Re: ACIDity of Prevayler 2.6

ACID properties may depend on each other but they are still different
properties.

I think the point is that different classes of errors affect different
> aspects. Resiliency in the face of power fail is about atomicity - you
> won't write half a txn. Resiliency in the face of other errors can be about
> consistency. For example, consider concurrency conflicts - are they
> flagging a break of atomicity or consistency ?
>

IMHO, recovering the transaction after power fail is durability. Running
that transaction atomically is atomicity, but that has no direct relation
with power fail or recovery.

A concurrency conflict is itself neither an atomicity nor consistency
break. If it happens in the middle of a transaction and framework dont take
changes back, then it's an atomicity break but this is not related to the
nature of concurrency conflict. From a higher perspective it's just a type
of failure that breaks framework's atomicity. Same applies to consistency.

Hakan

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