[vos-d] new vos concept: listen conditions

Karsten Otto otto at inf.fu-berlin.de
Wed Jan 31 04:52:53 EST 2007


Am 30.01.2007 um 20:50 schrieb Peter Amstutz:

> [...]
> c) For large updates (say over 4-8k), instead of immediately  
> sending out
> new property data, the vobject sends out an invalidation message (I've
> changed, you're out of date) and the remote side has the option of
> deciding whether to go out and fetch the updated value.  The reasoning
> being, beyond a certain point the extra round trip time to fetch the
> value is greatly outweighed by the cost of sending out data that  
> may not
> be used at all.
>
If you are already using an update subscription language, why not put  
in a clause supporting this case? "Only send value updates if  
property size < n, send change notifications otherwise"?

KAO



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