db4o is an open-source, object-oriented database from db4objects. It is embeddable, in the sense that the entire db4o engine is supplied as a single library that links into your application. Versions ...

A database that maintains a set of separate, related files (tables), but combines data elements from the files for queries and reports when required. The concept was developed in 1970 by Edgar Codd, ...

Like it or not, data is an integral part of any application, even cool object-oriented ones. Everything stops at the persistence layer, where Java developers traditionally have had to write complex ...