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Apache Cayenne: Professional Object Relational Mapping

Apache Cayenne is a powerful, full-featured Java Object Relational Mapping framework. It is open source and completely free. Cayenne cross-platform modeling GUI tools place it in the league of its own, making it a very attractive choice over both closed source commercial products and traditional "edit your own XML" open source solutions.

Cayenne provides management of persistent Java objects mapped to relational databases, single method call queries and updates (including atomic updates of all modified objects), seamless integration of multiple databases into a single virtual data source. Cayenne is distributed with CayenneModeler - a complete GUI mapping tool. Cayenne has been successfully deployed in production environment on high volume sites and has a constantly growing international community.

Cayenne is a true open source project drawing its strength from the developer and user community.

Project News


[January 18, 2007] Cayenne 2.0.2 and 1.2.2 Released

Check out this new important bugfix release. Upgrade is recommended.

[January 5, 2007] Cayenne Becomes Apache Top Level Project

Yes, this finally happened!!

[November 26, 2006] Another Success Story

Unilever Germany, deployed a new media management system based on Cayenne.

[October 7, 2006] Cayenne 2.0.1 Release

This is the first ever Cayenne release from the Apache incubator, with feature set and patch level matching that of 1.2.1. Details are available here.

[Aug 30, 2004] Cayenne on the Cover of JavaWorld Japan

Cayenne sure gets some press coverage in Japan lately. A September edition of JavaWorld Japan has a big article on Cayenne, including a sample Tapestry application (pp. 94-112, Cayenne 1.0.7 is used). Big thanks to Manabu Yoneyama for sending me a copy of the magazine.



[June 2, 2004] Cayenne Article on TheServerSide.com

TheServerSide.com published an article by Andrus Adamchik and Eric Schneider introducing Cayenne and its productivity tools. Discuss this article on TheServerSide forum .

all news...

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