[rules-users] One question about Database interface

[Senlin Liang]

Hi,

Thanks a lot! The information is really helpful.

One more question is that: I have to create the mapping between
"objects" to relational database "tables", or Drools can do this
automatically (by create the tables/objects of correct types) ?

Thanks again,
Senlin

On Tue, Jul 8, 2008 at 9:30 AM, Anstis, Michael (M.) <manstis1 at ford.com> wrote:
> Hi,
>
> Jaroslaw Kijanowski's article looks like a really good starting point
> for you!
>
> Hibernate provide Entity Manager and Annotations extensions if you want
> to go the JPA route.
>
> >From a Drool's perspective you need only concern yourself with "from"
> which is documented as:-
>
> 6.5.2.8. From
>
> The from Conditional Element allows users to specify a source for
> patterns to reason over. This allows the engine to reason over data not
> in the Working Memory. This could be a sub-field on a bound variable or
> the results of a method call. It is a powerful construction that allows
> out of the box integration with other application components and
> frameworks. One common example is the integration with data retrieved
> on-demand from databases using hibernate named queries.
>
> For information on the rest of Jaroslaw's example, you will need to read
> up on Hibernate.
>
> With kind regards,
>
> Mike
>
> -----Original Message-----
> From: rules-users-bounces at lists.jboss.org
> [mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Senlin Liang
> Sent: 08 July 2008 13:12
> To: Rules Users List
> Subject: Re: [rules-users] One question about Database interface
>
> Thanks.  Where could I find the related manual or instructions? I
> searched through the doc for drools, and the email archive, there is
> really no good example or explanation on how to achieve this.
>
> (What I want is to insert, select or delete some objects in relational
> database such as mysql.)
>
> Any information is greatly appreciated.
> Thanks.
>
> On Tue, Jul 8, 2008 at 4:20 AM, Anstis, Michael (M.) <manstis1 at ford.com>
> wrote:
>> Have a look at an example posted earlier this week whereby somebody
>> (sorry I forget who) was using JPA from within a rule.
>>
>> Once you understand how JPA was used then the remaining questions
> relate
>> more specifically to JPA.
>>
>> As Mark says, (native) Hibernate can also be used very easily.
>>
>> With kind regards,
>>
>> Mike
>>
>>
>> -----Original Message-----
>> From: rules-users-bounces at lists.jboss.org
>> [mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Senlin Liang
>> Sent: 08 July 2008 03:18
>> To: Rules Users List
>> Subject: [rules-users] One question about Database interface
>>
>> Hi all,
>>
>> Is there some convinent database interface implemented in Drools
>> (store and retrieve data from DBMS, such as mysql) ?
>>
>> I checked the manual, and found no such information. So I am assuming
>> that I will have to use JDBC. Is it right?
>>
>> Thanks,
>> Senlin Liang
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>
>
>
> --
> Senlin Liang
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-- 
Senlin Liang