PairwiseStreamTransformer<T> class

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

Rx.range(1, 4)
  .pairwise()
  .listen(print); // prints [1, 2], [2, 3], [3, 4]

Inheritance

Constructors

PairwiseStreamTransformer(): Constructs a StreamTransformer which buffers events into pairs as a List.

closeWindowWhen → bool Function(List<T> queue): Predicate which determines when the current window should close
final, inherited
dispatchOnClose → bool: Toggle to prevent, or allow the final set of events to be dispatched when the source Stream closes
final, inherited
hashCode → int: The hash code for this object. [...]
read-only, inherited
ignoreEmptyWindows → bool: Toggle to prevent, or allow windows that contain no events to be dispatched
final, inherited
maxLengthQueue → int: Maximum length of the buffer. Specify this value to avoid running out of memory when adding too many events to the buffer. If it's null, maximum length of the buffer is unlimited.
final, inherited
onWindowEnd → Iterable<T> Function(List<T> queue): Handler which fires when the window closes
final, inherited
onWindowStart → Iterable<T> Function(T event): Handler which fires when the window opens
final, inherited
runtimeType → Type: A representation of the runtime type of the object.
read-only, inherited
startBufferEvery → int: Used to skip an amount of events
final, inherited
strategy → WindowStrategy: Determines how the window is created
final, inherited
windowStreamFactory → Stream Function(T event): Factory method used to create the Stream which will be buffered
final, inherited

bind(Stream<T> stream) → Stream<Iterable<T>>: Transforms the provided stream. [...]
inherited
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