O'Reilly logo

Real World XML by Steven Holzner

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Filtering XML Documents

The previous example displayed the entire document, but you can be more selective than that through a process called filtering. When you filter a document, you extract only those elements you're interested in.

Here's an example named ch11_04.java. In this case, I'll let the user specify what document to search and what element name to search for like this, which will display all <ITEM> elements in ch11_01.xml:

%java ch11_04 ch11_01.xml ITEM 

I'll start this program by creating a new class, FindElements, to make the programming a little easier. All I have to do is pass the document to search and the element name to search for to the contructor of this new class:

 import javax.xml.parsers.*; import org.w3c.dom.*; public ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required