import { SimpleDB } from "aws-sdk";
import { IsotopeDictionary } from "../format";
/**
 * Isotope client options
 */
export interface IsotopeClientOptions {
    consistent?: boolean;
}
/**
 * Isotope client item
 */
export interface IsotopeClientItem {
    id: string;
    attrs: IsotopeDictionary;
}
/**
 * Isotope client item list
 */
export interface IsotopeClientItemList {
    items: IsotopeClientItem[];
    next?: string;
}
/**
 * Map a dictionary to a list of SimpleDB attributes
 *
 * @param dict - Dictionary
 *
 * @return SimpleDB attributes
 */
export declare function mapDictionaryToAttributes(dict: IsotopeDictionary): SimpleDB.ReplaceableAttribute[];
/**
 * Map a list of SimpleDB attributes to a dictionary
 *
 * @param attrs - SimpleDB attributes
 *
 * @return Dictionary
 */
export declare function mapAttributesToDictionary(attrs: SimpleDB.Attribute[]): IsotopeDictionary;
/**
 * Isotope SimpleDB client abstraction
 */
export declare class IsotopeClient {
    protected domain: string;
    /**
     * Isotope client options
     */
    protected options: Required<IsotopeClientOptions>;
    /**
     * SimpleDB instance
     */
    protected simpledb: SimpleDB;
    /**
     * Initialize a SimpleDB client
     *
     * @param domain - SimpleDB domain name
     * @param options - Client options
     * @param simpleDBOptions - Options to pass directly to SimpleDB constructor
     */
    constructor(domain: string, options?: IsotopeClientOptions, simpleDBOptions?: SimpleDB.ClientConfiguration);
    /**
     * Create the SimpleDB domain
     *
     * @return Promise resolving with no result
     */
    create(): Promise<void>;
    /**
     * Destroy the SimpleDB domain
     *
     * @return Promise resolving with no result
     */
    destroy(): Promise<void>;
    /**
     * Retrieve an item from SimpleDB
     *
     * @param id - Identifier
     * @param names - Attribute names
     *
     * @return Promise resolving with item or undefined
     */
    get(id: string, names?: string[]): Promise<IsotopeClientItem | undefined>;
    /**
     * Persist an item in SimpleDB
     *
     * @param id - Identifier
     * @param attrs - Attributes
     *
     * @return Promise resolving with no result
     */
    put(id: string, attrs: IsotopeDictionary): Promise<void>;
    /**
     * Delete an item or specific attributes from SimpleDB
     *
     * @param id - Identifier
     * @param names - Attribute names
     *
     * @return Promise resolving with no result
     */
    delete(id: string, names?: string[]): Promise<void>;
    /**
     * Retrieve a set of items matching the given SQL query
     *
     * @param expr - SQL query expression
     * @param next - Pagination token
     *
     * @return Promise resolving with item list
     */
    select(expr: string, next?: string): Promise<IsotopeClientItemList>;
}