[ZODB-Dev] Read conflicts.

[Chris McDonough]

FWIW, I've found places in the code where we check for a ConflictError 
by identity (e.g. "t is ConflictError"), so in order to add new 
ConflictError types, we'd need to go fix these places.



Anthony Baxter wrote:
>>>>Chris McDonough wrote
>>>>
>>I'd like to be able to tell read conflicts apart from write conflicts 
>>for debugging and statistical purposes.  To do so, I'd like to add a 
>>ReadConflictError to POSException which subclasses ConflictError.  Does 
>>anyone see a problem with me just going ahead and doing that and 
>>checking it in on the trunk?
>>
> 
> Nope. But then, you knew that I liked it already :)
> 
> More detailed exceptions from ConflictError good. I also like the
> idea of the storages supporting some sort of "I tried to resolve the
> conflict, but failed" exception. 
> 
> Anthony
> 
> 


-- 
Chris McDonough                    Zope Corporation
http://www.zope.org             http://www.zope.com
"Killing hundreds of birds with thousands of stones"