import { DataSource, CollectionViewer } from "@angular/cdk/collections";
import { Observable } from 'rxjs';
import { VedraxApiService } from '../../services/vedrax-api.service';
import { NVP } from '../../shared/nvp';
import { FormGroup } from "@angular/forms";
/**
 * Class that implements the {@link DataSource}.
 */
export declare class VedraxAutocompleteDataSource extends DataSource<any[]> {
    private apiService;
    /**
     * The subscription
     */
    private subscription;
    /**
     * The data listener
     */
    private dataSubject;
    /**
     * Cache data
     */
    private cachedData;
    /**
     * Default page size
     */
    private pageSize;
    /**
     * Current page number
     */
    private lastPage;
    /**
     * The query parameters
     */
    private queryParams;
    /**
     * The submitted flag listener
     */
    private submittedSubject;
    /**
     * An observable submitted flag
     */
    submitted$: Observable<boolean>;
    /**
     * The endpoint to be called
     */
    private endpoint;
    /**
     * The default params
     */
    private params;
    constructor(apiService: VedraxApiService);
    setEndpoint(endpoint?: string): void;
    setDefaultParams(nvps?: NVP[]): void;
    /**
     * Method used for connection
     * @param collectionViewer
     * @returns
     */
    connect(collectionViewer: CollectionViewer): Observable<any[]>;
    /**
     * Method used for disconnection
     * @param collectionViewer
     */
    disconnect(collectionViewer: CollectionViewer): void;
    /**
     * Helper method for getting the page
     * @param i
     * @returns
     */
    private getPageForIndex;
    /**
     * Method used for performing a search
     */
    initSearch(searchForm?: FormGroup): void;
    /**
    * Method for loading data from API
    */
    private loadData;
}