ChangeToken class abstract

Propagates notifications that a change has occurred.

Implementers

• CancellationChangeToken
• CompositeChangeToken
• ConfigurationReloadToken

Constructors

ChangeToken.new()

Properties

activeChangeCallbacks → bool

Indicates if this token will pro-actively raise callbacks. If false, the token consumer must poll HasChanged to detect changes.

no setter

hasChanged → bool

Gets a value that indicates if a change has occurred.

no setter

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

registerChangeCallback(ChangeCallback callback, [Object state]) → Disposable?

Registers for a callback that will be invoked when the entry has changed.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

onChange(ChangeTokenProducer changeTokenProducer, ChangeTokenConsumer changeTokenConsumer) → Disposable

onStateChange<TState>(ChangeTokenProducer changeTokenProducer, ChangeTokenTypedConsumer<TState> changeTokenConsumer, TState state) → Disposable

Registers the changeTokenConsumer action to be called whenever the token produced changes.