Hi.

Does the Hibernate Tools support PostgreSQL data domains for reverse engineering?
http://www.postgresql.org/docs/8.1/static/sql-createdomain.html

Cheers

I'm almost sure it doesn't.

Mostly because extending the set of available types on the DB side is utterly unsupported by JDBC; you'd need proprietary extensions for JDBC to even load such fields, and I am not aware of any support from the Hibernate run-time libary for this kind of extensibility (Hibernate's "user-defined types" allow extending the set of transferrable types on the Java side, not on the DB side).
Hibernate Tools, then, would not have anything to work with even if it tried.

It is not entirely impossible that the Postgres dialect does have support for that anyway. I'd expect it to be severely limited though.