Jaxup is a Java library that defines an interface
to update XML documents, through which clients can
work without knowledge of the exact object model
that the document uses. The interface is called
Updater, and the idea behind it is the same as
with Jaxen's Navigator interface. In addition, an
implementation of xmldb.org's proposed XUpdate
specification is provided. Jaxup supports DOM,
JDom, and DOM4J.
