Berkeley DB XML Reference Guide: New and Changed Features in 2.0

Berkeley DB XML Reference Guide:
Upgrading Berkeley DB XML Applications

New and Changed Features in 2.0

The number of new features added in Berkeley DB XML Release 2.0 has led to a new API, as well as new database format. These require application changes in order to take advantage of the features of 2.0. The major features and changes visible to an application include:

XQuery support
Introduction of an XmlManager object to manage XmlContainers, and act as a factory object for operation contexts, including queries
Addition of a node storage container type
XmlDocument metadata handling improvements
Flexible interfaces for getting XML documents in and out of Berkeley DB XML
Extended indexing, including additional types, metadata indices, and unique indices.
General API improvements

A good way to become familiar with the new interface is to examine some of the 2.0 example programs. The next sections of this document use before/after code comparisons for common Berkeley DB XML operations to demonstrate how a 1.2.X program must change to work with 2.0.