import { IterableDifferFactory, DefaultIterableDiffer, ChangeDetectorRef, IterableDiffer, TrackByFunction } from '@angular/core';
import { MongoCursorObserver } from './mongo_cursor_observer';
export declare function stringify(token: any): string;
export declare class IterableChangeRecord<V> {
    item: V;
    trackById: any;
    currentIndex: number | null;
    previousIndex: number | null;
    _nextPrevious: IterableChangeRecord<V> | null;
    _prev: IterableChangeRecord<V> | null;
    _next: IterableChangeRecord<V> | null;
    _prevDup: IterableChangeRecord<V> | null;
    _nextDup: IterableChangeRecord<V> | null;
    _prevRemoved: IterableChangeRecord<V> | null;
    _nextRemoved: IterableChangeRecord<V> | null;
    _nextAdded: IterableChangeRecord<V> | null;
    _nextMoved: IterableChangeRecord<V> | null;
    _nextIdentityChange: IterableChangeRecord<V> | null;
    constructor(item: V, trackById: any);
    toString(): string;
}
export interface ObserverFactory {
    create(cursor: Object): Object;
}
export declare class MongoCursorDifferFactory implements IterableDifferFactory {
    supports(obj: Object): boolean;
    create<V>(trackByFn?: TrackByFunction<V>): IterableDiffer<V>;
}
/**
 * A class that implements Angular 2's concept of differs for ngFor.
 * API consists mainly of diff method and methods like forEachAddedItem
 * that is being run on each change detection cycle to apply new changes if any.
 */
export declare class MongoCursorDiffer<V> extends DefaultIterableDiffer<V> {
    private _inserted;
    private _removed;
    private _moved;
    private _updated;
    private _changes;
    private _curObserver;
    private _lastChanges;
    private _forSize;
    private _cursor;
    private _obsFactory;
    private _sub;
    constructor(_cdr: ChangeDetectorRef, obsFactory: ObserverFactory);
    forEachAddedItem(fn: Function): void;
    forEachMovedItem(fn: Function): void;
    forEachRemovedItem(fn: Function): void;
    forEachIdentityChange(fn: Function): void;
    forEachOperation(fn: Function): void;
    diff(cursor: any): this;
    onDestroy(): void;
    readonly observer: MongoCursorObserver;
    _destroyObserver(): void;
    _updateLatestValue(changes: any): void;
    _reset(): void;
    _applyCleanup(): void;
    _applyChanges(changes: any): void;
    _createChangeRecord(currentIndex: any, prevIndex: any, item: any): IterableChangeRecord<V>;
}