FieldSubscription<T> class

Inheritance

• Object
• ControlSubscription<T>
• FieldSubscription

Implemented types

• StreamSubscription<T?>

Available extensions

• DisposableExt

Constructors

FieldSubscription(StreamSubscription<T?> _sub)

Properties

cancelOnError ↔ bool

getter/setter pair

hashCode → int

The hash code for this object.

no setter, inherited

isActive → bool

Checks is this subscription can serve.

no setter, override

isCallbackAttached → bool

Checks if callback to serve is available.

no setter, inherited

isPaused → bool

Whether the StreamSubscription is currently paused.

no setter, override

isValid → bool

Checks if observable is set.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

asFuture<E>([E? futureValue]) → Future<E>

Returns a future that handles the onDone and onError callbacks.

override

cancel() → Future

override

dispose() → void

Used to clear and dispose object. Unsubscribe and close all sources. Prepare object for GC. Can be called multiple times!

override

disposeWith(DisposeObserver observer) → void

Available on Disposable, provided by the DisposableExt extension

Register for dispose with given observer.

filter(Predicate<T>? filter) → ControlSubscription<T>

Sets test to filter observable values.

inherited

initSubscription(ObservableValue parent, [ValueCallback<T>? callback]) → void

Activate this subscription. Given callback will serve changes via observable.

inherited

invalidate() → void

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

notifyCallback(T value) → void

Notify sub with given value. Check filter and until to modify callback. When sub is ready to invalidate, then parent observer will remove sub from its listeners.

inherited

once() → ControlSubscription<T>

Serve just one change. After this subscription cancels.

inherited

onData(void handleData(T? data)?) → void

Replaces the data event handler of this subscription.

override

onDone(void handleDone()?) → void

Replaces the done event handler of this subscription.

override

onError(Function? handleError) → void

Replaces the error event handler of this subscription.

override

pause([Future? resumeSignal]) → void

override

resume() → void

override

toString() → String

A string representation of this object.

inherited

until(Predicate<T>? predicate) → ControlSubscription<T>

Sets test to predicate when to cancel this subscription.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited