[Zope] Re: Zeo and conflict resolution (was "suddenly confused")
dieter at handshake.de
Thu Jan 31 13:52:04 EST 2008
Ricardo Newbery wrote at 2008-1-30 12:24 -0800:
>Has anyone given thought to maybe providing a more general class with
>conflict resolution in the core distribution?
There can be no *general* class with conflict resolution.
Conflicts usually are fatal. Precise knowledge about the intended
use is necessary to determine whether and how a conflict can be resolved.
Take a look at the "Length" class. It resolves all conflicts in
a way compatible with maintaining the length of a data structure.
However, you must *NOT* use it to assign unique integer tickets
as it may return the same value in different threads.
Without conflict resolution you would get a conflict when
different threads take a ticket concurrently; with the
"Lenght" conflict resolution, the tickets are no longer unique.
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