String interning (WAS: SAX2/Java: Towards a final form)

[Miles Sabin]

David Brownell wrote,
> Nope -- I want to see it _exposed_ but not mandated.  It's
> actually OK if parsers do this only for their own benefit,
> but it's more useful if apps can tell when it's being done.

OK, how does that pan out? Querying for String.intern() support 
via a getFeature() call? That'd work, but you need to spell it 
out a bit more, because the naive way of taking advantage of 
interning in a ContentHandler looks disgusting,

  if(hasInterning)
  {
    if(name == "elem1")
      //
    else if(name == "elem2")
      //
    else
      // etc
  }
  else
  {
    if(name.equals("elem1"))
      //
    else if(name.equals("elem2"))
      //
    else
      // etc
  }

A much nicer way of doing it would be,

  if(reader.getFeature(... interning ...))
    reader.setContentHandler(handlerAssumingIntern);
  else
    reader.setContentHandler(handlerNotAssumingIntern);

  reader.parseDocument(...);

I could live with this.

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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