Re: [topicmaps-comment] mapping topic maps on a relation database

[Jack Park <jackpark@thinkalong.com>]

At 05:02 PM 4/17/2002 +0200, Lars Marius Garshol wrote:

>* Thomas B. Passin
>|
>| An association would map to a row in a table,and each role would map
>| to a column in the role.  Of course, this would only make sense if
>| there were many associations built to the same template.

Associations in Nexist are built by the XTMAssociation class itself and 
thus are essentially "built to the same template."

><snip>
>| This leaves open three points:
>|
>| 1) How to determine the primary key of the table
>
>I would make an ID column for the table. It gets too messy otherwise.

Nexist creates a unique ID for each object, and uses an ID column.


>| 2) How to handle multiple role-playing topics with the same role
>
>That one is tricky. It's also tricky in querying, regardless of how
>you store your topic map. I need to work this one out, but haven't had
>time yet.

I'm sure I need to think about this one.
<snip>
Good questions.

Cheers
Jack