On Wed, Jan 29, 2003 at 09:12:55AM +1100, [EMAIL PROTECTED] wrote:
> Why not just do
>
> Session.find("from o in class MyClass where o.id=?", .....)
>
> thats basically equivalent to Session.load(), but throws no exceptions....
Okay.
> >I imagine the tricky bit is that the different JDBC drivers throw
> >different types of exceptions? But perhaps the hibernate adapters could
> >abstract out those differences, for the important types of errors.
>
> Yes, that is one problem.
>
> The other problem is that the Session is heavily re-entrant. So the only
> way to guarantee atomicity of operations is to "back up" the state of the
> Session before each invocation. I implemented this in an older version but
> discovered that the performance cost was absolutely prohibitive (it was
> a much larger overhead than you would expect).
Alright, I'll take your word for it :-). Although it would be nice to be
to be able to recover from constraint violations and the like more
gracefully than one currently can, at least for operations involving a
single row. Maybe something will present itself down the line.
Thanks,
Chris
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