[jdev] Cancelling an iq query

[Ralph Meijer]

On Mon, Aug 29, 2005 at 03:09:52PM -0700, Ralph Giles wrote:
> On Mon, Aug 29, 2005 at 08:12:09PM +1000, Trejkaz wrote:
> 
> > The difficulty with that approach, of course, is that it can't possibly with 
> > with existing, standard IQ queries.  I don't suppose we need some kind of <iq 
> > type='cancel'/> where you pass the same ID of the query you want to cancel...
> 
> This has the same problem that you don't know if the response you get 
> failed because it failed, or because you cancelled it. I guess we could
> create a matching xmpp error element.

Well, failing is easy, there are lots of stanza errors for that.
Cancelling could yield a <undefined-condition/> stanza error, along with
an application specific condition element (see 9.3.2 of RFC 3920).

> No one's commented on whether my idea of sending another 'set' with the 
> same iq id before the initial response comes back is reasonable.

Ok, here is my opinion: don't do that. Jabber assumes the pattern iq-get
or iq-set followed by a iq-error or iq-result response, where the 'id'
attributes match up.

-- 
Groetjes,

ralphm