XML tree models
The W3C specifications for XSLT, XQuery, and XPath model an XML document as a tree. This data model is known as XDM, and the nodes of an XDM tree are known as XDM nodes.
In Saxon, all XDM nodes are represented internally using the interface
NodeInfo, which is exposed
in the public API using the class
XdmNode. Saxon provides a number
of implementations of the
NodeInfo interface, including implementations
that wrap third-party tree models.
In this section: