> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of marc
> fleury
> Sent: Tuesday, June 26, 2001 3:05 PM
> To: [EMAIL PROTECTED]
> Cc: [EMAIL PROTECTED]
> Subject: RE: [JBoss-dev] Shouldn't expose transaction-isolation within
> CMP
>
>
> |Please correct me if I'm wrong(I seem to be wrong about 50% of the
> |time :-),
> |but, I really don't think you should expose transaction-isolation levels
> |within CMP or in the definition of entities. This really belongs in the
> |creation of the connection pool. CMP cannot really guarantee that a
> |connection will not be shared between different entity types
> |within the same
> |transaction that use the same connection pool. Actually, I'm pretty sure
>
> which is why I am asking if the jdbc drivers support
> reconfiguration of the
> isolation level on the fly or is it pretty much a "constructor" thingy.
>
> btw if it is the good case (we can change it) then it is not up to minerva
> to do this, all minerva does is hand out the connection but it is up to a
> functional unit above it, one aware of the application accessing this
> connection. That would live in JCA, but it would need to know the
> applciation context, or it would purely live in the app server
> sphere (i.e.
> jaws getting the connection, or asking the container to do it on
> its behalf,
> whatever we can do that call somewhere, factored or not).
>
> am i making sense?
>
Danch wrote:
>
> It's on the fly, but it (generally) has to be set at the beginning of
> the transaction only.
>
So the isolation flag should really be taken out of Dain's stuff? Again, I
humbly recommend moving the transaction-isolation level to the definition of
the connection pool until a better abstraction(JCA? I know jack squat about
it..) is implemented. With that, you can attach the Entity to the
connection pool configured to your liking.
Bill
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