Module: RTM::AR::IO::TOXTM2::TopicMap

Defined in:
lib/rtm/activerecord/io/to_xtm2.rb

Instance Method Summary collapse

Instance Method Details

#to_xtm2 ⇒ Object

returns the XTM 2.0 representation of this topic map as an REXML::Document, ready for outputting



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# File 'lib/rtm/activerecord/io/to_xtm2.rb', line 41

def to_xtm2
  # topicMap = element topicMap { reifiable, version, mergeMap*,
  #                               (topic | association)* }
  doc = REXML::Document.new
  doc << REXML::XMLDecl.new
  x = doc.add_element 'topicMap', {'xmlns' => 'http://www.topicmaps.org/xtm/', 'version' => '2.0'}
  x.add_attribute('reifier', reifier.xtm2_id) if reifier
  x << REXML::Comment.new("Topics count: #{topics.size}")
  x << REXML::Comment.new("Associations count: #{associations.size}")
  item_identifiers.each { |ii| x << TOXTM2.locator(ii) } # itemIdentity
  # mergeMap not used
  topics.each { |t| x << t.to_xtm2 }
  associations.each { |a| x << a.to_xtm2 }
  doc
end