class ActiveFedora::AttributeMethods::AttributeMethodCache

def [](name)
  @method_cache.compute_if_absent(name) do
    safe_name = name.unpack('h*').first
    temp_method = "__temp__#{safe_name}"
    ActiveFedora::AttributeMethods::AttrNames.set_name_cache safe_name, name
    @module.module_eval method_body(temp_method, safe_name), __FILE__, __LINE__
    @module.instance_method temp_method
  end
end