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hi everybody, dear todd:
i like the relational approach but:
how do you assign unique values for the slot 'self'
?
is there any mechanism supported directly by jess (factid
?)
or do you have some class that
calculates the unique ids ?
this seems important to me e.g. when
asserting facts
dynamically during inference
process.
thanks
peter
..........
..........
Anyhow,
it helps to think like a relational database designer.
Using objects, your
template might look something like:
(deftemplate
Person
(field self)
(field name)
(field organization)) ; relates to
an Organization
(deftemplate Organization
(field self)
(field
name)
(field location))
You
then write rules that look like relational database queries.
For instance,
to get a Person's Organization you might do something like....
(defrule
person-organization
(Person (organization ?org) ....)
(Organization
(self ?org) .....)
=>
...)
It sounds like JESS has a way to
store a Java object reference in a field,
which does roughly the same thing
as the self field I put into every object.
Hope this helps.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
eTranslate, Inc. The Power of Language
Todd Blanchard main
+1.415.970.7119
Chief Technology Architect fax
+1.415.371.0008
http://www.etranslate.com/
500 Treat Street, Suite 100,
San Francisco, California 94110, U.S.A.
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