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Re: Input on request for link relation

From: Kris Zyp <kris@sitepen.com>
Date: Fri, 11 Sep 2009 07:04:02 -0600
Message-ID: <4AAA4AC2.7030508@sitepen.com>
To: Sam Johnston <samj@samj.net>
CC: Jan Algermissen <algermissen1971@mac.com>, jpanzer@acm.org, Lisa Dusseault <lisa.dusseault@gmail.com>, Atom-Syntax Syntax <atom-syntax@imc.org>, ietf-http-wg@w3.org
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Sam Johnston wrote:
> Jan et al,
>
> In line with comments I've made in other threads I think it makes
> sense for us to limit link relation discussions to the generic
> relation itself rather than any specific implementation of it. I
> imagine the pubsubhubbub
> <http://groups.google.com/group/pubsubhubbub> Google Group (blind
> copied as it requires subscription to post) is the appropriate forum
> for your [no doubt legitimate] concerns regarding the protocol.
>
> In terms of the relation, I think the description could be improved
> by dropping references to entries, Atom and RSS. It is conceivable
> for example that someone would want to be notified of an update to
> an HTML page (I'm thinking about this currently for status updates
> to HTML renderings of virtual machine resources) or indeed some
> other arbitrary resource. If we [continue to] allow relations to be
> bound to protocols in spite of the availability of content types
> and/or URI relations which are fit for the purpose we're going to
> back ourselves into a corner before we know it.
>
> Accordingly I propose the following description:
>
> /Description: A URI for a "hub" that allows clients to register for
> real-time updates to the resource./
>
> The PuSH(?) group may want to consider using a URI relation and/or
> dedicated content type in addition to the generic "hub" relation.
>
We (Dojo toolkit) have been using REST Channels [1] for clients to
receive real-time notifications of resource updates. Could/should we
use the "hub" relation for resources to reference the URI that
Dojo/clients connect to for updates? And if so it seems like "updates"
or "notifications" would be a more generic, fitting term than "hub"
(but "hub" isn't bad).

[1] http://cometdaily.com/2008/11/12/using-rest-channels-in-dojo/
Thanks,

- --
Kris Zyp
SitePen
(503) 806-1841
http://sitepen.com
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Received on Friday, 11 September 2009 13:05:01 GMT

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