I think the COMET call is the way forward, I just never heard of COMET
before today, but it is exactly the same concept as the IDLE command in
IMAP. The problem with a callback via XMPP or otherwise is that the
server has to be able to address and call the client, who may be behind
a NAT firewall or a proxy, may disconnect altogether and may move about.
I like XMPP, but it is a whole other protocol to handle and runs on
another port so is another potential firewall issue.
Alan.
Chris Anderson wrote:
Alan,
I was thinking along similar lines (that it would be cool to have real
time notification when a new row is added to a view). This would be
useful if the view corresponded to a business action that needs to
occur, etc. One could just make a view with the creation time of the
documents as the key, and create an RSS/Atom feed of the top of the
view.
That solution isn't as flexible as actually having a callback on the
view server, which would fired each time map() is called. Perhaps this
general-purpose view callback could use Jabber / XMPP?
Chris
On Thu, Mar 20, 2008 at 3:54 AM, Alan Bell
<[EMAIL PROTECTED]> wrote:
Hi,
the Apple iPhone does push email by supporting IMAP IDLE. Basically what
this does is the client starts a regular IMAP session with the server
checking email etc. It then calls the IDLE command, the server does not
respond to this and complete the request until a new mail is delivered.
When the IDLE command completes the client goes through all the regular
IMAP commands to check for a new mail in the inbox.
I would like to see an idle query option on couchdb views. This would
only return when the view index is changed (it doesn't need to be
accurate, it doesn't matter much if it returns when there is actually no
update to the view)
With this a client could maintain a rendering of a view updating it
automatically in real time if it wanted to.
Does this make sense?
Alan.
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Alan Bell
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