Creates docroot resources using environment dependend methods.
A class implementing this interface provides Pustefix docroot
resources. This task can be performed by using files in a directory
on the filesystem, files from a JAR file or any other mechanism
that can provide file like resources.
author: Sebastian Marsching
Returns an instance of
DocrootResource that represents
the resource specified by the given URI. A resource is always
returned unless the URI provided is invalid or does not use the
pfixroot URI scheme. A DocrootResource object is returned even if
the specified resource does not exist.
Parameters: uri - URI using the pfixroot scheme A DocrootResource that can be used to access the resourcespecified by the URI.