[ZODB-Dev] Serializability

Dieter Maurer dieter at handshake.de
Tue Aug 21 13:55:50 EDT 2007


Jim Fulton wrote at 2007-8-20 10:32 -0400:
> ...
>> Application specific conflict resolution
>> would become a really difficult task.
>
>I'm sure you realize that application specific conflict resolution  
>violates serializability.

No, I do not realize this.

Assume a counter which is not read only incremented/decremented.
Its "application specific conflict resolution" ensures
that the schedule is serializable restricted to the counter value.

Things are much more complex when the counter is read (and incremented).
Usually, serializability is lost, then.



-- 
Dieter


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