[Standards-JIG] JEP 60: Requesting Items for a Node

Jacek Konieczny jajcus at bnet.pl
Tue May 24 09:16:34 UTC 2005

On Mon, May 23, 2005 at 11:22:42AM -0500, Peter Saint-Andre wrote:
> > IMHO there should be three independent groups:
> > 1. publishers
> > 2. subscribers
> > 3. readers
> > 
> > Subscriber could be automatically a reader (allowed to fetch items), but
> > not the other way. Subscribing to a node just to fetch one, already
> > published, node may be suboptimal (the subscribing entity could be
> > flooded with item it doesn't want).
> So a "reader" would be able to retrieve items at will, but the service
> would not push items to the reader? That seems much like a subscriber
> who has set a delivery flag to "false". So perhaps the best approach
> would be to create a subscription option for this, rather than to create
> a new class of readers. I suggest a boolean field of "pubsub#deliver"
> whose default value is true (notifications are sent) but which may be 
> set to false (no notifications sent), in the pubsub#subscribe_options 

Yes, that would solve the problem. That could be misleading (subscriber
who is not really subscribed), but will be backward-compatible with
existing implementation, which is very important now.


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