This is a base class for all JSPWikiPlugins that refer to things. As such it is not capable of being invoked directly, but all plugins that extend this plugin inherit its parameters and their functionality.
All parameters are optional:
For include and exclude you can list page names (separated by commas or whitespace) and/or supply a pattern (using a regular expression syntax) in the exclude parameter to filter out the pages you don't want, or in the include parameter to include those you do. Absent either the entire wiki is queried.
There are no examples of this abstract plugin since it cannot be invoked directly!