What about making this idempotent?

On Tue, Apr 7, 2015 at 7:56 AM, Stephen Mallette <[email protected]>
wrote:

> I'd like to enforce some behavior on those Graph implementations that will
> support "threaded transactions".  Recall that a threaded transaction is one
> where multiple threads can interact with the same transactional context.
> In TP3 you can create one with:
>
> tg = g.tx().create()
>
> which returns a Graph instance that is ready for multiple threads to
> operate on it.  But what does the following line mean where we try to
> create a threaded transaction from a graph enabled with a threaded
> transaction?
>
> tg.tx().create()
>
> Should that be allowed and if so, what would that mean?  In my mind, i
> think we shouldn't allow it. I think the behavior should be to just throw
> an exception and the supportsThreadedTransaction feature method should
> return false.  I'd like to write tests to enforce that case so that we
> achieve consistency across implementations.
>
> Does anyone has thoughts on another way that this should work? or does this
> approach just make sense?
>
> Thanks,
>
> Stephen
>

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