ObserverRegistrationMode

Notify exclusively for changes happening on this node alone.

Notify for changes happening on this node and all its descendants existing at the moment in which the observer was registered. Nodes attached later will not be observed.

Notify for changes happening on this node and all its descendants. The descendants existing at the moment in which the observer was registered will be observed immediately. As new nodes are attached later they are automatically registered to be observed.

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Returns an array containing the constants of this enum type, in the order they're declared. This method may be used to iterate over the constants.