Real World XML

Working with SAX

This first example shows how to work with SAX. In this case, I'll use SAX to count the number of <CUSTOMER> elements in the same example we saw in the previous chapter. Here's that file, renamed ch12_01.xml for this chapter:

Listing . ch12_01.xml

<?xml version = "1.0" standalone="yes"?> <DOCUMENT> <CUSTOMER> <NAME> <LAST_NAME>Smith</LAST_NAME> <FIRST_NAME>Sam</FIRST_NAME> </NAME> <DATE>October 15, 2003</DATE> <ORDERS> <ITEM> <PRODUCT>Tomatoes</PRODUCT> <NUMBER>8</NUMBER> <PRICE>$1.25</PRICE> </ITEM> <ITEM> <PRODUCT>Oranges</PRODUCT> <NUMBER>24</NUMBER> <PRICE>$4.98</PRICE> </ITEM> </ORDERS> </CUSTOMER> <CUSTOMER> <NAME> <LAST_NAME>Jones</LAST_NAME> <FIRST_NAME>Polly</FIRST_NAME> </NAME> <DATE>October 20, 2003</DATE> <ORDERS> ...