SubscriptionStream<T> class
AStream adapter for aStreamSubscription.
This class allows aStreamSubscription to be treated as aStream.
The subscription is paused until the stream is listened to,then it is resumed and the events are passed on to thestream's new subscription.
This class assumes that it has control over the original subscription.If other code is accessing the subscription, results may be unpredictable.
- Inheritance
- Available extensions
Constructors
- SubscriptionStream(StreamSubscription<
T> subscription) - Create a single-subscription
Streamfromsubscription.
Properties
- first→Future<
T> - The first element of this stream.no setterinherited
- firstOrNull→Future<
T?> Available onStream<
A future which completes with the first event of this stream, or withT> , provided by theStreamExtensions extensionnull.no setter- hashCode→int
- The hash code for this object.no setterinherited
- isBroadcast→bool
- Whether this stream is a broadcast stream.no setterinherited
- isEmpty→Future<
bool> - Whether this stream contains any elements.no setterinherited
- last→Future<
T> - The last element of this stream.no setterinherited
- length→Future<
int> - The number of elements in this stream.no setterinherited
- runtimeType→Type
- A representation of the runtime type of the object.no setterinherited
- single→Future<
T> - The single element of this stream.no setterinherited
Methods
- any(
booltest(Telement))→Future< bool> - Checks whether
testaccepts any element provided by this stream.inherited - asBroadcastStream(
{voidonListen(StreamSubscription< T> subscription)?,voidonCancel(StreamSubscription<T> subscription)?})→Stream<T> - Returns a multi-subscription stream that produces the same events as this.inherited
- asyncExpand<
E> (Stream< E> ?convert(Tevent))→Stream<E> - Transforms each element into a sequence of asynchronous events.inherited
- asyncMap<
E> (FutureOr< E> convert(Tevent))→Stream<E> - Creates a new stream with each data event of this stream asynchronouslymapped to a new event.inherited
- cast<
R> ()→Stream< R> - Adapt this stream to be a
Stream<R>.inherited - contains(
Object?needle)→Future< bool> - Returns whether
needleoccurs in the elements provided by this stream.inherited - distinct(
[boolequals(Tprevious,Tnext)?])→Stream< T> - Skips data events if they are equal to the previous data event.inherited
- drain<
E> ([E?futureValue])→Future< E> - Discards all data on this stream, but signals when it is done or an erroroccurred.inherited
- elementAt(
intindex)→Future< T> - Returns the value of the
indexth data event of this stream.inherited - every(
booltest(Telement))→Future< bool> - Checks whether
testaccepts all elements provided by this stream.inherited - expand<
S> (Iterable< S> convert(Telement))→Stream<S> - Transforms each element of this stream into a sequence of elements.inherited
- firstWhere(
booltest(Telement), {TorElse()?})→Future< T> - Finds the first element of this stream matching
test.inherited - fold<
S> (SinitialValue,Scombine(Sprevious,Telement))→Future< S> - Combines a sequence of values by repeatedly applying
combine.inherited - forEach(
voidaction(Telement))→Future< void> - Executes
actionon each element of this stream.inherited - handleError(
FunctiononError, {booltest(dynamicerror)?})→Stream< T> - Creates a wrapper Stream that intercepts some errors from this stream.inherited
- join(
[Stringseparator =""])→Future< String> - Combines the string representation of elements into a single string.inherited
- lastWhere(
booltest(Telement), {TorElse()?})→Future< T> - Finds the last element in this stream matching
test.inherited - listen(
voidonData(T)?, {Function?onError,voidonDone()?,bool?cancelOnError})→StreamSubscription< T> - Adds a subscription to this stream.override
- listenAndBuffer(
)→Stream< T> Available onStream<
Eagerly listens to this stream and buffers events until needed.T> , provided by theStreamExtensions extension- map<
S> (Sconvert(Tevent))→Stream< S> - Transforms each element of this stream into a new stream event.inherited
- noSuchMethod(
Invocationinvocation)→ dynamic - Invoked when a nonexistent method or property is accessed.inherited
- pipe(
StreamConsumer< T> streamConsumer)→Future - Pipes the events of this stream into
streamConsumer.inherited - reduce(
Tcombine(Tprevious,Telement))→Future< T> - Combines a sequence of values by repeatedly applying
combine.inherited - singleWhere(
booltest(Telement), {TorElse()?})→Future< T> - Finds the single element in this stream matching
test.inherited - skip(
intcount)→Stream< T> - Skips the first
countdata events from this stream.inherited - skipWhile(
booltest(Telement))→Stream< T> - Skip data events from this stream while they are matched by
test.inherited - slices(
intlength)→Stream< List< T> > Available onStream<
Creates a stream whose elements are contiguous slices ofT> , provided by theStreamExtensions extensionthis.- take(
intcount)→Stream< T> - Provides at most the first
countdata events of this stream.inherited - takeWhile(
booltest(Telement))→Stream< T> - Forwards data events while
testis successful.inherited - timeout(
DurationtimeLimit, {voidonTimeout(EventSink< T> sink)?})→Stream<T> - Creates a new stream with the same events as this stream.inherited
- toList(
)→Future< List< T> > - Collects all elements of this stream in aList.inherited
- toSet(
)→Future< Set< T> > - Collects the data of this stream in aSet.inherited
- toString(
)→String - A string representation of this object.inherited
- transform<
S> (StreamTransformer< T,S> streamTransformer)→Stream<S> - Applies
streamTransformerto this stream.inherited - where(
booltest(Tevent))→Stream< T> - Creates a new stream from this stream that discards some elements.inherited
Operators
- operator ==(
Objectother)→bool - The equality operator.inherited