module CarrierWave
  module Storage

    ##
    # This file serves mostly as a specification for Storage engines. There is no requirement
    # that storage engines must be a subclass of this class.
    #
    class Abstract

      attr_reader :uploader

      def initialize(uploader)
        @uploader = uploader
      end
      
      def self.setup!; end
      
      def identifier
        uploader.filename
      end
      
      def store!(file)
      end
      
      def retrieve!(identifier)
      end
      
    end # Abstract
  end # Storage
end # CarrierWave