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From Apache Wiki <>
Subject [Incubator Wiki] Update of "CayenneProposal" by andrus
Date Mon, 06 Mar 2006 20:05:17 GMT
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The following page has been changed by andrus:

New page:
== Section 0 : Rationale ==

Cayenne is an open source component-oriented 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. Or, with native
XML serialization, objects can be even further persisted to non-Java clients - such as an
Ajax-capable browser. In addition to this existing functionality, Cayenne is currently building
a JPA-compatible persistence provider (JSR-220).

In 2001, Cayenne was started as an open source collaborative environment, modeled after ASF.
Thus, proposing Cayenne as an ASF project is the logical next step to further expand the community
and increase participation.

=== Section 0.1 : Criteria ===

    * Meritocracy: The project is and will contiue to be meritocratic, in accordance with
the usual Apache meritocracy standards.

    * Community: Cayenne has a substantial, long-established user and developer community.
Two mailing lists receive up to 500 messages per month, and the Jira bug tracker (shared with
one other project) has 230 registered users.

    * Core Developers: Andrus Adamchik (founder), Cris Daniluk, Michael Gentry, Tore Halset,
Mike Kienenberger, Kevin Menard, Eric Schneider

    * Alignment: Cayenne proposal is sponsored by DB PMC, however there is a number of reasons
to consider Cayenne best fitted to become a TLP upon incubator graduation. The final decision
is postponed till the graduation date.

    * License: Cayenne is currently licensed under the Apache License 1.1, with the intention
of switching to Apache License 2.0.

=== Section 0.2 : Warning Signs ===

    * Orphaned Software: Cayenne has a high volume of development activity. On a release date,
our "vitality rating" is typically #15-20, out of over 40000 registered projects.

    * Experience With Open Source: Cayenne was started as an open source project in 2001 and
has remained so for 5 years.

    * Homogenous Developers: Most of the current active committers met each other through
the Cayenne community. None work for the same company.

    * Reliance on salaried developers: There is not a single Cayenne committer who is compensated
for their efforts - we are a 100% volunteer project.

    * No Ties to Other Apache Products: Cayenne itself uses a number of Apache libraries,
such as commons-*, velocity, log4j. Cayenne integrates with Derby and has Struts and Tapestry
examples. Our user community overlaps with Tapestry and the MyFaces communities to some extent.
We are planning to contribute a JPA provider to Geronimo, and have already taken some steps
to work with the OpenEJB project, who will be providing JSR-220 implementation to Geronimo.
We are open to collaboration and finding synergies with other Apache projects (e.g., those
that require an Apache-licensed ORM).

    * Achieving the Apache Brand is a Prominent Goal: As indicated elsewhere in this proposal,
Cayenne was founded with many of the same fundamental goals of ASF, regarding meritocracy
and community building, and it has been licensed under Apache License. We remain committed
to these goals as we move to ASF.

== Section 1 : Scope of the project ==

Cayenne presently consists of an Object-Relational Mapping framework (ORM), a Swing Toolset
for ORM and Swing bindings, an early version of an XML serialization framework and a Remote
Object Persistence framework. We have started an effort to provide a full Cayenne-based implementation
of the Java Persistence API, compliant with JSR-220 (aka EJB3).

== Section 2 : Initial source from which the project is to be populated ==

Current Cayenne sources at

== Section 3: Identify the ASF resources to be created ==
=== Section 3.1 : Mailing Lists ===

    * cayenne-dev
    * cayenne-user
    * cayenne-scm
    * cayenne-ppmc

    * need to import lists of subscribers from current ezmlm lists.

=== Section 3.2: SVN Repositories ===

    * cayenne (need to import current CVS)

=== Section 3.3: Issue Tracking ===

    * Need a new Jira project called CAYENNE.
    * Need to import current issues from Jira

== Section 4: Identify the Initial Set of Committers ==

ASF Committers

    * Mike Kienenberger (MyFaces PMC - apache user id 'mkienenb')

Non-ASF Committers

    * Andrus Adamchik
    * Cris Daniluk
    * Michael Gentry
    * Tore Halset
    * Kevin Menard
    * Eric Schneider

== Section 5: Identify ASF Sponsor ==

Sponsor: DB PMC
    * Jean T Anderson
    * Jim Jagielski
    * Brian McCallister
== Section 6: Open Issues for Discussion ==

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