MaterializeStreamTransformer<S> class

Converts the onData, on Done, and onError events into Notification objects that are passed into the downstream onData listener.

The Notification object contains the Kind of event (OnData, onDone, or OnError), and the item or error that was emitted. In the case of onDone, no data is emitted as part of the Notification.

Example

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

Inheritance

• Object
• StreamTransformerBase<S, Notification<S>>
• MaterializeStreamTransformer

Constructors

MaterializeStreamTransformer()

Constructs a StreamTransformer which transforms the onData, on Done, and onError events into Notification objects.

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<S> stream) → Stream<Notification<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