A specialized Stream available to Elements to enable event delegation.
- Implements
-
- Stream<T>
Constructors
Properties
- first → Future<T>
-
Returns the first element of the stream.
read-only, inherited - hashCode → int
-
The hash code for this object.
read-only, inherited - isBroadcast → bool
-
Whether this stream is a broadcast stream.
read-only, inherited - isEmpty → Future<bool>
-
Reports whether this stream contains any elements.
read-only, inherited - last → Future<T>
-
Returns the last element of the stream.
read-only, inherited - length → Future<int>
-
Counts the elements in the stream.
read-only, inherited - runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited - single → Future<T>
-
Returns the single element.
read-only, inherited
Operators
-
operator ==(
other) → bool -
The equality operator.
inherited
Methods
-
capture(
void onData(T event)) → StreamSubscription<T> -
Adds a capturing subscription to this stream.
-
matches(
String selector) → Stream<T> -
Return a stream that only fires when the particular event fires for elements matching the specified CSS selector.
-
any(
bool test(T element)) → Future<bool> -
Checks whether
testaccepts any element provided by this stream.inherited -
asBroadcastStream(
{void onListen(StreamSubscription<T> subscription), void onCancel(StreamSubscription<T> subscription) }) → Stream<T> -
Returns a multi-subscription stream that produces the same events as this.
inherited -
asyncExpand<E>(
Stream<E> convert(T event)) → Stream<E> -
Creates a new stream with the events of a stream per original event.
inherited -
asyncMap<E>(
dynamic convert(T event)) → Stream<E> -
Creates a new stream with each data event of this stream asynchronously mapped to a new event.
inherited -
contains(
Object needle) → Future<bool> -
Checks whether
needleoccurs in the elements provided by this stream.inherited -
distinct(
[bool equals(T previous, T next) ]) → 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 the stream, but signals when it's done or an error occurred.
inherited -
elementAt(
int index) → Future<T> -
Returns the value of the
indexth data event of this stream.inherited -
every(
bool test(T element)) → Future<bool> -
Checks whether
testaccepts all elements provided by this stream.inherited -
expand<S>(
Iterable<S> convert(T value)) → Stream<S> -
Creates a new stream from this stream that converts each element into zero or more events.
inherited -
firstWhere(
bool test(T element), { Object defaultValue() }) → Future -
Finds the first element of this stream matching
test.inherited -
fold<S>(
S initialValue, S combine(S previous, T element)) → Future<S> -
Reduces a sequence of values by repeatedly applying
combine.inherited -
forEach(
void action(T element)) → Future -
Executes
actionon each data event of the stream.inherited -
handleError(
Function onError, { bool test(error) }) → Stream<T> -
Creates a wrapper Stream that intercepts some errors from this stream.
inherited -
join(
[String separator = "" ]) → Future<String> -
Collects string of data events' string representations.
inherited -
lastWhere(
bool test(T element), { Object defaultValue() }) → Future -
Finds the last element in this stream matching
test.inherited -
listen(
void onData(T event), { Function onError, void onDone(), bool cancelOnError }) → StreamSubscription<T> -
Adds a subscription to this stream.
inherited -
map<S>(
S convert(T event)) → Stream<S> -
Creates a new stream that converts each element of this stream to a new value using the
convertfunction.inherited -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed.
inherited -
pipe(
StreamConsumer<T> streamConsumer) → Future -
Pipe the events of this stream into
streamConsumer.inherited -
reduce(
T combine(T previous, T element)) → Future<T> -
Reduces a sequence of values by repeatedly applying
combine.inherited -
singleWhere(
bool test(T element)) → Future<T> -
Finds the single element in this stream matching
test.inherited -
skip(
int count) → Stream<T> -
Skips the first
countdata events from this stream.inherited -
skipWhile(
bool test(T element)) → Stream<T> -
Skip data events from this stream while they are matched by
test.inherited -
take(
int count) → Stream<T> -
Provides at most the first
countdata events of this stream.inherited -
takeWhile(
bool test(T element)) → Stream<T> -
Forwards data events while
testis successful.inherited -
timeout(
Duration timeLimit, { void onTimeout(EventSink<T> sink) }) → Stream<T> -
Creates a new stream with the same events as this stream.
inherited -
toList(
) → Future<List<T>> -
Collects the data of this stream in a List.
inherited -
toSet(
) → Future<Set<T>> -
Collects the data of this stream in a Set.
inherited -
toString(
) → String -
Returns a string representation of this object.
inherited -
transform<S>(
StreamTransformer<T, S> streamTransformer) → Stream<S> -
Chains this stream as the input of the provided StreamTransformer.
inherited -
where(
bool test(T event)) → Stream<T> -
Creates a new stream from this stream that discards some data events.
inherited