Thanks David! That was exactly the type of response I was seeking and
clears everything up.
-={ Kyle }=-
In somnis veritas
--- "Harkness, David" <[EMAIL PROTECTED]> wrote:
> Kyle Korndoerfer penned
> > Can someone expand upon the meaning of the various ejb.transaction
> > types? I understand what they mean, but am unsure where each of the
> > types applies. The online documentation doesn't expand upon any of
> > them.
> >
> > For instance, what's the difference between "Required" &
> "Mandatory"?
> > In a literal sense, these would seem to be one-and-the-same, but
> there
> > must be a difference since they are both listed.
>
> Required will use an existing transaction if present or begin and
> commit/rollback a new one if not.
>
> Mandatory requires an existing transaction and will not begin its
> own.
>
> RequiresNew will always begin a new transaction. Note that the
> container
> will suspend the current transaction, if there is one, until this
> method
> completes.
>
> Supports will use an existing transaction if present but does not
> require one.
>
> NotSupported will suspend an existing transaction while the method
> executes.
>
> Never will fail if called within the context of an existing
> transaction.
>
> To clarify, the difference between Mandatory and Required is what
> happens when the method is called outside the scope of an existing
> transaction. Required will begin a transaction and Mandatory will
> throw
> an exception.
>
> --
> David Harkness Sony Pictures
> Digital
> Senior Software Engineer 310.482.4756
> [EMAIL PROTECTED]
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