Thanks for your favor , I have read in the OWL file successfully with TDB as
the way you told me .But there is another problem coming. But I tried all the
TDB API,can't found out how to read a already parsed TDB databse into a
OntModel, so I ask for help again, thanks a lot sincerecly. I pick the file in
the attachment.
Another problem confusing me is that . As we all know ,
com.hp.hpl.jena.ontology.OntModel.listClasses() can list all the class
belonging to the OWL file , including the anonymous class ,such as
-7b93d8f7:135a90fe2c4:-7d69 what I want to know is that whether this API
list all the anonymous classes in the whole file? Since I will also get
anonymous classes, when list the objects of individual or list the resource of
classes . I don't want to miss information , so store all the anonymous when
my project meets during processing.However ,this way makes sure the integrity
of the data, while bring a lot redundant data about the anonymous classes. I
want to know that ,whether OntModel.listClasses() can list all the anonymous
classes. If it can ,I have no need to parse the anonymous classes after this
step of OntModel.listClasses().
There still a question ,when I create a RDFS file with given information ,all
the classes can be created correctly. But there seems some problems on the
Individual creation,this leads to that the new created RDFS file contain all
the classes without any individual belonging to the new created file.I paste my
code here
OntModel NewModel = null;
Individual NewSubject =
NewModel.createIndividual(IndividualURI,NewModel.createResource(ClassURI));
Property NewProperty = NewModel.createProperty(PredicateURI);
Literal NewObject = NewModel.createResource(ObjectURI);
NewModel.add(NewSubject, NewProperty, NewObject);
I am not sure whether these code can describe my opinion clearly :)
The last question is that ,when I list all the class of the OntModel with the
API listClasses() , It seems that the root class Thing have't been listed. My
aim is to create a RDFS file from the root class ,while the Thing is the root
class of all OWL file. If this API can't list out the Thing class ,how could I
create the Thing class as the root when creating a new file,and then add all
the other classes as its direct subclasses or indirect subclasses.If it can't
be achieved as what I want , could you tell me why?
Best Regards, Thanks for your patient help very much again !!!
your,Lucas
