| Title: Home |
| |
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| ## Object Relational Mapping, Persistence and Caching for Java |
| |
| Apache Cayenne(tm) is an open source persistence framework licensed |
| under the Apache License, providing object-relational mapping (ORM) and remoting services. With a wealth of unique and powerful features, Cayenne can address a wide |
| range of persistence needs. Cayenne seamlessly binds one or more database |
| schemas directly to Java objects, managing atomic commit and rollbacks, SQL |
| generation, joins, sequences, and more. With Cayenne's Remote Object |
| Persistence, those Java objects can even be persisted out to clients via |
| Web Services. |
| |
| Cayenne is designed to be easy to use, without sacrificing flexibility or |
| design. To that end, Cayenne supports database reverse engineering and |
| generation, as well as a Velocity-based class generation engine. All of |
| these functions can be controlled directly through the CayenneModeler, a |
| fully functional GUI tool. No cryptic XML or annotation based configuration |
| is required\! An entire database schema can be mapped directly to Java |
| objects within minutes, all from the comfort of the GUI-based |
| CayenneModeler. |
| |
| Cayenne supports numerous other features, including caching, a complete |
| object query syntax, relationship pre-fetching, on-demand object and |
| relationship faulting, object inheritance, database auto-detection, and |
| generic persisted objects. Most importantly, Cayenne can scale up or down |
| to virtually any project size. With a mature, 100% open source framework, |
| an energetic user community, and a track record of solid performance in |
| high-volume environments, Cayenne is an exceptional choice for persistence |
| services. |
| |
| ## News |
| |
| * Mar 06, 2017 - [4.0 Milestone 5 released](/2017/03/cayenne-40M5-released.html) |
| * Dec 13, 2016 - [4.0 Milestone 4 released](/2016/12/cayenne-40M4-released.html) |
| * May 16, 2016 - [3.1.1 released](/2016/05/cayenne-311-released.html) |
| * Feb 12, 2016 - [4.0 Milestone 3 released](/2016/02/cayenne-40m3-released.html) |
| * Mar 18, 2015 - [4.0 Milestone 2 released](/2015/03/cayenne-40m2-released.html) |
| |
| ## Cayenne Modeler |
| <span style="float: right"><img style="border: 0px solid black" src="/img/modeler-thumb.png"></span> |
| Cayenne is distributed with CayenneModeler - a complete GUI mapping tool that supports reverse-engineering of RDBMS |
| schemas, working with database mappings and generation of Java source code |
| for the persistent objects. |
| |
| Persistent Java classes are generated and synchronized with the mapping |
| using the Modeler or alternatively with Maven or Ant. A database SQL schema |
| can be generated from the Modeler and also with simple API calls. |
