[Hibernate] new locking API - Question:

[Gavin K. <ga...@ap...>]

A question: does the locking API need to distinguish between write locks and
upgrade locks? At the moment I'm considering them both to be "exclusive"
locks, though I know thats not quite the semantics of FOR UPDATE. Actually,
have I got it all wrong and I should use

NONE
READ
UPGRADE
UPGRADE_NOWAIT
WRITE

as the lock modes?