Coding Standards

ASF Requirements

Copyright notices for submitted patches

Please see http://www.apache.org/legal/src-headers.html for details of the following summary.

Apache does not require you to assign ownership or copyright for any patches that you submit via the above process. You retain ownership for all such patches. But Apache does require you to grant Apache a license to use the patch. To do this for new files, do not include a copyright statement in the file but include this license as comments in the header of your source contribution - http://www.apache.org/legal/src-headers.html#headers
If you require that distributions of the project include your copyright notice, you should include with your patch an update to the NOTICE file at trunk/openjpa-project/NOTICE.txt documenting for which files you are notifying your copyright.

License and Notice files

Please see http://www.apache.org/licenses/ for details of the following summary.

All release artifacts published by an Apache project (JAR/WAR/EAR, zip, tar, ...) must include License and Notice files. A Disclaimer file must be included for any artifacts included form the incubator.

General Formatting Conventions

OpenJPA adheres to Sun's Code Conventions for the Java Programming Language, which is available at http://java.sun.com/docs/codeconv/

Eclipse Users

Formatter Profile

The profile can be downloaded from here - OpenJPA-formatting-preferences.xml

1. Window -> Preferences
2. Java -> Code Style -> Formatter
3. Click on import and select the OpenJPA-formatting-preferences.xml file downloaded above.
4. Press OK after importing

Code Template

The latest version with the required ASL header format can be downloaded here - OpenJPA-code-style-template.xml

1. Window -> Preferences
2. Java -> Code Style -> Code Templates
3. Click on import and select the OpenJPA-code-style-template.xml file downloaded above.
4. Press OK after importing

Submitting a Patch

If you make changes to OpenJPA, and would like to contribute the to the project, you should create a patch via svn and post it to the OpenJPA JIRA issue tracker. To create a patch, simply execute the following command:

$> svn diff > your-changes.patch

Note: You may also use Eclipse to create a patch (Team -> Create Patch...), but this may require committers to modify the patch to match their project layout (workspace per branch or all branches in one workspace) and some committers may not be using Eclipse/Subclipse.