DematerializeStreamTransformer<S> class

Converts the onData, onDone, and onError StreamNotification 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 StreamNotification objects. Dematerialize simply reverses this by transforming StreamNotification objects back to a normal stream of events.

Example

Stream<StreamNotification<int>>
    .fromIterable([StreamNotification.data(1), StreamNotification.done()])
    .transform(DematerializeStreamTransformer())
    .listen(print); // Prints 1

Error example

Stream<StreamNotification<int>>
    .fromIterable([StreamNotification.error(Exception(), null)])
    .transform(DematerializeStreamTransformer())
    .listen(null, onError: (e, s) => print(e)); // Prints Exception

Inheritance

• Object
• StreamTransformerBase<StreamNotification<S>, S>
• DematerializeStreamTransformer

Constructors

DematerializeStreamTransformer()

Constructs a StreamTransformer which converts the onData, onDone, and onError StreamNotification objects from a materialized stream into normal onData, onDone, and onError events.

Properties

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

bind(Stream<StreamNotification<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 nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited