This feature is experimental and subject to change.
A "Zero Configuration" Struts application or plugin uses no additional XML or properties files. Metadata is expressed through convention and annotation.
As this is a new feature, and still being field-tested, the documentation is sketchy. But, here's what we have so far:
- The best example right now is in the showcase, where the person package uses the classpath scanning configuration.
- Use the "actionPackages" filter init param for a comma-separated list of packages containing Action classes. The packages and their subpackages will be scanned.
- All classes in the designated packages that implement Action or end in "Action" are examined. The latter is to allow for POJO Actions that don't implement the Action interface.
- We should probably add an action annotation, so that POJOs can itall with annotations.
- The subpackage name makes the namespace, and the action class name makes the action name. If there is an "Action" suffix, it is dropped before creating the action name. Therefore, if the configured package is com.myapp.actions and the Action is com.myapp.actions.member.EditAction, you can access it via http://server/myapp/member/edit.action
- Results are defined with the Result and Results annotations at the class level
- The Namespace annotation overrides the namespace
- The ParentPackage annotation has the XWork package (an XWork package is created per Java package) to extend the defined package. Multiple packages can be specified through annotations on multiple Actions in the package.
Stay tuned to this page for additional details and documentation. If you have a chance to try the zero configuration feature, please share any experiences on dev@ and here.