Michael Neale wrote: 
I am not aware of peasimistic locking use being very common. When  
people want it, it's generally cause the GUI suggests it (eg bob wants  
to view a file, but Alice has it locked)
With optimistic locking we can just submit our update and it fails if something else updted the recorded in the mean time - doing a counter comparison. With pessemistic we have to download the record first, compare them, and then upload. As what we are comparing in a binary blob, we want to avoid pulling that from the db.

Mark
Sent from my phone.

On 13/11/2009, at 10:27 AM, Salaboy <salaboy@gmail.com> wrote:

  
I suppose that the versión field its being used. So, the default must
be optimistic

- Ing. Mauricio Salatino -

On Nov 12, 2009, at 9:43 PM, Michael Neale <michael.neale@gmail.com>
wrote:

    
I thought optimistic locking was the default ? Or do you mean you  
know
how to switch, just that it doesn't work?


Sent from my phone.

On 13/11/2009, at 8:16 AM, Salaboy <salaboy@gmail.com> wrote:

      
I Will take a look on that
Sent from my iPhone

On Nov 12, 2009, at 7:33 PM, Mark Proctor <mproctor@codehaus.org>
wrote:

        
Any hibernate guru's out there? Currently the persistence stuff  
uses
pessematic locking, which is slow, in theory we should be using
optimistic locking, but I couldn't get it to work. Anyone want to
give
that a go?

Mark

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