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Xalan XPath Question

 
Ranch Hand
Posts: 67
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Gievn the below XML File:
<?xml version="1.0"?>
<!DOCTYPE book SYSTEM "bookgram.dtd">
<book>
<title>Professional Java Programming</title>
<author>Brett Spell</author>
<publisher>Wrox Press</publisher>
<tableOfContents showPageNumbers="Yes">
<tocEntry>Printing</tocEntry>
<tocEntry>Cut and Paste</tocEntry>
<tocEntry>Drag and Drop</tocEntry>
</tableOfContents>
<title>Java 2</title>
<author>Lemay</author>
<publisher>SAMS</publisher>
<tableOfContents showPageNumbers="Yes">
<tocEntry>Printing</tocEntry>
<tocEntry>Cut and Paste</tocEntry>
<tocEntry>Drag and Drop</tocEntry>
</tableOfContents>
</book>

What Xpath statement would I use to get the publisher of the Java 2 book?
 
Greenhorn
Posts: 23
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This is not a very good XML document for representing a number of books. You root element <book> makes it seem like it is trying to represent one book when in fact it is being used to represent many. XML parsing relies on parent/child relationships. In here there is no inherent relationship between a book and its publisher because the <book> element contains many publishers.
Try a document like this:
<books>
<book>
<title>Professional Java Programming</title>
<author>Brett Spell</author>
...
</book>
<book>
<title>Java2</title>
<author>Lemay</author>
</book>
</books>

Originally posted by Rob Bass:
Gievn the below XML File:
<?xml version="1.0"?>
<!DOCTYPE book SYSTEM "bookgram.dtd">
<book>
<title>Professional Java Programming</title>
<author>Brett Spell</author>
<publisher>Wrox Press</publisher>
<tableOfContents showPageNumbers="Yes">
<tocEntry>Printing</tocEntry>
<tocEntry>Cut and Paste</tocEntry>
<tocEntry>Drag and Drop</tocEntry>
</tableOfContents>
<title>Java 2</title>
<author>Lemay</author>
<publisher>SAMS</publisher>
<tableOfContents showPageNumbers="Yes">
<tocEntry>Printing</tocEntry>
<tocEntry>Cut and Paste</tocEntry>
<tocEntry>Drag and Drop</tocEntry>
</tableOfContents>
</book>

What Xpath statement would I use to get the publisher of the Java 2 book?



------------------
Jeremy Crosbie
Co-Author of Professional Java XML
 
Leverager of our synergies
Posts: 10065
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... and then your XPath statement would be
"books/book[title='Java2']/publisher"
 
Ranch Hand
Posts: 2378
MySQL Database Spring Java
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Good reasoning Jeremy....I liked it!
------------------
Muhammad Ashikuzzaman (Fahim)
Sun Certified Programmer For Java 2 Platform
--When you learn something, learn it by heart!
 
Rob Bass
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Thanks guy, and yes I agree not a good XML file. I guess the driving force for XPath statements would be a Schema since it defines the XML?
 
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