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Object–relational mapping (ORM, O/RM, and O/R mapping tool) in computer science is a programming technique for converting data between a relational database and the memory (usually the heap) of an object-oriented programming language.
Hibernate ORM (or simply Hibernate) is an object–relational mapping [2]: §1.2.2, [12] tool for the Java programming language. It provides a framework for mapping an object-oriented domain model to a relational database .
Apache Cayenne, open-source for Java; Apache OpenJPA, open-source for Java; DataNucleus, open-source JDO and JPA implementation (formerly known as JPOX) Ebean, open-source ORM framework; EclipseLink, Eclipse persistence platform; Enterprise JavaBeans (EJB) Enterprise Objects Framework, Mac OS X/Java, part of Apple WebObjects
Java: Open source: Eclipse Public License Version 1.0 (EPL) and Eclipse Distribution License Version 1.0 (EDL) 2.4.2 / July 4, 2013 JPA 2.0: Entity Framework Core.NET Open Source: Apache License 2.0 6.0 / November 10, 2021 Hibernate: Java: Open source: GNU Lesser General Public License: 5.4.31 / April 30, 2021 JPA 2.0: MyBatis/iBATIS: Cross ...
The Java Persistence API specifies persistence only for relational database management systems by focusing on object-relational mapping (ORM). Some JPA providers support other database models , though this is outside the scope of JPA's design.
Technologies like Java Persistence API and Enterprise JavaBeans come built into application servers and can be used in applications that use a Java EE application server. Commercial products such as TopLink are available based on object–relational mapping (ORM).
Atlas ORM (data mapper, table data gateway, query builder, and PDO wrapper) [3] Doctrine2 Object Relational Mapper (ORM) and the Database Abstraction Layer [4] Cycle ORM (PHP DataMapper ORM and Data Modelling Engine) [5] CakePHP ORM (PHP DataMapper ORM, query builder, and PDO wrapper)
Object–role modeling (ORM) is used to model the semantics of a universe of discourse. ORM is often used for data modeling and software engineering . An object–role model uses graphical symbols that are based on first order predicate logic and set theory to enable the modeler to create an unambiguous definition of an arbitrary universe of ...