[rules-users] Rule storage

Michael Anstis michael.anstis at gmail.com
Mon Mar 28 09:47:13 EDT 2011


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 at 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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