[ZODB-Dev] Discrete synchronization with ZEO

[Arve Knudsen]

I must say I'm not an expert on all things ZODB/ZEO, but what I meant by  
ownership is the management of persistent objects. The cache management  
logic of ZODB can the way I understand it "ghostify" objects, what happens  
if I insert an object from one ZODB (using ClientStorage) into another  
(using local storage)? Which of the databases will control the  
ghostifying/unghostifying of the object? What I basically want to achieve  
is to be able to close the ClientStorage, and still be able to access  
these objects (without access to state in the ClientStorage).

Arve

On Tue, 25 Apr 2006 22:25:05 +0300, Dieter Maurer <dieter at handshake.de>  
wrote:

> Arve Knudsen wrote at 2006-4-25 17:32 +0300:
>> ...
>> How should I ensure local
>> ownership of objects from the ClientStorage, by deep copying them?
>
> The ZODB does not have any "ownership" concept.
>
> Zope, on the other hand has two: executable ownership
> and "local role" ownership.
>
>   Executable ownership is usually changed by copying.
>   "Local role" ownership is not. If you need a "Local role"
>   ownership change, you must do it explicitely -- and recursively.
>
>