Open Source Linux 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.

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.

Now stored at https://github.com/gregorydgraham/DBvolution Available from Maven Central: nz.co.gregs.dbvolution Makes relational data easy and fast to use with semantic annotations and encapsulated datatypes. Simple declaration of a DB table: @DBTableName("mytable") public class MyTable extends DBRow { @DBColumn("numeric_code") @DBForeignKey(Code.class) private DBNumber numericCode = new DBNumber(); @DBColumn("uid_mytable") @DBPrimaryKey @DBAutoIncrement private DBNumber uidMyTable = new DBNumber(); } Easy Gets: List<MyTable> myRows = myDB.get(new MyTable()); MyTable row = myDB.getDBTable(new MyTable()).getByPrimaryKey(61176904); Natural and Outer Joins and Criteria: CarCo carCo = new CarCo(); carCo.name.isLiterally("GM"); List<DBQueryRow> results = myDB.get(carCo, new Marque()); dbQuery.addOptional(new CarModel()); Easy debugging: query.getSQLForQuery(); Simple processing: db.print(query.getAllRows()); List<Marque> marques = query.getAll

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()

A C++ library wrapping the standard ODBC C calls with many checks and using exceptions any time an error is detected.

By allowing you to simply and efficiently move data from Relational to Java Objects to XML and back again, Hydrate gives you the tools to merge, manipulate and report on data from your strategic and legacy reference data, and enterprise data warehouses.

JXmlSql is a Java database API ( MySql, Oracle, Access )that eliminates JDBC code. JXmlSql allows developers to define application and prepopulation SQL statements inside xml files. Options for query, insert, update, delete, report and prepopulation SQL.

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

PHPersistencia is a database persistence layer for PHP, offering Object Oriented interface to access the data, generating sql queries transparently for insert/update, selecting data as object collection and verifing data types without database access

A well designed and portable SQLite wrapper library for C++ You're welcome to make suggestions for design improvements. Feature requests are welcome too.

phpMyORM is a Object Relational Mapping library for PHP and MySQL. It supports basic CRUD (Create, Read, Update, Destroy) functionality from within PHP objects. It does this by creating SQL based on info describing your PHP objects and database layout.

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.

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.

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.

CRel is an object relational data store for C programs. Based on a structure data specification in XML or autogen, it generates code to store and access the data object. It supports indexing, constraints, memory management and serialization.

Catnap is a lightweight Java persistence layer which stores and retrieves objects from an Oracle database using PL/SQL packages.

.NET library (written in C#) for developers writing data access code that is less cumbersome than straight ADO.NET and is almost entirely database platform independent for most database platforms.