XML by Example

String stringDelivery =

(String)attributes.get(“delivery”);

int delivery = Integer.parseInt(stringDelivery);

comparingMachine.compare(currentVendor.getText(),

price,

delivery);

}

break;

}

Lessons Learned

Listing 8.4 is typical for a SAX application. The SAX event handler pack-

ages the data in the format most appropriate for the application. It might

have to build a partial tree (in this case, using

LeafElement) in the process.

The application logic (in ComparisonMachine) is totally unaware of XML. As

far as it is concerned, the data could be coming from a database or a

comma-delimited file.

Because of this clean-cut separation between the application logic ...