RE: XPathEvaluator in SAXON?

> What I was looking for is some class that takes in a Docment 
> object and 
> a XPathExpress object, then evaluate the document against the 
> xpath and 
> then return a collection of matching Node objects, sothat I 
> can change 
> the value of the nodes and save them back to the document file.

Saxon's two native tree implementations (the standard tree and the tiny
tree) are both read-only - they are designed for XSLT processing, where
node-level updates are not a requirement, and making the structures
read-only allows higher XSLT performance.

The only mutable tree structure that Saxon supports is the JDOM
structure.

I believe that some Saxon users have written drivers that allow Saxon to
be used with third-party DOM implementations, but there's no such driver
included with the product.
> >
> Great, but how do I specify which implementaion to use? 

In the case of JDOM, you build the tree using JDOM interfaces.

In the case of Saxon's two tree implementations, you can control it
using a property of the TransformerFactory.

Michael Kay


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