+ def remove_protocol(self, proto):
+ if not self.can_remove_records:
+ raise RuntimeError, "can_remove_records is enabled, but remove_protocol() not implemented"
+
+ raise NotImplementedError
+
+ @property
+ def requires_update(self):
+ # If the IP addresses have changed, an update is required
+ if self.ip_address_changed(self.protocols):
+ logger.debug(_("An update for %(hostname)s (%(provider)s)"
+ " is performed because of an IP address change") % \
+ { "hostname" : self.hostname, "provider" : self.name })
+
+ return True
+
+ # If the holdoff time has expired, an update is required, too
+ if self.holdoff_time_expired():
+ logger.debug(_("An update for %(hostname)s (%(provider)s)"
+ " is performed because the holdoff time has expired") % \
+ { "hostname" : self.hostname, "provider" : self.name })
+
+ return True
+
+ # Otherwise, we don't need to perform an update
+ logger.debug(_("No update required for %(hostname)s (%(provider)s)") % \
+ { "hostname" : self.hostname, "provider" : self.name })
+
+ return False
+
+ def ip_address_changed(self, protos):