[infinispan-dev] Conditional cache operations useless with Optimistic locking?

[Jim Crossley]

FWIW, I do have write skew check enabled, along with versioning (simple)
enabled, and isolation level of REPEATABLE_READ.

Thanks,
Jim

Mircea Markus <mmarkus at redhat.com> writes:

> On 8 Mar 2013, at 12:50, Sanne Grinovero wrote:
>
>> I think using conditional operations is very useful even with
>> optimistic locking: the single conditional operation might not make
>> sense, but a transaction might include more operations and some of
>> these operations might depend on the result of the conditional
>> operation.
>> 
>> I'd expect the conditional operation to only return the value based on
>> current state (a prediction), and the transaction would fail if this
>> value is no longer valid at commit time. So no locks need to be taken
>> during the evaluation.
> that's only if you have write skew check enabled. 
>
> Cheers,