Open Source Object Oriented Software

db4o is the world's leading open source object database for Java and .NET. Leverage fast native object persistence, ACID transactions, query-by-example, S.O.D.A object query API, automatic class schema evolution, small size (http://developer.db4o.com)

MyBatis is a first class persistence framework with support for custom SQL, stored procedures and advanced mappings. MyBatis eliminates almost all of the JDBC code and manual setting of parameters and retrieval of results. MyBatis can use simple XML or Annotations for configuration and map primitives, Map interfaces and Java POJOs (Plain Old Java Objects) to database records. Every MyBatis application centers around an instance of SqlSessionFactory. A SqlSessionFactory instance can be acquired by using the SqlSessionFactoryBuilder. SqlSessionFactoryBuilder can build a SqlSessionFactory instance from an XML configuration file, or from a custom prepared instance of the Configuration class. Building a SqlSessionFactory instance from an XML file is very simple. It is recommended that you use a classpath resource for this configuration, but you could use any InputStream instance, including one created from a literal file path or a file:// URL.

JPOX was an Apache2 licensed standards-driven Java persistence implementation. It is replaced by DataNucleus http://www.datanucleus.org

JoSQL (Java Objects SQL) provides SQL capabilities for querying, ordering and grouping of collections of Java objects (POJOs). It allows a SQL statement to be applied to the collection of objects and the matching set returned, ordered and grouped.

A complete, fast, previously commercial, JDO 1.0.1 implementation for databases, opened by Versant in 2005 and then abandoned in early 2006. The design-time code is already in Eclipse Dali. This project is the original source drop, including the runtime.

jPersist is an extremely powerful object-relational database persistence API that manages to avoid the need for configuration and annotation. jPersist uses JDBC and can work with any database supported by JDBC and any type of connection resource.

Data Access Objects for PHP5. A set of classes used for connecting to databases in PHP5. The goal is to provide PHP5 developers with a unified OO API to access databases.

The Harmoni PHP Project consists of three major components: 1) A PHP application framework and architecture, offering, e.g. authentication, DBC, file storage 2) PHP OKI OSID (service definitions) conversion system 3) PHP implementations of those OSIDs

JaQLib is a compact Java library that supports programmers in querying all sorts of collections, DBs and XML files in a compact and intuitive manner. Example: List<MyItem> result = Jaqlib.List.selectFrom(myCollection) .where(myCondition).asList()

Persitancy api simaler to Prevailer but with more transparancy and less intrusiv to how you can disign your data structure. It uses a bytecode enhancer to add needed code to have your object presited betwhen sessions.

Faraday is an object persistence, database abstraction, and forms rendering toolkit for PHP. It is designed to be database neutral, and to support very rapid development of online applications and services. Please review the Wiki for more details.

dbobj is a relational object persistence layer for PHP (it is also called an object-relational mapping layer)

dbscript is a new PHP framework for composing distributed collaborative Semantic Web applications with Microformats, OpenID and REST Web services and Qooxdoo Ajax Toolkit. install --> wget dbscript.net/latest.zip, unzip latest.zip, vi db/config.yml

Lightweight include files adding reflection capabilities to C++. Generates SQL queries and serialization routines. STL-style iterations over class members. Compile-time / run-time reflection. Based on templates and meta-programming.

ADOdb4PHP is a database abstraction layer with pagination support, written in OOP style, providing exceptions support, for PHP 5.1+ running on Windows machines.

AQAL makes easy to access data on DBs without know SQL. It implements Business Object/Manager pattern: Object maps table, builds SQL syntax, carries data; Manager performs queries, handles Objects (conveniently extended by Application Business Objects).

ADbD is Abstract Database Library. Written in PHP5. Is design for speed and simplicity.

The Adept Library contains a lightweight Java Object database for stand-alone applications. It is designed for simplicity of use, exposing a simple DTO - no need for copy logic or complex serialisation techniques. It is also a powerful general library.

B2DB is an object oriented database abstraction layer for PHP. Smart, clean and consistent - B2DB is fully object oriented and written for PHP5.

Beagle is a Java lightweight framework to fetch database entries in an optimized data structure.It can be useful in those application that need to a fast data access.It is designed around Agile Methodologies with pattern of Test Driven Development.

BizBlox is a simple to use Object Relational Mapper API for .Net. On top of the usual features you expect from an ORM it provides native support for web services using transfer objects and partial transfer objects.

BlueRiver is a base library for OR Mapping Layers in .NET/SQL server applications. Keywords are "simplicity" and "ease of use". The simple architecture and use of BlueRiver is its main advantage compared to other OR Mappers available.

Bridge To Babylon is a java object relational mapper (java ORM). It is intended to be lightweight and easy to use.

BuzzSQL is a thin layer over Java JDBC that manages automatic configuration of database connection setup, pooling, configuration, logging, and statement handling.

CLAM (Common Language Automation Machine) attempts to eliminate the rote mapping of data to objects that is prevalent in most modern development languages by breaking the bonds of relational data and providing a generic mechanism for retrieving data.