Re: ACIDity of Prevayler 2.6

I doubt this.

Atomicity: Transactions are applied all-or-nothing.

Say a transaction is supposed to make 2 updates and fails after doing first
one. First update isn't rollbacked so it's not all-or-nothing. If food
taster were in place, failed transaction should never be executed on actual
system and it would actually be all-or-nothing.

Just my 2 cents,
Hakan


On Wed, Nov 14, 2012 at 5:20 PM, Justin T. Sampson <[email protected]>wrote:

> Yes, Klaus is absolutely right. Prevayler's ACID properties had nothing to
> do with the food taster. Prevayler remains as ACID as ever.
>
> Atomicity: Transactions are applied all-or-nothing.
>
> Consistency: Transactions obey Java language semantics.
>
> Isolation: Transactions execute serially, so they can never see other
> transactions in progress.
>
> Durability: Transactions are journaled before execution.
> On Nov 14, 2012 6:10 AM, "Karl Wettin" <[email protected]> wrote:
>
>> Since transaction filtering (atomicity) was removed I would have to say
>> it's no longer correct to call Prevayler ACID-compliant.
>>
>> We should write something about this in the release notes of 2.6. Why
>> people don't consider this to be a problem, perhaps include a bit of text
>> about how failing transactions are stored to the journal and why that's a
>> good idea.
>>
>> Anyone feel like summing that up in a paragraph or two?
>>
>>
>>                         karl
>>
>>
>>
>>
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>
>
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