    def get_xml_node(self):
        xb = xmlapi.XmlBuilder()

        ret = []
        if self.access_hosts is not None:
            ret.append(xb.list_elements('AccessHosts', self.access_hosts))
        if self.rw_hosts is not None:
            ret.append(xb.list_elements('RwHosts', self.rw_hosts))
        if self.ro_hosts is not None:
            ret.append(xb.list_elements('RoHosts', self.ro_hosts))
        if self.root_hosts is not None:
            ret.append(xb.list_elements('RootHosts', self.root_hosts))
        return ret