GroupByStreamTransformer<T, S> class

The GroupBy operator divides an Observable that emits items into an Observable that emits GroupByObservable, each one of which emits some subset of the items from the original source Observable.

GroupByObservable acts like a regular Observable, yet adding a 'key' property, which receives its Type and value from the grouper Function.

All items with the same key are emitted by the same GroupByObservable.

Constructors

GroupByStreamTransformer(S grouper(T))

Properties

grouper → S Function(T)
final
hashCode → int
The hash code for this object.
read-only, inherited
runtimeType → Type
A representation of the runtime type of the object.
read-only, inherited

Methods

bind(Stream<T> stream) → Stream<GroupByObservable<T, S>>
Transforms the provided stream. [...]
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
Returns a string representation of this object.
inherited

Operators

operator ==(dynamic other) → bool
The equality operator.
inherited