[protege-discussion] Attaching data to classes and querying it

[Terence Fitzgerald]

Thanks, Samson, for your quick reply.  I clearly hadn't gotten to
metaclasses yet, but I'll be using them now!

Best,
Terence

Terence,

You need to create your own metaclasses so that you can attach 
class-specific information and query for them. See [1] and subsequent 
pages on creating metaclasses and instances of metaclasses. The basic 
idea is that a class is an instance of some metaclass, just as normal 
instances are instances of classes. So you can treat classes as 
instances if they are instances of appropriate metaclasses.

[1]http://protege.stanford.edu/doc/users_guide/classes/metaclasses/metac
lass_intro.html

-- 
Samson Tu                                   email: swt at stanford.edu
Senior Research Scientist                   web: www.stanford.edu/~swt/
Center for Biomedical Informatics Research  phone: 1-650-725-3391
Stanford University                         fax: 1-650-725-7944