Contents

# Copyright: Copyright 2009 Topic Maps Lab, University of Leipzig.
# License:   Apache License, Version 2.0

module Sugar
  module Association
    # This module implements methods for Hash-like access in Associations.
    module HashAccess

      # Returns all Roles of this Association. 
      #
      # If type is given, returns the Roles of this Association
      # whose Role type match type.
      # Type may be a Topic or Topic-Reference.
      #
      # The result may be empty.
      #
      # :call-seq:
      #   [] -> Array of Roles
      #   [type] -> Array of Roles
      #
      def [](type=:any)
        return getRoles.to_a if type == :any
        return getRoles.to_a unless type
        type = topic_map.get(type)
        if type
          return getRoles(type).to_a
        else
          return []
        end
      end
      
      
      # Creates a new Role in this Association where type specifies the
      # Role type and player the associated Role player.
      # Type and player may each be a Topic, String-Reference or Locator.
      # 
      # :call-seq:
      #   [type]= player
      #
      # TODO Issue #919
      def []=(type,player)
   		  create_role(type,player)
      end
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
rtm-0.2.0	lib/rtm/sugar/association/hash_access.rb