Re: Java and XML

From:
Tom Anderson <twic@urchin.earth.li>
Newsgroups:
comp.lang.java.programmer
Date:
Sun, 4 Oct 2009 22:43:14 +0100
Message-ID:
<alpine.DEB.1.10.0910042228300.21268@urchin.earth.li>
On Sun, 4 Oct 2009, markspace wrote:

"Easiest to use" and "versatile" are opposite ends of a very long axis,
imo. The default "versatile" XML parser is probably JAXP and SAX.

import javax.xml.parsers.*;

SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser saxParser = factory.newSAXParser();
XMLReader parser = saxParser.getXMLReader();

parser.setContenHandler( myContentHandler );
parser.parse( "myfile.xml" );


Out of interest, is there any reason not to write:

XMLReader parser = SAXParserFactory.newInstance().newSAXParser().getXMLReader()

? Do we need to have the factory and the saxParser around? Most of the
examples i've seen do exactly what you did (perhaps because, like any good
programmer, your control, C and V keys were involved in the above code),
but i don't see why. I also don't see why it's so convoluted to get a
parser, but i consider that beyond the wot of man.

However, is there any reason for Sun not to write a method like:

public void parse(InputSource input, ContentHandler handler) {
  // possibly also taking an ErrorHandler!
  XMLReader parser = SAXParserFactory.newInstance().newSAXParser().getXMLReader()
  parser.setContenHandler(handler);
  parser.parse(input);
}

And put that somewhere really visible in javax.xml?

tom

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