CatalogConfiguratorPlugIn parses the configuration resource specified by the path or resource property to configure the default Catalog registered with the CatalogFactory for this application.

An Action implementation that delegates to a configured Chain (or Command) for performing the actual business logic related to a request.

ComposableRequestProcessor uses the Chain Of Resposibility design pattern (as implemented by the commons-chain package in Jakarta Commons) to support external configuration of command chains to be used.

An Action implementation that delegates to a Chain (or Command) that is specified by a request parameter whose name is configured in the parameter attribute of the <action> element configuring this action.