Java Open Source Projects Directory

Castor is an open source data binding framework for Javatm?. It's basically the shortest path between Java objects, XML documents and SQL tables. Castor provides Java to XML binding, Java to SQL persistence, and then some more.

• Category: Persistence
• License:  BSD License
• HomePage: http://www.castor.org/

It is a feature-rich implementation of the persistence part of Enterprise Java Beans 3.0, also known as the Java Persistence API (JPA), and is available under the terms of the Apache Software License. OpenJPA can be used as a stand-alone POJO persistence layer, or it can be integrated into any EJB3.0 compliant container and many lightweight frameworks.

• Category: Persistence
• License:  Apache Software License
• HomePage: http://openjpa.apache.org/

Cayenne is a powerful, full-featured Java Object Relational Mapping framework. It is open source and completely free. One of the main Cayenne distinctions is that it comes with cross-platform modeling GUI tools. This places Cayenne in the league of its own, making it a very attractive choice over both closed source commerical products and traditional "edit your own XML" open source solutions.

• Category: Persistence
• License:  Other
• HomePage: http://objectstyle.org/cayenne/

ODAL is database persistence framework with emphasis on maintainability and performance. Features include query API, ORM, data validation/conversion, stored procedure support, code generation. Minimal dependencies. Short startup time.

• Category: Persistence
• License:  GNU Library or Lesser General Public License (LGPL)
• HomePage: http://odal.sourceforge.net/

pBeans is a Java based persistence framework and an Object/Relational (O/R) database mapping layer. It is designed to be simple to use and completely automated.

• Category: Persistence
• License:  Apache Software License
• HomePage: http://pbeans.sourceforge.net/

Torque is a persistence layer. Torque includes a generator to generate all the database resources required by your application and includes a runtime environment to run the generated classes.

• Category: Persistence
• License:  Apache Software License
• HomePage: http://db.apache.org/torque/

ObJectRelationalBridge (OJB) is an Object/Relational mapping tool that allows transparent persistence for Java Objects against relational databases.

• Category: Persistence
• License:  Apache Software License
• HomePage: http://db.apache.org/ojb/

PAT stands for "Persistent Applications Toolkit". Like many other software it simplifies developing of persistence layers of business applications. It does it by providing object-oriented environment for persistence of your objects: POJOs And.. it really does it. PAT provides almost transparent data layer for a business application. It employs state-of-the-art techniques to achieve it. These are OO, AOP (JBossAOP), Java, Prevayler, Ant, JUnit, Log4j, @@annotations and others. It cooperates well with web applications: Struts (and possibly other web frameworks), Tomcat, JBoss AS. (AOP term: persistence aspect)

• Category: Persistence
• License:  GNU Library or Lesser General Public License (LGPL)
• HomePage: http://patsystem.sourceforge.net/