[ZODB-Dev] Re: Multi-Threading Transactions

[Jeremy Hylton]

On 10/13/05, Chris Spencer <gmane.20.evilspam at spamgourmet.com> wrote:
> I understand that, but my point was when you call transaction.commit(),
> you don't necessarily know what you're committing. One thread may be
> ready to commit. Another may not be. If one thread calls
> transaction.abort(), they may be aborting changes made by another
> thread. You'd have to write a complicated coordination mechanism to
> handle multi-threaded transactions to be sure. If threading is limited
> to connections, then wouldn't in make sense if transactions were as well?

The default transaction manager maintains a separate transaction for
each thread.  When you call transaction.commit() from thread T1, it
commits the transaction for thread T1.  It has no effect on other
thread's running transactions.

Jeremy