SAX2: Namespace Processing and NSUtils helper class

[Miles Sabin]

Tim Bray wrote,
> As a consequence of this, I have suggested that in SAX2, we 
> use "" to represent the absence of a namespace rather than 
> null.  Then you'll always be able to do 
>
> if (ns.equals(myNamespace))
>
> rather than
>
> if ((ns != null) && ns.equals(myNamespace))

I don't think that's enough of a justification, because so
long as myNamespace is known to be non-null (surely the most
common case) we could represent the absence of a namespace as
null and write,

  if(myNamespace.equals(ns))

I think the Java idiom,

  if(knownNonNull.equals(possiblyNull))

is widely known enough to make this reasonable.

Cheers,


Miles

-- 
Miles Sabin                       Cromwell Media
Internet Systems Architect        5/6 Glenthorne Mews
+44 (0)20 8817 4030               London, W6 0LJ, England
msabin at cromwellmedia.com          http://www.cromwellmedia.com/


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