field in ( "100", "200",... ),... )
which is certainly preferable to having individual and otherwise identical rules.

-W


2011/5/20 matiasklein <mklein@porticosys.com>
Thank you.  I will read up more about templates.  Do you know if it is possible to use a DSL with templates?

Thanks Again!
________________________________________
From: manstis [via Drools] [[hidden email]]
Sent: Thursday, May 19, 2011 11:24 AM
To: Matias Klein
Subject: Re: [rules-users] DSL Enumeration / Decision Table ?

This would appear a (near) perfect use-case for "Templates".

Have a read of the documentation and examples, it should become quite clear thereafter :)

On 19 May 2011 15:46, matiasklein <[hidden email]</user/SendEmail.jtp?type=node&node=2961816&i=0>> wrote:
Hi,

I have a DSLR that reads:

There is an event with a code of "93000"

This translates via DSL to:

[when]There is an event with a code {Code}=$event : Event(Code == {Code})

Unfortunately, I have to build many rules that are exactly the same as this,
but with different qualifying codes (i.e. rule #1 qualifies with code 9300,
93001, 93002, etc., but rule #2 qualifies with 5001, 5002, 5003, etc.).

I would like users of the system to be able to maintain the list of
qualifying codes in a spreadsheet.  However, I'm not sure how to use an
enumeration loaded via a spreadsheet.

Does anyone have a recommendation on how to achieve this?

Thanks so much!

Cheers,

Matias

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