import { Observable } from 'rxjs';
import * as i0 from "@angular/core";
export declare class DdlSearchableService {
    private items$;
    private totalItems;
    private itemsPerPage;
    constructor();
    loadData(skip: number, limit: number): Observable<any[]>;
    loadInitialItems(): Observable<any[]>;
    loadMoreItems(startIndex: number, endIndex: number): void;
    clearItemsBeforeIndex(index: number): void;
    private loadItems;
    static ɵfac: i0.ɵɵFactoryDeclaration<DdlSearchableService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<DdlSearchableService>;
}