MultiStreamController class - dart:async library (original) (raw)
An enhanced stream controller provided by Stream.multi.
Acts like a normal asynchronous controller, but also allows adding events synchronously. As with any synchronous event delivery, the sender should be very careful to not deliver events at times when a new listener might not be ready to receive them. That usually means only delivering events synchronously in response to other asynchronous events, because that is a time when an asynchronous event could happen.
Implemented types
Annotations
- @Since("2.9")
Properties
A future which is completed when the stream controller is done sending events.
no setterinherited
The hash code for this object.
no setterinherited
Whether there is a subscriber on the Stream.
no setterinherited
Whether the stream controller is closed for adding more events.
no setterinherited
Whether the subscription would need to buffer events.
no setterinherited
onCancel ↔ FutureOr<void> Function()?
The callback which is called when the stream is canceled.
getter/setter pairinherited
onListen ↔ void Function()?
The callback which is called when the stream is listened to.
getter/setter pairinherited
onPause ↔ void Function()?
The callback which is called when the stream is paused.
getter/setter pairinherited
onResume ↔ void Function()?
The callback which is called when the stream is resumed.
getter/setter pairinherited
A representation of the runtime type of the object.
no setterinherited
sink → StreamSink<T>
Returns a view of this object that only exposes the StreamSink interface.
no setterinherited
The stream that this controller is controlling.
no setterinherited
Methods
add(T event)→ void
Sends a data event.
inherited
addError(Object error, [StackTrace? stackTrace])→ void
Sends or enqueues an error event.
inherited
addErrorSync(Object error, [StackTrace? stackTrace])→ void
Adds and delivers an error event.
addStream(Stream<T> source, {bool? cancelOnError})→ Future
Receives events from source and puts them into this controller's stream.
inherited
addSync(T value)→ void
Adds and delivers an event.
Closes the stream.
inherited
closeSync()→ void
Closes the controller and delivers a done event.
noSuchMethod(Invocation invocation)→ dynamic
Invoked when a nonexistent method or property is accessed.
inherited
A string representation of this object.
inherited
Operators
operator ==(Object other)→ bool
The equality operator.
inherited