Computers

Integrates Java objects, XML documents, SQL relational databases and LDAP directories in a unified model that allows information to be exchanged, persisted and manipulated in a variety of ways. Supports JDO. [Open Source, BSD-like]

A home page for JSR-000012, Java Data Objects.

The Proposed Final Draft of the JDO 1.1 specification for object-relational mapping on the Java platform.

Implementation of Sun's JDO specification (JSR 12), designed to support transparent persistence using any JDBC-compliant database. [Open source, Apache Software License]

Provides interface-based persistence to RDBMSs while allowing developers to focus on the object model, not the physical layer. It implements many of the interfaces specified by JDO. [Open source, GPL]

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. (February 01, 2003)

This expert perspective lays it on the line: Exolab's Castor JDO product does not support the JDO standard. (December 04, 2002)

An in-depth look at using Castor's marshalling engine to do data binding of Java objects to tables, rows, and columns in an SQL database. (October 02, 2002)

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. (May 29, 2002)

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