[ZODB-Dev] [Ann] "ReadCommitted" transaction isolation level
Dieter Maurer
dieter@handshake.de
Sat, 22 Mar 2003 22:14:21 +0100
Steve Alexander wrote at 2003-3-22 15:27 +0200:
>
> > Another option is to somehow introduce inter-record consistency checking
> > in ZODB. I wonder how that would work.
>
> That sounds like something the Zope 3 dependency system would be good
> for. Except, the dependency would be handled at the application level
> rather than at the ZODB level.
I think that would be enough.
At least the typical examples for the need of serializability
affect only a small set of objects and not the myriads
of intermittent objects accessed to reach these objects.
Implementing a guarantee that another transaction did
not interfere with respect to a small set of objects
will be much more efficiently implementable that the
full serializability.
Dieter