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Posted to users@jena.apache.org by James Anderson <an...@gmail.com> on 2019/09/03 08:40:25 UTC
is it possible to combine kleene paths and rules?
good morning;
has there been any experience combining the general purpose rule engine with arbitrary length property paths?
when i read the jena documentation, i fail to find “path" on the page
https://jena.apache.org/documentation/query/property_paths.html
and neither does either “rule" or “reason" appear on
https://jena.apache.org/documentation/inference/
but the descriptions do leave the impression that it should be possible to combine the two.
are there any well known examples?
best regards, from berlin,
Re: is it possible to combine kleene paths and rules?
Posted by Dave Reynolds <da...@gmail.com>.
Hi James,
On 05/09/2019 09:19, james anderson wrote:
> good morning;
>
>> On 2019-09-05, at 09:46:27, Dave Reynolds <da...@gmail.com> wrote:
>>
>> Hi,
>>
>> In principle, I could imagine it would be possible to allow property paths in the predicate position in body patterns.
>
> yes, that i would expect.
> i am interested in the other variant: where the effect of a predicate is defined b a rule.
Sorry don't follow what you have in mind here. However, that likely
means that the answer ("not aware of any work on this") doesn't change :)
Cheers,
Dave
>> Personally I'm not aware of any work like this.
>>
>> Dave
>>
>> On 03/09/2019 09:40, James Anderson wrote:
>>> good morning;
>>> has there been any experience combining the general purpose rule engine with arbitrary length property paths?
>>> when i read the jena documentation, i fail to find “path" on the page
>>> https://jena.apache.org/documentation/query/property_paths.html
>>> and neither does either “rule" or “reason" appear on
>>> https://jena.apache.org/documentation/inference/
>>> but the descriptions do leave the impression that it should be possible to combine the two.
>>> are there any well known examples?
>>> best regards, from berlin,
>
Re: is it possible to combine kleene paths and rules?
Posted by james anderson <ja...@dydra.com>.
good morning;
> On 2019-09-05, at 09:46:27, Dave Reynolds <da...@gmail.com> wrote:
>
> Hi,
>
> In principle, I could imagine it would be possible to allow property paths in the predicate position in body patterns.
yes, that i would expect.
i am interested in the other variant: where the effect of a predicate is defined b a rule.
>
> Personally I'm not aware of any work like this.
>
> Dave
>
> On 03/09/2019 09:40, James Anderson wrote:
>> good morning;
>> has there been any experience combining the general purpose rule engine with arbitrary length property paths?
>> when i read the jena documentation, i fail to find “path" on the page
>> https://jena.apache.org/documentation/query/property_paths.html
>> and neither does either “rule" or “reason" appear on
>> https://jena.apache.org/documentation/inference/
>> but the descriptions do leave the impression that it should be possible to combine the two.
>> are there any well known examples?
>> best regards, from berlin,
Re: is it possible to combine kleene paths and rules?
Posted by Dave Reynolds <da...@gmail.com>.
Hi,
In principle, I could imagine it would be possible to allow property
paths in the predicate position in body patterns.
Personally I'm not aware of any work like this.
Dave
On 03/09/2019 09:40, James Anderson wrote:
> good morning;
>
> has there been any experience combining the general purpose rule engine with arbitrary length property paths?
>
>
> when i read the jena documentation, i fail to find “path" on the page
>
> https://jena.apache.org/documentation/query/property_paths.html
>
> and neither does either “rule" or “reason" appear on
>
> https://jena.apache.org/documentation/inference/
>
> but the descriptions do leave the impression that it should be possible to combine the two.
> are there any well known examples?
>
> best regards, from berlin,
>