import { Observable } from 'rxjs';
export interface Datasource<T> {
    /**
     * Data stream
     */
    data$: Observable<T[]>;
    /**
     * Observable indicating if data is currently fetched from remote source
     */
    fetchingData$: Observable<boolean>;
    /**
     *  Connects the data with the datasource and sets also the data
     * @param data
     */
    connect(data: T[]): void;
    connect(data: Observable<T[]>): void;
    /**
     * Returns a snapshot of the current data
     */
    getDataSnapshot(): T[] | null;
}