Re: Java and XML

=?ISO-8859-1?Q?Arne_Vajh=F8j?= <>
Sun, 04 Oct 2009 18:13:18 -0400
Tom Anderson wrote:

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 =

? 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.

There is obviously no reason in the quoted code.

But some may want to use:


 > 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 =

And put that somewhere really visible in javax.xml?

The authors of Java spend time learning about GoF patterns.

They want us to do the same.

And not go for something simple.


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