Perst: an open source, object-oriented Java embedded database
Lucene is a high-performance, scalable, search engine technology.
The first part of this article takes you through an example of using Lucene to index all the text files
in a directory and its subdirectories. The remainder provides examples of analysis and searching.
July 30, 2004
How to do the most common database manipulations from servlets and JSP pages.
June 20, 2003
Cayenne Object Relational Framework is an OpenSource project offering a full featured Java object relational framework and GUI tools. It has an active and truly open community of developers and users.