[occi-wg] Regarding Mixin relation and "accumulation" of attributes

[Andy Edmonds]

Ok this reflects what I had understood, I hope! :p

The case that my question arose out of was the following:

 - user creates a user defined mixin (UDM), which is used later to group
resources.
 - the formulation of the UDM mixin includes a related mixin (a security
group mixin).
 - when the request is received by the server side the fact that there is a
rel value signals that additional processing may be required (in this case,
yes) to satisfy the completion of the request.

Andy
andy.edmonds.be


On Mon, Apr 23, 2012 at 16:57, Ralf Nyren <ralf at nyren.net> wrote:

>
> Andy, you asked about whether a Mixin related to another Mixin will
> inherit the attributes.
>
> Please look at OCCI Core page 9:
>
> "Mixin Relationships A Mixin instance MAY be related to another Mixin
> instance for type classification
> purposes. For example a set of operating system templates, implemented as
> Mixin instances, could be related
> to an “OS-template” Mixin in order to help identification.
>
> Attributes and Actions defined by different Mixin instances are combined
> when Mixin relationships are present.
> ^^^^^^^^^^^
>
> Therefore a resource instance associated with a particular Mixin will
> receive the additional capabilities defined
> by any related Mixin instances as well as those defined by the Mixin
> associated."
>
> Does this cover what you were after? Maybe it is unclear that
> "capabilities" refer to attributes as well?
>
> regards, Ralf
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