Hibernate version:
2.1.7 - thinking about 2.1.8

Name and version of the database you are using:
Oracle 9iR2

Today my question(s) is the following:

- Is it possible to map a version or timestamp column of a Table A to a column of Table B, which is a one-to-one (primary key) associated table of Table A?

- How/When to assign the id-value of the one-to-one association, which is unidirectional?

And - unfortunately again, as I didn't find any answers, studying the reference manual, hibernate in action or the forum:

- Is it possible to map primary key associations from several tables to the same sub-table? I don't need a bidirectional association, so the sub-table won't have - in my understanding - an embedded one-to-one mapping element! But how to declare the necessary id element as "foreign" properly?

Thanks for any hints/suggestions/help

kind regards
K:)