Daniel P. Berrange
dan at berrange.com
Tue Nov 15 02:31:07 PST 2005
On Mon, Nov 14, 2005 at 08:36:46PM +0100, Tako Schotanus wrote:
> Havoc Pennington wrote:
> >On Mon, 2005-11-14 at 12:54 +0000, Daniel P. Berrange wrote:
> >>b) Just tack a number onto the end of the interface name, getting
> >> something like 'org.example.Music.Player2',
> >> 'org.example.Music.Player3',
> >> etc, etc.
> >This is what most existing frameworks such as COM do fwiw. Another
> >convention is to put "X" in there, like "XPlayer" or "javax."
> Actually Microsoft wasn really sure how to do it and have changed their
> mind several times duringg the lifetime of COM.
> So you will see things like:
> and several other versions. Microsoft tends to add new interfaces either
> with a number (like DOMDocment2) or with the Ex extension (DOMDocumentEx
> for example) when they _add_ new functionality. The COM system had no
> way of extending interfaces with new backward compatible methods!
If we go for interface renaming, then when adding details on to the spec, we
ought to put in a recommendation about a preferred scheme for naming interfaces
with version numbers, to give at least the appearance of consistency :-)
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