hi gary,
an extent defines subclasses in the repository. these subclasses may reside in their own tables or they may share a common table. each of the subclasses is self-contained (it's mapped on one table only).
the super-reference is used to split up a class on multiple tables. each of the tables is mapped to a super-class.
hth jakob
Gary wrote:
Any takers on this one? Thanks to all for any help...
Gary
I have read the advanced O/R mapping document, but
am
still a bit confused about the meanings, usage and interaction of extents and the "super" keyword. Can someone give me a quick explanation?
Thanks, Gary
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