naveena kamsali wrote:hi friends,
I have developed a simple sax program. But i didn't understand why we are writing DefaultHandler methods(startElement(),endElement() and characters()) in DefaultHandler block. Can anybody know about this. Please tell me.
package com.sax;
import java.io.IOException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
public class Simple_sax{
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
try {
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser saxParser = factory.newSAXParser();
DefaultHandler handler = new DefaultHandler()
{
boolean bfname = false;
boolean blname = false;
boolean bnname = false;
boolean bsalary = false;
public void startElement(String uri, String localName,
String qName, Attributes attributes)
throws SAXException {
System.out.println("Start Element :" + qName);
if (qName.equalsIgnoreCase("FIRSTNAME")) {
bfname = true;
}
if (qName.equalsIgnoreCase("LASTNAME")) {
blname = true;
}
if (qName.equalsIgnoreCase("NICKNAME")) {
bnname = true;
}
if (qName.equalsIgnoreCase("SALARY")) {
bsalary = true;
}
}//startElement
public void endElement(String uri, String localName,
String qName)
throws SAXException {
System.out.println("End Element :" + qName);
}
public void characters(char ch[], int start, int length)
throws SAXException {
if (bfname) {
System.out.println("First Name : "
+ new String(ch, start, length));
bfname = false;
}
if (blname) {
System.out.println("Last Name : "
+ new String(ch, start, length));
blname = false;
}
if (bnname) {
System.out.println("Nick Name : "
+ new String(ch, start, length));
bnname = false;
}
if (bsalary) {
System.out.println("Salary : "
+ new String(ch, start, length));
bsalary = false;
}
}//characters
};
saxParser.parse("sax.xml",handler);
} catch (Exception e) {
e.printStackTrace();
}
}
}