def self.write_one(object, writer, singular = nil)
singular ||= 'affinity_group'
writer.write_start(singular)
href = object.href
writer.write_attribute('href', href) unless href.nil?
writer.write_attribute('id', object.id) unless object.id.nil?
Writer.write_string(writer, 'comment', object.comment) unless object.comment.nil?
Writer.write_string(writer, 'description', object.description) unless object.description.nil?
Writer.write_boolean(writer, 'enforcing', object.enforcing) unless object.enforcing.nil?
AffinityRuleWriter.write_one(object.hosts_rule, writer, 'hosts_rule') unless object.hosts_rule.nil?
Writer.write_string(writer, 'name', object.name) unless object.name.nil?
Writer.write_boolean(writer, 'positive', object.positive) unless object.positive.nil?
AffinityRuleWriter.write_one(object.vms_rule, writer, 'vms_rule') unless object.vms_rule.nil?
ClusterWriter.write_one(object.cluster, writer, 'cluster') unless object.cluster.nil?
HostWriter.write_many(object.hosts, writer, 'host', 'hosts') unless object.hosts.nil?
VmWriter.write_many(object.vms, writer, 'vm', 'vms') unless object.vms.nil?
writer.write_end
end