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protegeproject / swrlapi

Java API for working with the SWRL rule and SQWRL query languages
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sqwrl and reasoners #29

Closed ChipNowacek closed 7 years ago

ChipNowacek commented 7 years ago

Noob question: Does SQWRL do its own inferencing work or does it somehow rely on an active reasoner (hermit, pellet etc)

martinjoconnor commented 7 years ago

The SWRLAPI includes an implementation of an OWL 2 RL-based reasoner, which supports SWRL and SQWRL:

https://github.com/protegeproject/swrlapi/wiki/OWL2RLTab

Hermit, Pellet, and other reasoners support SWRL but they do not support SQWRL.

FYI, the Protege mailing list is a good place for further questions if you intend to spend more time with Protege:

http://protege.stanford.edu/support.php#mailingListSupport

ChipNowacek commented 7 years ago

Thank you. While I do participate on the Protege mailing list, I asked my question here because I'm trying to add query capacity to Tawny OWL. Maybe my thinking is flawed. I will ask there first next time.

Again, thank you.

martinjoconnor commented 7 years ago

Either place will do, though you might get more general responses on the mailing list.

While SQWRL is conceptually just SWRL with a custom built-in library there are some complexities to consider if you were to develop an implementation.

You could start here to get a sense of how the SWRLAPI implements the SQWRL query language:

https://github.com/protegeproject/swrlapi/blob/master/src/main/java/org/swrlapi/sqwrl/SQWRLQueryEngine.java