parsing large XML using SAX in java

Question

I am trying to parse the stack overflow data dump, one of the tables is called posts.xml which has around 10 million entry in it. Sample xml:

Answer 1

"StartElement" Sax Event permits to process a single XML ELement.

In java code you must implement this method

public void startElement(String uri, String localName,
    String qName, Attributes attributes)
    throws SAXException {

    if("row".equals(localName)) {
        //this code is executed for every xml element "row"
        String id = attributes.getValue("id");
        String PostTypeId = attributes.getValue("PostTypeId");
        String AcceptedAnswerId = attributes.getValue("AcceptedAnswerId");
        //others two
        // you have your att values for an "row" element
    }

 }

For every element, you can access:

1. Namespace URI
2. XML QName
3. XML LocalName
4. Map of attributes, here you can extract your two attributes...

see ContentHandler Implementation for specific deatils.

bye

UPDATED: improved prevous snippet.