ObservableStream<T> class Null safety

Implemented types
Available Extensions

Constructors

ObservableStream(Stream<T> stream, {T? initialValue, bool cancelOnError = false, ReactiveContext? context, String? name})

Properties

data → dynamic
read-only
error → dynamic
Current error or null if not failed.
read-only
first ObservableFuture<T>
The first element of this stream. [...]
read-only, override
hasError bool
Current data is an error.
read-only
hashCode int
The hash code for this object. [...]
read-only, inherited
isBroadcast bool
Whether this stream is a broadcast stream.
read-only, override
isEmpty ObservableFuture<bool>
Whether this stream contains any elements. [...]
read-only, override
last ObservableFuture<T>
The last element of this stream. [...]
read-only, override
length ObservableFuture<int>
The number of elements in this stream. [...]
read-only, override
name String
read-only
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
single ObservableFuture<T>
The single element of this stream. [...]
read-only, override
status StreamStatus
Current stream status.
read-only
value → T?
Current value or null if waiting and no initialValue, or null if data is an error.
read-only, override

Methods

any(bool test(T element)) ObservableFuture<bool>
Checks whether test accepts any element provided by this stream. [...]
override
asBroadcastStream({void onListen(StreamSubscription<T> subscription)?, void onCancel(StreamSubscription<T> subscription)?}) ObservableStream<T>
Returns a multi-subscription stream that produces the same events as this. [...]
override
asyncExpand<E>(Stream<E>? convert(T event)) ObservableStream<E>
Transforms each element into a sequence of asynchronous events. [...]
override
asyncMap<E>(FutureOr<E> convert(T event)) ObservableStream<E>
Creates a new stream with each data event of this stream asynchronously mapped to a new event. [...]
override
cast<R>() ObservableStream<R>
Adapt this stream to be a Stream<R>. [...]
override
configure({T? initialValue, bool cancelOnError = false}) ObservableStream<T>
Create a new stream with the provided initialValue and cancelOnError.
contains(Object? needle) ObservableFuture<bool>
Returns whether needle occurs in the elements provided by this stream. [...]
override
distinct([bool equals(T previous, T next)?]) ObservableStream<T>
Skips data events if they are equal to the previous data event. [...]
override
drain<E>([E? futureValue]) ObservableFuture<E>
Discards all data on this stream, but signals when it is done or an error occurred. [...]
override
elementAt(int index) ObservableFuture<T>
Returns the value of the indexth data event of this stream. [...]
override
every(bool test(T element)) ObservableFuture<bool>
Checks whether test accepts all elements provided by this stream. [...]
override
expand<S>(Iterable<S> convert(T element)) ObservableStream<S>
Transforms each element of this stream into a sequence of elements. [...]
override
firstWhere(bool test(T element), {T orElse()?}) ObservableFuture<T>
Finds the first element of this stream matching test. [...]
override
fold<S>(S initialValue, S combine(S previous, T element)) ObservableFuture<S>
Combines a sequence of values by repeatedly applying combine. [...]
override
forEach(void action(T element)) ObservableFuture
Executes action on each element of this stream. [...]
override
handleError(Function onError, {bool test(dynamic)?}) ObservableStream<T>
Creates a wrapper Stream that intercepts some errors from this stream. [...]
override
join([String separator = '']) ObservableFuture<String>
Combines the string representation of elements into a single string. [...]
override
lastWhere(bool test(T element), {T orElse()?}) ObservableFuture<T>
Finds the last element in this stream matching test. [...]
override
listen(void onData(T event)?, {Function? onError, void onDone()?, bool? cancelOnError}) StreamSubscription<T>
Adds a subscription to this stream. [...]
override
map<S>(S convert(T event)) ObservableStream<S>
Transforms each element of this stream into a new stream event. [...]
override
match<R>({R waiting()?, R active(T)?, R error(dynamic)?, R done(T?, dynamic)?}) → R?
Maps the current status and value or error into a value. [...]
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
pipe(StreamConsumer<T> streamConsumer) ObservableFuture
Pipes the events of this stream into streamConsumer. [...]
override
reduce(T combine(T previous, T element)) ObservableFuture<T>
Combines a sequence of values by repeatedly applying combine. [...]
override
singleWhere(bool test(T element), {T orElse()?}) ObservableFuture<T>
Finds the single element in this stream matching test. [...]
override
skip(int count) ObservableStream<T>
Skips the first count data events from this stream. [...]
override
skipWhile(bool test(T element)) ObservableStream<T>
Skip data events from this stream while they are matched by test. [...]
override
take(int count) ObservableStream<T>
Provides at most the first count data events of this stream. [...]
override
takeWhile(bool test(T element)) ObservableStream<T>
Forwards data events while test is successful. [...]
override
timeout(Duration timeLimit, {void onTimeout(EventSink<T> sink)?}) ObservableStream<T>
Creates a new stream with the same events as this stream. [...]
override
toList() ObservableFuture<List<T>>
Collects all elements of this stream in a List. [...]
override
toSet() ObservableFuture<Set<T>>
Collects the data of this stream in a Set. [...]
override
toString() String
A string representation of this object. [...]
inherited
transform<S>(StreamTransformer<T, S> streamTransformer) ObservableStream<S>
Applies streamTransformer to this stream. [...]
override
where(bool test(T event)) ObservableStream<T>
Creates a new stream from this stream that discards some elements. [...]
override

Operators

operator ==(Object other) bool
The equality operator. [...]
inherited