[openstack-dev] [Cinder] Implementation of ABC MetaClasses

Duncan Thomas duncan.thomas at gmail.com
Mon Jun 22 18:59:45 UTC 2015

On 20 June 2015 at 02:59, John Griffith <john.griffith8 at gmail.com> wrote:

> ​Sure, I guess my question is what's the real value in this intermediate
> step.  The bulk of these are things that I'd argue shouldn't be optional
> anyway (snapshots, transfers, manage, extend, retype and even migrate).
> Snapshots in particular I find surprising to be considered as "optional".

The ABC code has not made any new things optional, it has just highlighted
them. They are de-facto optional, since not every driver implements them.
The minute that is fixed, the relevant ABC can go away. I'll see if I can
make a start.

Duncan Thomas
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