Re: [rules-users] Rule storage
Hi,
Tx agaiin for the clarification on the .xml file. It makes a lot more sense,
now.
Bulk update is indeed not provided, I was hoping to have a look at the way
the rules were stored (probably plain drl, or isn't it?) to assess what
effort a bulk update would take.
If you mean by your last statement to have rules that set the initial base
price, and afterwards add rules to modify the base price (when beverage(),
then b.augmentBasePrice(5)), I absolutely agree it is the best solution,
implementation-wise.
Regarding rule management and governance, there are a few issues that might
arise.
1) It is more difficult to get a view on your base prices
2) What if base prices are adapted manually to the desired level? Which
"adaptation rules" need to be deleted or changed?
I am not saying that this should be basic functionality of a brms, neither
am I very fond of the requirement myself. As it shifts the burden of work
from the business to the more technical people :-)
Regards,
Frank
manstis wrote:
mortgage-sample-repository.xml is the example repository installed into
Guvnor when you first deploy (and answer "yes" to the install
examples
prompt).
Changing this XML will therefore have no effect, unless you re-import the
XML too using the Administration functions in Guvnor.
In order to achieve what you state you'd need to (a) use the JCR API to
query the underlying datastore, (b) re-build your binary rule package. We
don't provide a bulk update facility.
Given your example would it be not best to have Beverages themselves as
Facts and have rules that set their prices?
Think of the Rules Engine as a RDBMS and the Facts as records.
With kind regards,
Mike
On 28 March 2011 14:09, FrankVhh <frank.vanhoenshoven(a)agserv.eu>
wrote:
> Hi,
>
> Thanks for your quick reply, Salaboy.
>
> Webdav indeed allow me to browse through the packages and I was able
to
> locate a file mortgage-sample-repository.xml in the folder
WEB-INF/classes
> of drools-fuvnor.war.
>
> However, changes in the xml did not show up in Guvnor and vice versa.
So,
> jackrabbit has to store its contents somewhere else. The folder
> "repository"
> only consists of class-files.
>
> The reason I am looking for this file, is because I am looking for
ways to
> simultaneously update multiple rule parameters, without adding a new
rule
> to
> the ruleset. F.e. we want all base prices of our beverages to
increase by
> 5%.
>
> It would be as if you run an sql update statement on a "rule
database".
> You'll probably need to parse the drl to achieve this.
>
> Regards,
> Frank
>
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