name : ReplaySubject.d.ts import { Subject } from './Subject'; import { TimestampProvider } from './types'; /** * A variant of {@link Subject} that "replays" old values to new subscribers by emitting them when they first subscribe. * * `ReplaySubject` has an internal buffer that will store a specified number of values that it has observed. Like `Subject`, * `ReplaySubject` "observes" values by having them passed to its `next` method. When it observes a value, it will store that * value for a time determined by the configuration of the `ReplaySubject`, as passed to its constructor. * * When a new subscriber subscribes to the `ReplaySubject` instance, it will synchronously emit all values in its buffer in * a First-In-First-Out (FIFO) manner. The `ReplaySubject` will also complete, if it has observed completion; and it will * error if it has observed an error. * * There are two main configuration items to be concerned with: * * 1. `bufferSize` - This will determine how many items are stored in the buffer, defaults to infinite. * 2. `windowTime` - The amount of time to hold a value in the buffer before removing it from the buffer. * * Both configurations may exist simultaneously. So if you would like to buffer a maximum of 3 values, as long as the values * are less than 2 seconds old, you could do so with a `new ReplaySubject(3, 2000)`. * * ### Differences with BehaviorSubject * * `BehaviorSubject` is similar to `new ReplaySubject(1)`, with a couple of exceptions: * * 1. `BehaviorSubject` comes "primed" with a single value upon construction. * 2. `ReplaySubject` will replay values, even after observing an error, where `BehaviorSubject` will not. * * @see {@link Subject} * @see {@link BehaviorSubject} * @see {@link shareReplay} */ export declare class ReplaySubject<T> extends Subject<T> { private _bufferSize; private _windowTime; private _timestampProvider; private _buffer; private _infiniteTimeWindow; /** * @param _bufferSize The size of the buffer to replay on subscription * @param _windowTime The amount of time the buffered items will stay buffered * @param _timestampProvider An object with a `now()` method that provides the current timestamp. This is used to * calculate the amount of time something has been buffered. */ constructor(_bufferSize?: number, _windowTime?: number, _timestampProvider?: TimestampProvider); next(value: T): void; private _trimBuffer; } //# sourceMappingURL=ReplaySubject.d.ts.map