DematerializeStreamTransformer<S> class Null safety

Converts the onData, onDone, and onError Notification objects from a materialized stream into normal onData, onDone, and onError events.

When a stream has been materialized, it emits onData, onDone, and onError events as Notification objects. Dematerialize simply reverses this by transforming Notification objects back to a normal stream of events.

Example

Stream<Notification<int>>
    .fromIterable([Notification.onData(1), Notification.onDone()])
    .transform(DematerializeStreamTransformer())
    .listen((i) => print(i)); // Prints 1

Error example

Stream<Notification<int>>
    .fromIterable([Notification.onError(Exception(), null)])
    .transform(DematerializeStreamTransformer())
    .listen(null, onError: (e, s) { print(e) }); // Prints Exception
Inheritance

Constructors

DematerializeStreamTransformer()
Constructs a StreamTransformer which converts the onData, onDone, and onError Notification objects from a materialized stream into normal onData, onDone, and onError events.

Properties

hashCode int
The hash code for this object.
read-onlyinherited
runtimeType Type
A representation of the runtime type of the object.
read-onlyinherited

Methods

bind(Stream<Notification<S>> stream) Stream<S>
Transforms the provided stream.
override
cast<RS, RT>() StreamTransformer<RS, RT>
Provides a StreamTransformer<RS, RT> view of this stream transformer.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
inherited
toString() String
A string representation of this object.
inherited

Operators

operator ==(Object other) bool
The equality operator.
inherited