This is a list of well-known

object–relational mapping Object–relational mapping (ORM, O/RM, and O/R mapping tool) in computer science is a programming technique for converting data between type systems using object-oriented programming languages. This creates, in effect, a "virtual object databa ...

software. It is not up-to-date or all-inclusive.

Java

* Apache Cayenne, open-source for Java *

Apache OpenJPA OpenJPA is an open source implementation of the Java Persistence API specification. It is an object-relational mapping (ORM) solution for the Java language, which simplifies storing objects in databases. It is open-source software distributed un ...

, open-source for Java *

DataNucleus DataNucleus (formerly known as Java Persistent Objects JPOX) is an open source project (under the Apache 2 license) which provides software products around data management in Java. The DataNucleus project started in 2008 (the JPOX project started ...

, open-source JDO and JPA implementation (formerly known as JPOX) * Ebean, open-source ORM framework *

EclipseLink EclipseLink is the open source Eclipse Persistence Services Project from the Eclipse Foundation. The software provides an extensible framework that allows Java developers to interact with various data services, including databases, web services, ...

, Eclipse persistence platform *

Enterprise JavaBeans Jakarta Enterprise Beans (EJB; formerly Enterprise JavaBeans) is one of several Java APIs for modular construction of enterprise software. EJB is a server-side software component that encapsulates business logic of an application. An EJB web co ...

(EJB) *

Enterprise Objects Framework The Enterprise Objects Framework, or more commonly simply EOF, was introduced by NeXT in 1994 as a pioneering object-relational mapping product for its NeXTSTEP and OpenStep development platforms. EOF abstracts the process of interacting with a re ...

, Mac OS X/Java, part of Apple

WebObjects WebObjects was a Java web application server and a server-based web application framework originally developed by NeXT Software, Inc. WebObject's hallmark features are its object-orientation, database connectivity, and prototyping tools. Ap ...

Hibernate Hibernation is a state of minimal activity and metabolic depression undergone by some animal species. Hibernation is a seasonal heterothermy characterized by low body-temperature, slow breathing and heart-rate, and low metabolic rate. It most ...

, open-source ORM framework, widely used *

Java Data Objects Java Data Objects (JDO) is a specification of Java object persistence. One of its features is a transparency of the persistence services to the domain model. JDO persistent objects are ordinary Java programming language classes ( POJOs); there ...

(JDO) *

JOOQ Object Oriented Querying jOOQ Object Oriented Querying, commonly known as jOOQ, is a light database-mapping software library in Java that implements the active record pattern. Its purpose is to be both relational and object oriented by providing a domain-specific lang ...

(jOOQ) *

Kodo __NOTOC__ Kodo may refer to: Japan * ''Kōdō'' (香道), ceremonial appreciation of incense * Nippon Kodo (日本香堂), an incense company * Kodō (taiko group) (鼓童), a ''taiko'' drumming group * Kodo-kai (弘道会), a yakuza criminal orga ...

, commercial implementation of both

and

Java Persistence API Jakarta Persistence (JPA; formerly Java Persistence API) is a Jakarta EE application programming interface specification that describes the management of relational data in enterprise Java applications. Persistence in this context covers three ...

TopLink Oracle TopLink is a mapping and persistence framework for Java developers. TopLink is produced by Oracle and is a part of Oracle's OracleAS, WebLogic, and OC4J servers. It is an object-persistence and object-transformation framework. TopLink p ...

by Oracle

iOS

Core Data Core Data is an object graph and persistence framework provided by Apple in the macOS and iOS operating systems. It was introduced in Mac OS X 10.4 Tiger and iOS with iPhone SDK 3.0.Apple, "Core Data Tutorial for iPhone OS". It allows data orga ...

Apple An apple is an edible fruit produced by an apple tree (''Malus domestica''). Apple fruit tree, trees are agriculture, cultivated worldwide and are the most widely grown species in the genus ''Malus''. The tree originated in Central Asia, wh ...

for

Mac OS X macOS (; previously OS X and originally Mac OS X) is a Unix operating system developed and marketed by Apple Inc. since 2001. It is the primary operating system for Apple's Mac (computer), Mac computers. Within the market of ...

and

iOS iOS (formerly iPhone OS) is a mobile operating system created and developed by Apple Inc. exclusively for its hardware. It is the operating system that powers many of the company's mobile devices, including the iPhone; the term also includes ...

.NET

* Base One Foundation Component Library, free or commercial * Dapper, open source *

Entity Framework Entity Framework (EF) is an open source object–relational mapping (ORM) framework for ADO.NET. It was originally shipped as an integral part of .NET Framework, however starting with Entity Framework version 6.0 it has been delivered separately ...

, included in .NET Framework 3.5 SP1 and above *

iBATIS iBATIS is a persistence framework which automates the mapping between SQL databases and objects in Java, .NET, and Ruby on Rails. In Java, the objects are POJOs ( Plain Old Java Objects). The mappings are decoupled from the application logic b ...

, free open source, maintained by

ASF ASF may refer to: Arts and entertainment * Alabama Shakespeare Festival, a drama festival * ''Asimov's Science Fiction'', a U.S.-based English-language science fiction magazine containing SF stories Science and technology Biological * A ...

but now inactive. *

LINQ to SQL Language Integrated Query (LINQ, pronounced "link") is a Microsoft .NET Framework component that adds native data Query language, querying capabilities to List of CLI languages, .NET languages, originally released as a major part of .NET Framework ...

, included in .NET Framework 3.5 *

NHibernate NHibernate is an object–relational mapping (ORM) solution for the Microsoft .NET platform. It provides a framework for mapping an object-oriented domain model to a traditional relational database. Its purpose is to relieve the developer from a ...

, open source *

nHydrate nHydrate is an object-relational mapping (ORM) solution for the Microsoft .NET platform providing a framework for a relational database to be mapped to .NET objects. It is designed to alleviate the drudgery software developers experience writin ...

, open source * Quick Objects, free or commercial

Objective-C, Cocoa

* Enterprise Objects, one of the first commercial OR mappers, available as part of

, object graph management framework with several persistent stores, ships with Mac OS X and iOS

Perl

* DBIx::Class

PHP

Laravel Laravel is a free and open-source PHP web framework, created by Taylor Otwell and intended for the development of web applications following the model–view–controller (MVC) architectural pattern and based on Symfony. Some of the features ...

, framework that contains an ORM called "Eloquent" an ActiveRecord implementation. *

Doctrine Doctrine (from la, doctrina, meaning "teaching, instruction") is a codification of beliefs or a body of teachings or instructions, taught principles or positions, as the essence of teachings in a given branch of knowledge or in a belief system ...

, open source ORM for PHP 5.2.3, 5.3.X., 7.4.X Free software (MIT) *

CakePHP CakePHP is an open-source web framework. It follows the model–view–controller (MVC) approach and is written in PHP, modeled after the concepts of Ruby on Rails, and distributed under the MIT License. CakePHP uses well-known software engineeri ...

, ORM and framework for PHP 5, open source (scalars, arrays, objects); based on database introspection, no class extending *

CodeIgniter CodeIgniter is an open-source software rapid development web framework, for use in building dynamic web sites with PHP. Popularity CodeIgniter is loosely based on the popular model–view–controller (MVC) development pattern. While controller c ...

, framework that includes an ActiveRecord implementation *

Yii Yii is an open source, object-oriented, component-based MVC PHP web application framework. Yii is pronounced as "Yee" or i:and in Chinese it means "simple and evolutionary" and it can be an acronym for "Yes It Is!". History Yii started ...

, ORM and framework for PHP 5, released under the BSD license. Based on the ActiveRecord pattern * FuelPHP, ORM and framework for PHP 5.3, released under the MIT license. Based on the ActiveRecord pattern. *

Laminas Laminas Project (formerly Zend Framework or ZF) is an open source, object-oriented web application framework implemented in PHP 7 and licensed under the New BSD License. The framework is basically a collection of professional PHP-based packag ...

, framework that includes a table data gateway and row data gateway implementations *

Propel Propel or propelling may refer to: * Propulsion, to push forward or drive an object forward * Samsung A767 Propel, a mobile phone ** Samsung i627 Propel Pro * Propel Fitness Water, a drink from the makers of Gatorade * Propel (PHP), an object-rela ...

, ORM and query-toolkit for PHP 5, inspired by

Apache The Apache () are a group of culturally related Native American tribes in the Southwestern United States, which include the Chiricahua, Jicarilla, Lipan, Mescalero, Mimbreño, Ndendahe (Bedonkohe or Mogollon and Nednhi or Carrizaleño an ...

Torque, free software, MIT * Qcodo, ORM and framework for PHP 5, open source * QCubed, A community driven fork of Qcodo * Redbean, ORM layer for PHP 5, for creating and maintaining tables on the fly, open source, BSD * Skipper, visualization tool and a code/schema generator for PHP ORM frameworks, commercial

Python

* Django, ActiveRecord ORM included in Django framework, open source *

SQLAlchemy SQLAlchemy is an open-source SQL toolkit and object-relational mapper (ORM) for the Python programming language released under the MIT License. Description SQLAlchemy's philosophy is that relational databases behave less like object collectio ...

, open source, a Data Mapper ORM *

SQLObject SQLObject is a Python object-relational mapper between a SQL database and Python objects. It is experiencing community popularity, and forms a part of many applications (e.g., TurboGears). It is very similar to Ruby on Rails' ActiveRecord in oper ...

, open source *

Storm A storm is any disturbed state of the natural environment or the atmosphere An atmosphere () is a layer of gas or layers of gases that envelop a planet, and is held in place by the gravity of the planetary body. A planet retains an atmos ...

, open source (LGPL 2.1) developed at

Canonical Ltd. Canonical Ltd. is a UK-based privately held computer software company founded and funded by South African entrepreneur Mark Shuttleworth to market commercial support and related services for Ubuntu and related projects. Canonical employs staff ...

Tryton ''Tryton'' is a three-tier high-level general purpose computer application platform on top of which is built an Enterprise resource planning (ERP) business solution through a set of Tryton modules. The three-tier architecture consists of the Tr ...

, open source *

web2py Web2py is an open-source web application framework written in the Python programming language. Web2py allows web developers to program dynamic web content using Python. Web2py is designed to help reduce tedious web development tasks, such a ...

, the facilities of an ORM are handled by the DAL in web2py, open source *

Odoo Odoo is a suite of business management software tools including, for example, CRM, e-commerce, billing, accounting, manufacturing, warehouse, project management, and inventory management. During Odoo experience which took place in Belgium i ...

– Formerly known as OpenERP, It is an Open Source ERP in which ORM is included.

Ruby

(inactive) *

ActiveRecord In software engineering, the active record pattern is an architectural pattern. It is found in software that stores in-memory object data in relational databases. It was named by Martin Fowler in his 2003 book ''Patterns of Enterprise Application ...

DataMapper In software engineering, the data mapper pattern is an architectural pattern. It was named by Martin Fowler in his 2003 book ''Patterns of Enterprise Application Architecture''. The interface of an object conforming to this pattern would include f ...

Smalltalk

* TOPLink/Smalltalk, by Oracle, the Smalltalk predecessor of the Java version of TOPLink

References

{{DEFAULTSORT:List Of Object-Relational Mapping Software Object-relational mapping software *

Java

iOS

.NET

Objective-C, Cocoa

Perl

PHP

Python

Ruby

Smalltalk

See also

References