import { DataInfo, DataProvider } from '@narik/infrastructure';
import { Injector } from '@angular/core';
import { Subject } from 'rxjs';
import { Observable } from 'rxjs';
export declare abstract class NarikBaseDataProvider implements DataProvider {
    private injector;
    key: string;
    order: number;
    belongsInChain: boolean;
    dayaKeyTemplate: string;
    protected dataStreams: Map<string, Subject<any>>;
    abstract getData(dataInfo: any): Observable<any>;
    abstract isDataProviderFor(dataInfo: DataInfo): boolean;
    constructor(injector: Injector);
    protected getFullKey(dataInfo: DataInfo): string;
    getDataStream<T = any>(dataInfo: DataInfo): Observable<T>;
    raiseDataStream(dataInfo: DataInfo, data: any): void;
    dataChanged(dataInfo: DataInfo | DataInfo[]): void;
}