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(a)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(a)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(a)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(a)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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