[occi-wg] Query uniqueness

[Thijs Metsch]

BTW: HTTP spec also says on user-defined mix-in creation:

    The service might reject this request if it does not allow
    user-defined \hl{Mixin}s to be created. Also on name collisions of
    the defined location path the service provider MAY reject this
    operation.

-Thijs

-----Original Message-----
From: occi-wg-bounces at ogf.org on behalf of Ralf Nyren
Sent: Mon 11.04.2011 17:59
To: Andre Merzky
Cc: occi-wg at ogf.org
Subject: Re: [occi-wg] Query uniqueness
 

On Mon, 11 Apr 2011 18:51:04 +0300, Andre Merzky <andre at merzky.net> wrote:

>> This means that with user-defined Mixins an OCCI service must refuse to
>> create a Mixin for which the specified location path already is taken.
> 
> which basically means that you need a registry of valid mixins?

You need a registry of all Mixins visible to a particular user, yes. Not
sure if that is what you meant.

A simple registry could be a hash-map with "location" as the key and the
Mixin object as value. When a user attempts to add a Mixin check the
hash-map, if location is already there, return a Bad Request.

Which Mixins are valid or not in terms of scheme + term is up to the
provider to decide (afaik).

/Ralf


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