atomic_modifiers library

Atomic modifiers from RxDart

Classes

BufferCountStreamTransformer<T>

Buffers a number of values from the source Stream by count then emits the buffer and clears it, and starts a new buffer each startBufferEvery values. If startBufferEvery is not provided, then new buffers are started immediately at the start of the source and when each buffer closes and is emitted.

BufferStreamTransformer<T>

Creates a Stream where each item is a List containing the items from the source sequence.

BufferTestStreamTransformer<T>

Creates a Stream where each item is a List containing the items from the source sequence, batched whenever test passes.

DebounceStreamTransformer<T>

Transforms a Stream so that will only emit items from the source sequence if a window has completed, without the source sequence emitting another item.

DefaultIfEmptyStreamTransformer<S>

Emit items from the source Stream, or a single default item if the source Stream emits nothing.

DelayStreamTransformer<S>

The Delay operator modifies its source Stream by pausing for a particular increment of time (that you specify) before emitting each of the source Stream’s items. This has the effect of shifting the entire sequence of items emitted by the Stream forward in time by that specified increment.

DelayWhenStreamTransformer<T>

Delays the emission of items from the source Stream by a given time span determined by the emissions of another Stream.

DematerializeStreamTransformer<S>

Converts the onData, onDone, and onError Notification objects from a materialized stream into normal onData, onDone, and onError events.

DistinctUniqueStreamTransformer<S>

Create a Stream which implements a HashSet under the hood, using the provided equals as equality.

DoStreamTransformer<S>

Invokes the given callback at the corresponding point the the stream lifecycle. For example, if you pass in an onDone callback, it will be invoked when the stream finishes emitting items.

EndWithManyStreamTransformer<S>

Appends a sequence of values to the source Stream.

EndWithStreamTransformer<S>

Appends a value to the source Stream before closing.

ExhaustMapStreamTransformer<S, T>

Converts events from the source stream into a new Stream using a given mapper. It ignores all items from the source stream until the new stream completes.

FlatMapStreamTransformer<S, T>

Converts each emitted item into a new Stream using the given mapper function, while limiting the maximum number of concurrent subscriptions to these Streams. The newly created Stream will be listened to and begin emitting items downstream.

GroupByStreamTransformer<T, K>

The GroupBy operator divides a Stream that emits items into a Stream that emits GroupedStream, each one of which emits some subset of the items from the original source Stream.

GroupedStream<T, K>

The Stream used by GroupByStreamTransformer, it contains events that are grouped by a key value.

IgnoreElementsStreamTransformer<S>

Creates a Stream where all emitted items are ignored, only the error / completed notifications are passed

IntervalStreamTransformer<S>

Creates a Stream that emits each item in the Stream after a given duration.

MapNotNullStreamTransformer<T, R extends Object>

Create a Stream containing only the non-null results of applying the given transform function to each element of the Stream.

MapToStreamTransformer<S, T>

Emits the given constant value on the output Stream every time the source Stream emits a value.

MaterializeStreamTransformer<S>

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

OnErrorResumeStreamTransformer<S>

Intercepts error events and switches to a recovery stream created by the provided recoveryFn Function.

PairwiseStreamTransformer<T>

Emits the n-th and n-1th events as a pair. The first event won't be emitted until the second one arrives.

SampleStreamTransformer<T>

A StreamTransformer that, when the specified window Stream emits an item or completes, emits the most recently emitted item (if any) emitted by the source Stream since the previous emission from the sample Stream.

ScanStreamTransformer<S, T>

Applies an accumulator function over an stream sequence and returns each intermediate result. The seed value is used as the initial accumulator value.

SkipLastStreamTransformer<T>

Skip the last count items emitted by the source Stream

SkipUntilStreamTransformer<S, T>

Starts emitting events only after the given stream emits an event.

StartWithManyStreamTransformer<S>

Prepends a sequence of values to the source Stream.

StartWithStreamTransformer<S>

Prepends a value to the source Stream.

SwitchIfEmptyStreamTransformer<S>

When the original stream emits no items, this operator subscribes to the given fallback stream and emits items from that stream instead.

SwitchMapStreamTransformer<S, T>

Converts each emitted item into a new Stream using the given mapper function. The newly created Stream will be be listened to and begin emitting items, and any previously created Stream will stop emitting.

TakeLastStreamTransformer<T>

Emits only the final count values emitted by the source Stream.

TakeUntilStreamTransformer<S, T>

Returns the values from the source stream sequence until the other stream sequence produces a value.

TakeWhileInclusiveStreamTransformer<S>

Emits values emitted by the source Stream so long as each value satisfies the given test. When the test is not satisfied by a value, it will emit this value as a final event and then complete.

ThrottleStreamTransformer<T>

A StreamTransformer that emits a value from the source Stream, then ignores subsequent source values while the window Stream is open, then repeats this process.

TimeInterval<T>

A class that represents a snapshot of the current value emitted by a Stream, at a specified interval.

TimeIntervalStreamTransformer<S>

Records the time interval between consecutive values in an stream sequence.

Timestamped<T>

A class that represents a snapshot of the current value emitted by a Stream, at a specified timestamp.

TimestampStreamTransformer<S>

Wraps each item emitted by the source Stream in a Timestamped object that includes the emitted item and the time when the item was emitted.

WhereNotNullStreamTransformer<T extends Object>

Create a Stream which emits all the non-null elements of the Stream, in their original emission order.

WhereTypeStreamTransformer<S, T>

This transformer is a shorthand for Stream.where followed by Stream.cast.

WindowCountStreamTransformer<T>

Buffers a number of values from the source Stream by count then emits the buffer as a Stream and clears it, and starts a new buffer each startBufferEvery values. If startBufferEvery is not provided, then new buffers are started immediately at the start of the source and when each buffer closes and is emitted.

WindowStreamTransformer<T>

Creates a Stream where each item is a Stream containing the items from the source sequence.

WindowTestStreamTransformer<T>

Creates a Stream where each item is a Stream containing the items from the source sequence, batched whenever test passes.

WithLatestFromStreamTransformer<S, T, R>

A StreamTransformer that emits when the source stream emits, combining the latest values from the two streams using the provided function.

Extensions

BufferExtensions on Stream<T>

Extends the Stream class with the ability to buffer events in various ways

DebounceExtensions on Stream<T>

Extends the Stream class with the ability to debounce events in various ways

DefaultIfEmptyExtension on Stream<T>

DelayExtension on Stream<T>

Extends the Stream class with the ability to delay events being emitted

DelayWhenExtension on Stream<T>

Extends the Stream class with the ability to delay events being emitted.

DematerializeExtension on Stream<Notification<T>>

Converts the onData, onDone, and onError Notifications from a materialized stream into normal onData, onDone, and onError events.

DistinctUniqueExtension on Stream<T>

Extends the Stream class with the ability to skip items that have previously been emitted.

DoExtensions on Stream<T>

Extends the Stream class with the ability to execute a callback function at different points in the Stream's lifecycle.

EndWithExtension on Stream<T>

Extends the Stream class with the ability to emit the given value as the final item before closing.

EndWithManyExtension on Stream<T>

Extends the Stream class with the ability to emit the given value as the final item before closing.

ExhaustMapExtension on Stream<T>

Extends the Stream class with the ability to transform the Stream into a new Stream. The new Stream emits items and ignores events from the source Stream until the new Stream completes.

FlatMapExtension on Stream<T>

Extends the Stream class with the ability to convert the source Stream into a new Stream each time the source emits an item.

GroupByExtension on Stream<T>

Extends the Stream class with the ability to convert events into Streams of events that are united by a key.

IgnoreElementsExtension on Stream<T>

Extends the Stream class with the ability to skip, or ignore, data events.

IntervalExtension on Stream<T>

Extends the Stream class with the ability to emit each item after a given duration.

MapNotNullExtension on Stream<T>

Extends the Stream class with the ability to convert the source Stream to a Stream containing only the non-null results of applying the given transform function to each element of this Stream.

MapToExtension on Stream<S>

Extends the Stream class with the ability to convert each item to the same value.

MaterializeExtension on Stream<T>

Extends the Stream class with the ability to convert the onData, on Done, and onError events into Notifications that are passed into the downstream onData listener.

MaxExtension on Stream<T>

Extends the Stream class with the ability to transform into a Future that completes with the largest item emitted by the Stream.

MinExtension on Stream<T>

Extends the Stream class with the ability to transform into a Future that completes with the smallest item emitted by the Stream.

OnErrorExtensions on Stream<T>

Extends the Stream class with the ability to recover from errors in various ways

PairwiseExtension on Stream<T>

Extends the Stream class with the ability to emit the nth and n-1th events as a pair

SampleExtensions on Stream<T>

Extends the Stream class with the ability to sample events from the Stream

ScanExtension on Stream<T>

Extends

SkipLastExtension on Stream<T>

Extends the Stream class with the ability to skip the last count items emitted by the source Stream

SkipUntilExtension on Stream<T>

Extends the Stream class with the ability to skip events until another Stream emits an item.

StartWithExtension on Stream<T>

Extends the Stream class with the ability to emit the given value as the first item.

StartWithManyExtension on Stream<T>

Extends the Stream class with the ability to emit the given values as the first items.

SwitchIfEmptyExtension on Stream<T>

Extend the Stream class with the ability to return an alternative Stream if the initial Stream completes with no items.

SwitchMapExtension on Stream<T>

Extends the Stream with the ability to convert one stream into a new Stream whenever the source emits an item. Every time a new Stream is created, the previous Stream is discarded.

TakeLastExtension on Stream<T>

Extends the Stream class with the ability receive only the final count events from the source Stream.

TakeUntilExtension on Stream<T>

Extends the Stream class with the ability receive events from the source Stream until another Stream produces a value.

TakeWhileInclusiveExtension on Stream<T>

Extends the Stream class with the ability to take events while they pass the condition given and include last event that doesn't pass the condition.

ThrottleExtensions on Stream<T>

Extends the Stream class with the ability to throttle events in various ways

TimeIntervalExtension on Stream<T>

Extends the Stream class with the ability to record the time interval between consecutive values in an stream

TimeStampExtension on Stream<T>

Extends the Stream class with the ability to wrap each item emitted by the source Stream in a Timestamped object that includes the emitted item and the time when the item was emitted.

WhereNotNullExtension on Stream<T?>

Extends the Stream class with the ability to convert the source Stream to a Stream which emits all the non-null elements of this Stream, in their original emission order.

WhereTypeExtension on Stream<T>

Extends the Stream class with the ability to filter down events to only those of a specific type.

WindowExtensions on Stream<T>

Extends the Stream class with the ability to window

WithLatestFromExtensions on Stream<T>

Extends the Stream class with the ability to merge the source Stream with the last emitted item from another Stream.