Java
- ActiveJDBC - Java implementation of Active Record pattern, inspired by Ruby on Rails
- Cayenne, Apache, open source for Java
- Kodo, commercial implementation of both Java Data Objects and Java Persistence API
- Torque, an object-relational mapper for Java
- Athena Framework, open source Java ORM, native support for multitenancy SaaS and remoting to Adobe Flex
- Carbonado, open source framework, backed by Berkeley DB or JDBC
- Ebean, open source ORM framework
- EclipseLink, Eclipse persistence platform
- Enterprise Objects Framework, Mac OS X/Java, part of Apple WebObjects
- Hibernate, open source ORM framework, widely used
- MyBatis, formerly named iBATIS, has .NET port
- iBATIS, maintained by ASF, inactive as of 2010
- Java Data Objects (JDO)
- Java Object Oriented Querying (jOOQ)
- Java Persistence API (JPA)
- DataNucleus, open source JDO and JPA implementation
- JPOX, open source JDO 2 reference implementation
- Object Relational Bridge (Apache OJB), an object-relational mapper for Java; as of 2011/01/16, Apache ObJectRelationalBridge was retired
- OpenJPA, Apache, open source, supports JPA API
- ORMLite, lightweight open source framework supporting JDBC and Android
- TopLink by Oracle
- QuickDB ORM, open source ORM framework (GNU LGPL)
- ObjectDB
- EJB, Enterprise Java Beans
Read more about this topic: List Of Object-relational Mapping Software