[ome-users] General questions
fontenay at hpcrd.lbl.gov
Thu Mar 24 19:19:52 GMT 2005
FYI, I just installed the latest stable version, 2.4.0, on SUSE Linux
9.1 and it went well after several iterations of dropping the old 2.2
ome db and removing files from /opt/OME-IMAGES. All required packages
appear to have been installed from the previous 2.2 install.
My first question is this: how are users expected to be able to use SQL
without going through whatever OME interfaces exist? Is this envisaged,
at all? Regarding table creation, I know new database tables are created
from semantic type definitions. I'm somewhat fine with that step if I
could be shown an example of m:n relationship that made sense to me. If
I look at plates and screens, for example, I see plate ST and screen ST
and their respective tables. Now since there is an m:n relationship, so
I see plate_screen ST, fine, of course. What I don't see are key
references in the database table plate_screen_map to plates and screens.
I find this a bit disorienting. Are such constraints maintained in the
software infrastructure? This puts in doubt being able to do inserts, e.g..
My second question is this: where can I find an example of java OME
API code that would, say, allow me to query and update the database on
some m:n relationship of semantic types?
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