[owl-s] R: OWLKnowledgeBase crashes
g.fenza at tin.it
Mon Jun 5 17:52:51 EDT 2006
I need to elaborate owl type associated to owl-s loaded services, so I need
to investigate on IOPE (Input, Output,
) services information expecially
on owl parameter type. With pellet I think that I can ask to knowledgebase
if one owl type is subtype of another, supertype or other, isnt it?
Da: Demetris G [mailto:demetris at ece.neu.edu]
Inviato: lunedì 5 giugno 2006 23.41
A: G. Fenza
Oggetto: Re: [owl-s] OWLKnowledgeBase crashes
I am not sure about your issue (sorry) but I have a separate question if
you don't mind.
You said that you are using OWL-S API with the Pellet Reasoner to read and
on semantic services. What kind of elaboration are you working on ? What do
G. Fenza wrote:
Sorry for my bad English.
I am using OWL-S Api with Pellet reasoner to read and elaborate a lot of
semantic services (400-500 about).
Unfortunately in the same execution thread I read these services at boot of
application, in a loading phase, so in other time I need to loop on services
loaded but when I try to execute kb.getServices() method on my
OWLKnowledgeBase instance I have a NullPointerException. This happens in the
same execution thread and in also on other call on kb object, for example
when I try to call isSubType(subType, superType) method or other (in this
casa with Not Implemented Yet exception message). Fortunately after more
attempts sometimes all function so I think that is my use mode of library
incorrect or there is thread that run but I dont wait.
I hope that my question is understandable, if you need another information I
can give major details.
OWL-S mailing list
OWL-S at lists.mindswap.org
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the OWL-S