source: ruby/branches/0.5/lib/open_ehr/rm/data_structures/representation.rb@ 186

# rm::data_structures::representation
# representation module
# http://www.openehr.org/uml/release-1.0.1/Browsable/_9_0_76d0249_1109066789167_738055_2581Report.html
# refs #53
module OpenEhr
  module RM
    module DataStructures
      module Representation
        class Item < OpenEhr::RM::Common::Archetyped::Locatable
          def initialize(args = {})
            super(args)
          end
        end

        class Element < Item
          attr_accessor :value
          attr_reader :null_flavor
          def initialize(args = {})
            super(args)
            self.value = args[:value]
            self.null_flavor= args[:null_flavor]
          end

          def null_flavor=(null_flavor)
            sr = nil
            if !null_flavor.nil? and
                null_flavor.defining_code.terminology_id.name == 'openehr'
              sr = Terminology.find(:first,                                  
                                    :conditions => "code = '#{null_flavor.defining_code.code_string}'")
            end
            if null_flavor.nil? or (!sr.nil? and sr.group == 'null flavours')
              @null_flavor = null_flavor
            else
              raise ArgumentError, 'null_flavor is invalid'
            end
          end

          def is_null?
            return @value.nil?
          end
        end
      end # of Representation
    end # of DataStructures
  end # of RM
end # of OpenEhr