Hi Chetan
There are some demo programs in src/samples that demonstrate the use of
XPath, in particular LinkChecker finds all <a> elements in a document and
XPathGrep is a kind of grep-like tool that uses XPath on XML documents.
There's a quick overview here:-
http://dom4j.org/guide.html
http://dom4j.org/guide.html#Powerful%20Navigation%20with%20XPath
If you need any help learning XPath there's a great tutorial here:-
http://www.zvon.org/xxl/XPathTutorial/General/examples.html
If you wish to compare 2 documents or any other nodes (Elements, Attributes
etc) then there is a utility class called NodeComparator in the
org.dom4j.util package.
http://dom4j.org/apidocs/org/dom4j/util/NodeComparator.html
It implements the java.util.Comparator interface so can be used with all the
Java Collections Framework classes.
http://java.sun.com/j2se/1.3/docs/api/java/util/Comparator.html
To use it explicitly you can use the compare() method such as:-
SAXReader reader = new SAXReader();
Document doc1 = reader.read( "foo.xml" );
Document doc2 = reader.read( "bar.xml" );
NodeComparator comparator = new NodeComparator();
if ( comparator.compare( doc1, doc2 ) == 0 ) {
System.out.println( "The documents are equal" );
}
else {
System.out.println( "Documents are not equal" );
}
As you can see from the JavaDoc the NodeComparator can compare document
fragments or individual nodes too (such as Elements or Attributes).
James
----- Original Message -----
From: "Chetan Sanghi" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, July 03, 2001 8:51 PM
Subject: [dom4j-user] From Chetan Sanghi
> Hi
>
> I want to write a jUnit test case for comparing two XML documents and I
want
> to use dom4j API for its XPath advantages. It will be great if somebody
can
> let me know where to start like some detailed examples of dom4j using
XPath
> features and comparing two XML documents.
>
> --Chetan
> _________________________________________________________________
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