On JessTab-related issues, you are better off asking questions on the
[EMAIL PROTECTED] list.
(instanceof ?c1 Customer-related\ Information\ Element)
doesn't work because, in the Protege/JessTab environment, there is no
Java class Customer-related\ Information\ Element.
It seems that the following should work:
(filter (lambda (?c)(eq (class ?c) Customer-related\ Information\
Element)) ?r)
where ?r is your list of Information\ Element instances.
Samson
Dona Mommsen wrote:
Hi,
I'm trying to make a small example how to use filter in combination with
Protege. So far I haven't figured out whether I'm making a trivial
mistake in the way I'm trying to use filter, or whether there is a
particular Protigi / JessTab problem that I'm not getting.
I have the following class and subclasses in Protege
(unfortunately the names have spaces, therefore the \):
class: Information\ Element
subclasses: Customer-related\ Information\ Element
Portfolio-related\ Information\ Element
a) WITHOUT any Protege particularities: Assume that ?r is a list with of
instances of Information\ Element,
and now I would like to use filter to get all instances
Customer-related\ Information\ Element, how would the syntax look like?
b) Predicate function: Testing class With Protege and JessTab
I used (mapclass Information\ Element) to assert the facts.
?c1 is a Protege instance of Customer-related\ Information\ Element
Jess> ?c1
<Java-Object:edu.stanford.smi.protege.model.DefaultSimpleInstance>
I can get the class of a Protege instance with a JessTab function and
test for equality
Jess> (eq (class ?c1) Customer-related\ Information\ Element)
TRUE
However, the built-in Jess function instanceof creates a 'Class not
found' error
Jess> (instanceof ?c1 Customer-related\ Information\ Element)
Jess reported an error in routine instanceof
while executing (instanceof ?c1 Customer-related Information
Element).
Message: Class not found: Customer-related Information Element.
Program text: ( instanceof ?c1 Customer-related Information Element
) at line 105.
Nested exception is:
Customer-related Information Element
AFAIK this is the expected behavior for mapped Protege instances.
The JessTab function instancep just tests if an instance is a Protege
instance, thus
(filter instancep ?r)
just returns the entire list ?r.
So how do I have to express the predicate function to test the class of
a protege instance?
Thanks in advance for any help.
Dona
--------------------------------------------------------------------
To unsubscribe, send the words 'unsubscribe jess-users [EMAIL PROTECTED]'
in the BODY of a message to [EMAIL PROTECTED], NOT to the list
(use your own address!) List problems? Notify [EMAIL PROTECTED]
--------------------------------------------------------------------
--
Samson Tu email: [EMAIL PROTECTED]
Senior Research Scientist web: www.stanford.edu/~swt/
Stanford Medical Informatics phone: 1-650-725-3391
Stanford University fax: 1-650-725-7944
--------------------------------------------------------------------
To unsubscribe, send the words 'unsubscribe jess-users [EMAIL PROTECTED]'
in the BODY of a message to [EMAIL PROTECTED], NOT to the list
(use your own address!) List problems? Notify [EMAIL PROTECTED]
--------------------------------------------------------------------
