Updatable Objects

Subclass of Node.

This represents Node objects that can be updated by Updating objects. Updating can happen either by modifying the contents of an updatable object, or by replacing it in the stream. An updatable object can only be associated with one updater at a time.

u.getUpdater() : Node

Returns the Node that is updating this one or None if there is no updater.

u.getUpdaterID() : string

Returns the id of the node that is updating this one or the empty string if there is no updater.

u.isUpdatingEnabled() : boolean

Returns True if this node can be updated by an updater. This value can be set or returned regardless of whether an updater has been specified.

u.setUpdatingEnabled(canUpdate)
canUpdate (boolean) : 

Sets whether this node can be updated by any associated updater.