Enterprise-grade Open Source Java framework for object relational mapping (ORM), persistence, and caching now easier to configure, with improved modularity and performance.
"With the launch of version 3.1, Apache Cayenne has continued to evolve its mature 12 year-old library by introducing 125 new features," said Andrus Adamchik, Vice President of Apache Cayenne.
Cayenne has a track record of solid performance in high-volume environments. Apache Cayenne is an exceptional choice for persistence services, and is in use at ish onCourse, National Hockey League, Nike, Unilever and the Law Library of Congress (the world's largest publicly-available legal index) as well as dozens of high-demand applications and Websites accessed by millions of users each day.
- easier configuration and embedding in any type of application;
- highly configurable runtime, enabled by one of the industry's smallest built-in Dependency Injection (DI) containers written specifically for Cayenne (and that co-exists with other DI/IoC, such as Apache Tapestry). It is also very easy to create more than one runtime, which opens interesting possibilities like multi-tenancy;
- nearly all components now pluggable, making it very easy to create more than one runtime and easily change or extend internals of the stack declaratively --from cache provider to SQL log format to DataSource lookup strategy and much more;
- improved ORM modularity to allow projects to be included in libraries without assumptions about the target use. Different aspects of an application can now be modeled in separate mapping projects and combined in runtime as needed. As a result Cayenne projects can be included in libraries that make no assumptions about the target use;
- extended persistent events model from simple per-object events to more higher-level "workflows" that can be configured with app-specific annotations on persistent classes. Cayenne ships with "cayenne-lifecycle" module that provides a few common examples of such workflows activated on data changes: data modifications audit, precision cache invalidation, etc.; and
- performance optimizations for improved overall concurrency
"Developers who are seeking an alternate to EJB/Hibernate might find Cayenne's graphical modeler, reverse database engineering, easy to use query API and flexible context model a joy to work with," said Aristedes Maniatis, member of the Apache Cayenne Project Management Committee and CEO of ish.
"We use Cayenne in our system to collect, quality control and distribute world coverage nautical charts to navies, pilots, inspectors and several thousand vessels," said Tore Halset, Development Manager at Electronic Chart Centre and PRIMAR. "We have been happy users of Apache Cayenne since 2005 and are now on version 3.1."
"Apache Cayenne is a core service in Avoka Transact, an engagement platform for multi-channel sales and service transactions," said Malcolm Edgar, Vice President of Engineering at Avoka.
"We use Apache Cayenne to support the Oracle, MySQL, and SQL Server databases. Cayenne provides the right blend of ORM capabilities and low level JDBC access when required. It has been a rock-solid technology for us."
"Our comprehensive documentation and vibrant, helpful user community are just what you need when you have questions about the internals of Cayenne or the best way to achieve your goals," added Adamchik.
Availability and Oversight
Cayenne v3.1 is available immediately as a free download from http://cayenne.apache.org/download.html. As with all Apache products, Apache Cayenne software is released under the Apache License v2.0, and is overseen by a self-selected team of active contributors to the project. A Project Management Committee (PMC) guides the Project's day-to-day operations, including community development and product releases. For documentation and ways to become involved with Apache Cayenne, visit http://cayenne.apache.org/ and @ApacheCayenne on Twitter.
About The Apache Software Foundation (ASF)
Established in 1999, the all-volunteer Foundation oversees more than two hundred leading Open Source projects, including Apache HTTP Server --the world's most popular Web server software. Through the ASF's meritocratic process known as "The Apache Way," more than 450 individual Members and 4,000 Committers successfully collaborate to develop freely available enterprise-grade software, benefiting millions of users worldwide: thousands of software solutions are distributed under the Apache License; and the community actively participates in ASF mailing lists, mentoring initiatives, and ApacheCon, the Foundation's official user conference, trainings, and expo. The ASF is a US 501(c)(3) charitable organization, funded by individual donations and corporate sponsors including Budget Direct, Citrix, Cloudera, Comcast, Facebook, Google, Hortonworks, HP, Huawei, IBM, InMotion Hosting, Matt Mullenweg, Microsoft, Pivotal, Produban, WANdisco, and Yahoo. For more information, visit http://www.apache.org/ or follow @TheASF on Twitter.
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