/**
 * @author Martin Karkowski
 * @email m.karkowski@zema.de
 */
import { BehaviorSubject } from "rxjs";
import { NopeEventEmitter } from "../eventEmitter/nopeEventEmitter";
import { TSubjectOptions } from "../helpers/getSubject";
import { IEventAdditionalData, IEventCallback, INopeObservable, INopeObserver, INopePartialObserver, INopeSubscriptionOptions, IObservableType } from "../types/nope/index";
/**
 * RsJX based Observable.
 *
 * Contains additional Functionalities like:
 *  - property with the current value
 *  - function to publish values. (wrapper for next)
 *  - enables performing a subscription with synced call or a immediate call.
 */
export declare class NopeObservable<T, S = T, G = T, AD extends IEventAdditionalData = IEventAdditionalData> extends NopeEventEmitter<T, S, G, AD> implements INopeObservable<T, S, G, AD> {
    protected _options: TSubjectOptions;
    protected _emitter: BehaviorSubject<IObservableType<G, AD>>;
    get observable(): BehaviorSubject<IObservableType<G, AD>>;
    readonly id: string;
    _value: T;
    options: any;
    setContent(value: S | null, options?: Partial<AD>): boolean;
    /**
     * Function to set the content of the Observable
     * @param value
     * @param sender
     * @param timeStamp
     * @param data
     */
    protected _emit(value: S | null, options?: Partial<AD>): boolean;
    /**
     * Internal Function to Publish content
     *
     * @author M.Karkowski
     * @protected
     * @param {G} value The value to use.
     * @param {Partial<AD>} [options={}]
     * @return {boolean}
     * @memberof NopeObservable
     */
    protected _publish(value: G, options?: Partial<AD>): boolean;
    /**
     * Function to Force an Update
     *
     * @author M.Karkowski
     * @param {Partial<AD>} options Options which might be relevant
     * @return {boolean}
     * @memberof NopeObservable
     */
    forcePublish(options?: Partial<AD>): boolean;
    /**
     * Function to extract the Content.
     * If a Getter is provided, the Getter will be used
     * to Transform the item.
     */
    getContent(): G | null;
    protected _lastDataUpdate: number;
    /**
     * A Function to subscribe to updates of the Observable.
     * @param observer The Observer. Could be a Function or a Partial Observer.
     * @param mode The Mode of the Subscription
     * @param options Additional Options.
     */
    subscribe(observer: INopePartialObserver<G, AD> | IEventCallback<G, AD>, options?: INopeSubscriptionOptions): INopeObserver;
    constructor(_options?: TSubjectOptions);
}