import { Observable } from 'rxjs/Observable';
import { DeliveryClientConfig } from '../../config/delivery-client.config';
import { IHeader } from '../../interfaces/common/iheader.interface';
import { IContentItem } from '../../interfaces/item/icontent-item.interface';
import { IItemQueryConfig } from '../../interfaces/item/iitem-query.config';
import { ItemResponses } from '../../models/item/responses';
import { QueryService } from '../../services/query.service';
import { BaseQuery } from '../common/base-query.class';
export declare abstract class BaseItemQuery<TItem extends IContentItem, TResponse> extends BaseQuery<TResponse> {
    protected config: DeliveryClientConfig;
    protected queryService: QueryService;
    protected _queryConfig?: IItemQueryConfig;
    constructor(config: DeliveryClientConfig, queryService: QueryService);
    /**
     * Used to configure query
     * @param queryConfig Query configuration
     */
    queryConfig(queryConfig: IItemQueryConfig): this;
    /**
    * Gets headers used by this query
    */
    getHeaders(): IHeader[];
    /**
     * Language codename
     * @param languageCodename Codename of the language
     */
    languageParameter(languageCodename: string): this;
    /**
     * Used to limit the number of elements returned by query.
     * @param elementCodenames Array of element codenames to fetch
     */
    elementsParameter(elementCodenames: string[]): this;
    /**
     * Indicates how deep nested modular content items are resolved.
     * @param depth Depth of the query (> 0)
     */
    depthParameter(depth: number): this;
    private getQueryConfig();
    protected getMultipleItemsQueryUrl(): string;
    protected getSingleItemQueryUrl(codename: string): string;
    protected runMultipleItemsQuery(): Observable<ItemResponses.DeliveryItemListingResponse<TItem>>;
    protected runSingleItemQuery(codename: string): Observable<ItemResponses.DeliveryItemResponse<TItem>>;
    private processDefaultLanguageParameter();
}