On Tue, Jun 8, 2010 at 6:23 AM, Laurence Rowe <l...@lrowe.co.uk> wrote:
> On 8 June 2010 09:45, Chris Withers <ch...@simplistix.co.uk> wrote:
>> Hi All,
>> What is this attribute actually used for?
>> I see it present on IDataManager but I notice that zope.sqlalchemy's
>> SessionDataManager doesn't have this attribute, with no apparent ill effect.
> transaction_manager = zope.interface.Attribute(
> """The transaction manager (TM) used by this data manager.
> This is a public attribute, intended for read-only use. The value
> is an instance of ITransactionManager, typically set by the data
> manager's constructor.
> This seems to be used only in the tests, I guess it would be useful if
> you were using multiple transaction managers in a single thread. I've
> now added it to zope.sqlalchemy's data manager.
I'm in favor of removing it from the interface.
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