[rules-users] Query on web services and database stuff

[Michael Anstis]

Firstly a correction.

Drools "rule engine" otherwise known as Drools Expert does not use JCR by
default. Guvnor (Drools rule authoring and management web applicafion) does
use JCR as its persistent store. JCR is better thought of as a hierarchical
data store than a (R)DBMS.

That said Drools Expert can access databases and web services with the
assistance of helper classes and the "from" keyword. The user guide will
give fuller details.

That said you are also free to retrieve Facts for insertion into Drools
Expert from where- and however you like.

sent on the move

On 14 Feb 2013 07:34, "starfish15" <pooja.ghosh at accenture.com> wrote:

> Hello All,
>
> I am starting up on a project which requires Drools rules. I have been
> asked
> certain basic Q's. Am jotting them below
>
> 1. *Can the Drools Rule engine communicate to a DB *
>
> I know by default, drools does use the *Apache JackRabbit DB* to store
> respective assets and there are means to use other DBs as well. Not sure
> what else this Q could mean. So would really appreciate if some light can
> be
> thrown on this. What else things which could be achieved through the rules
> and DB connection
>
> 2. *Can the Drools Rule engine do web service calls to other system*
>
> I am not sure if this can be achieved through Drools. Would appreciate if
> some assistance could be provided on this and some working examples as well
> if this can actually be achieved.
>
> Regards,
> starfish
>
>
>
> --
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