This article presents two major JDO specifications: the Sun Microsystems JDO and the open source Castor JDO. Jacek Kruszelnicki discusses their relative pros and cons, and their similarities and differences.

By Chris Richardson. Learn how to use Java Data Objects (JDO) to accelerate development and test domain model outside of the application server and without a database.

Java Data Objects (JDO) is neither a silver bullet nor without merit. But its most important contribution may be to wake developers up to the coming paradigm shift: from database to objectbase, a place where not only data but data and behaviors are st...

This expert perspective lays it on the line: Exolab's Castor JDO product does not support the JDO standard.

In this scathing response to Don Bales' recent critique of Java Data Objects, David Jordan offers proof that JDO does not regard SQL as a bad thing, yields shorter and simpler code, and is vendor-neutral.

Implements the JDO and JPA specifications, providing transparent persistence for Java objects to a relational database. By Oracle, Corp. [Commercial]