Hi Michael,
I tried the following example with Xerces-J 2.9.1.
XML document is:
<root>
<abc>hello</abc>
<pqr/>
<uvw/>
</root>
Source program is:
public class SAXempl extends DefaultHandler {
..............
..............
public static void main(String[] args) {
SAXParserFactory spf = SAXParserFactory.newInstance();
SAXParser parser = spf.newSAXParser();
parser.parse(new File(filename), this);
}
public void startElement(java.lang.String uri,
java.lang.String localName,
java.lang.String qName,
Attributes attributes) {
System.out.println("-----start element-----");
System.out.println("#"+uri+"#");
System.out.println("#"+localName+"#");
System.out.println("#"+qName+"#");
System.out.println("!-----start element-----!");
}
public void endElement(java.lang.String uri,
java.lang.String localName,
java.lang.String qName) {
System.out.println("------end element------");
System.out.println("#"+uri+"#");
System.out.println("#"+localName+"#");
System.out.println("#"+qName+"#");
System.out.println("!------end element------!");
}
public void characters(char[] ch,
int start,
int length) {
System.out.println("------characters------");
System.out.println((new String(ch)).trim());
System.out.println("!------characters------!");
}
I have omitted the imports and other class skeleton for brevity.
When I run this program on the above XML file, I get following output:
-----start element-----
##
##
#root#
!-----start element-----!
------characters------
root>
<abc>hello</abc>
<pqr/>
<uvw/>
</root>
!------characters------!
-----start element-----
##
##
#abc#
!-----start element-----!
------characters------
root>
<abc>hello</abc>
<pqr/>
<uvw/>
</root>
!------characters------!
------end element------
##
##
#abc#
!------end element------!
------characters------
root>
<abc>hello</abc>
<pqr/>
<uvw/>
</root>
!------characters------!
-----start element-----
##
##
#pqr#
!-----start element-----!
------end element------
##
##
#pqr#
------characters------
root>
<abc>hello</abc>
<pqr/>
<uvw/>
</root>
!------characters------!
-----start element-----
##
##
#uvw#
!-----start element-----!
------end element------
##
##
#uvw#
!------end element------!
------characters------
root>
<abc>hello</abc>
<pqr/>
<uvw/>
</root>
!------characters------!
------end element------
##
##
#root#
!------end element------!
I am a bit perplexed by the following output from 'characters' event:
root>
<abc>hello</abc>
<pqr/>
<uvw/>
</root>
Moreover, if I don't do trim() on the String object, I get lot of
whitespaces in the output.
Could you kindly explain this behaviour by Xerces.
On Jan 26, 2008 12:27 AM, Michael Glavassevich <[EMAIL PROTECTED]> wrote:
> I suppose the SAX spec doesn't forbid that but Xerces doesn't do that.
> You'll get a startElement() event followed by an endElement() event. The
> only exception to that is if you're doing schema validation and the
> validator inserted a default element value. Then you'll get a characters()
> event.
--
Regards,
Mukul Gandhi
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