Reference Material

XML:DB API: Reference for the XML:DB API, an API which is used to make use of an XML Database. The API is defined by the XML:DB initiative.
JDK 1.1 API Reference: The Java 1.1.8 API Reference, software built using the Java 1.1.x classes/methods can run painlessly in virtually all JVMs on virtually any platform.
XQJ API Reference: XQuery For Java API Reference (version 1.0 - 15th October 2007).