Handling namespace strings and prefixes with SAX

So far, I've described how to use simple API for XML to parse a simple…XML file. That is an XML file without namespaces.…This XML file has simple element names such as customers, customer, and so on.…And no name spaces or namespace prefixes.…When you work with this sort of XML file,…when you get to one of the element handlers,…start element or end element, you'll get…three arguments named uri, localName, and qName.…

And with this sort of simple XML file, both…the uri and the localName will be blank strings.…The element name is contained in the qName argument and…that's why we're assigning it here to the current element variable.…But now let's see what happens when we try to parse an XML file…that does have namespaces.…I'll use this file, NSCustomers.xml, which is in…the Data folder of the data provider package.…This is pretty much the same data.…It has the same data structure, but it now has a namespace.…

The namespace string is here and it's assigned to a prefix of cust, c-u-s-t.…I'll go to my class, read XML with SAX.java, and…