import { Observable } from "rxjs";
import { DescriptorFormControl, DescriptorOption } from "../descriptor";
import { VedraxApiService } from "./vedrax-api.service";
import * as i0 from "@angular/core";
/**
 * Service that provides methods for getting descriptor form.
 */
export declare class LovService {
    private apiService;
    constructor(apiService: VedraxApiService);
    /**
    * cached LOVs for all the application session
    */
    private lovs;
    /**
     * Helper method for checking if an entry is available in cache
     * @param endpoint
     * @returns
     */
    private hasOptionsInCache;
    /**
     * Helper method for getting list of options by endpoint
     * @param endpoint the API endpoint
     * @returns the returned options from the API
     */
    private getOptionsFromCache;
    /**
     * Helper method for adding options per endpoint to the cache
     * @param endpoint the API endpoint
     * @param options the returned options from the API
     */
    private addOptionsToCache;
    /**
     * Method for getting options from control descriptor
     * @param descriptor
     * @returns
     */
    getOptionsFromControlDescriptor(descriptor?: DescriptorFormControl): Observable<DescriptorOption[]>;
    /**
     * Method for getting the options from cache or from API
     * @param endpoint
     * @returns
     */
    getOptions(endpoint?: string): Observable<DescriptorOption[]>;
    getOption(endpoint: string, key?: string): Observable<DescriptorOption>;
    /**
     * Method for getting the options from API
     * @param endpoint
     * @returns
     */
    private getOptionsFromAPI;
    static ɵfac: i0.ɵɵFactoryDeclaration<LovService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<LovService>;
}