The ZooDB Object Database
The ZooDB Object Database by Tilmann Zäschke, January 2015. ZooDB (http://www.zoodb.org/) is a pure Java open source ODBMS supporting the JDO 3.0 API. It started out as a private project of an experimental ODBMS,...
Category: Object Databases – Free Software
Eclipse Foundation: Indigo-CDO Model Repository
Eclipse Modeling: The CDO Model Repository 4.0 integrates with several NoSQL databases such as Objectivity/DB, MongoDB, and db4o. LINK
OO7J benchmark
Pieter van Zyl and Espresso Research Group. OO7J is a Java version of the original OO7 benchmark (written in C++) from Mike Carey, David DeWitt and Jeff Naughton = Univ Wisconsin-Madison. The original benchmark...
eXTreme Java framework
Intersystems Download Caché eXTreme for Java (Registration required): provides an API to store and retrieve structured data over JDBC (JDBC over JNI), unstructured data and Java Objects. LINK.
Caché Post-relational Database
Intersystems A free, fully-functional, non-expiring, single-user version of Caché. LINK
Rasdaman
Peter Baumann, Jacobs University An open-source array DBMS with an OQL-style query language and ODMG-conformant C++ and Java APIs for retrieving and manipulating multi-dimensional arrays (rasters) of unlimited size. LINK
Perst. Open Source, Object-Oriented Embedded Database
Perst Open Source, Object-Oriented Embedded Database Complete Perst software package, with source code. Includes both Perst for Java (including Perst Lite for Java ME) and Perst for .NET, as well as links to the...
McObject
Download an open source / evaluation copy of the Perst™ embedded database for Java or .NET. LINK
GLASS a free ODBMS for the Seaside web framework
GemStone Systems GLASS: GemStone, Linux, Apache, Seaside, and Smalltalk. LINK
EyeDB Object Oriented Database Management System
Advanced object model, object definition language based on ODMG ODL, an object query and manipulation language based on ODMG OQL and programming interfaces for C++ and Java. LINK