SAX2: summary of Namespace-support arguments

james anderson James.Anderson at mecomnet.de
Mon Dec 20 13:15:38 GMT 1999


there may well be reasons to bind the origianl literal prefix to the "name
instance". this is not one of them. serialization prettiness and speed can
well be viewed as diametrically opposed. where speed is of the utmost, then
all that matters is that serializer guarantee requisite prefix uniqueness and
the correctness of prefix/uri bindings. to this end, a storage model which
binds a unique token to a namespace instance and binds the namespace instance
to the "name instance" suffices.

where the namespace instance also statically binds its uri, this form of
"name" obviates the need for a directly binding the uri to the name.

where prettiness is important, an optional interface to the serializer can
well specify the prefixes to be used for the respective namespaces. in either
case, no "figuring out" is required.

James Clark wrote:
> 
> 3. I want to use DocumentHandler not just an interface between a parser
> and an application but between an application and a serializer.
> Serialization can in fact be as performance critical as parsing.  A
> serializer can do it's job much more efficiently and easily if it has
> the prefix available rather than having to figure it out from the
> prefix/namespace bindings in effect. Although the combination of XML 1.0
> DTDs and namespaces is a problematic, many users want to use namespaces
> and still have their documents been XML 1.0 valid; this may apply to the
> documents they are creating with a DocumentHandler.  For a serializer
> that uses a DocumentHandler as its interface to be able to do this, it
> has to have prefix information.
> 
> James
> 
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