class

PlaceOS::Model::SignageTemplate::ChangeFeed(T)

Inherits Iterator < Enumerable < Reference < Object

forward declare so this file can be required before signage_template.cr finishes defining the parent class (the attribute layouts : Array(Layout) line needs Layout resolved at macro-expansion time).

Constructors

new(id : UUID | Nil = nil, parent : T.class = T.class)

Instance methods

next

Returns the next element in this iterator, or Iterator::Stop::INSTANCE if there are no more elements.

on

Method expects a block which will get invoked with Change(T) parameter on change events received from EventBus

stop

Shortcut for Iterator::Stop::INSTANCE, to signal that there are no more elements in an iterator.

Nested types