Classes that implement this interface return zero or more URLs which refer to application configuration resources (i.e. documents conforming the faces-config DTD or Schema).

Implementations of this interface are made known to the runtime using service discovery.

For example:

    META-INF/services/com.sun.faces.spi.FacesConfigResourceProvider

The file, com.sun.faces.spi.FacesConfigResourceProvider, contains a single line which represents the fully qualified class name of the concrete FacesConfigResourceProvider.

The FacesConfigResourceProvider instances that are found will be inserted into a List of existing ConfigurationResourceProviders after those that process faces-config.xml files in META-INF but before those that process faces-config.xml files in the web application. If the documents returned by this ConfigurationResourceProvider instance require specific ordering semantics, then use the partial or absolute ordering feature provided by the JavaServer Faces 2.0 specification.