# File lib/xsd/mapping.rb, line 23
  def self.obj2xml(obj, elename = nil, io = nil)
    if !elename.nil? and !elename.is_a?(XSD::QName)
      elename = XSD::QName.new(nil, elename)
    end
    elename ||= XSD::QName.new(nil, SOAP::Mapping.name2elename(obj.class.to_s))
    soap = SOAP::Mapping.obj2soap(obj, MappingRegistry)
    soap.elename = elename
    generator = SOAP::SOAPGenerator.new(MappingOpt)
    generator.generate(soap, io)
  end