import { HostType, IConnectionDefaults, IEncodingOptions, IParsedHost } from './types';
export declare class ConnectionString {
    /**
     * Connection protocol, if specified,
     * or else the property does not exist.
     */
    protocol?: string;
    /**
     * User name, if specified,
     * or else the property does not exist.
     */
    user?: string;
    /**
     * User password, if specified,
     * or else the property does not exist.
     */
    password?: string;
    /**
     * List of parsed hosts, if at least one is specified,
     * or else the property does not exist.
     */
    hosts?: IParsedHost[];
    /**
     * Url path segments, if at least one is specified,
     * or else the property does not exist.
     */
    path?: string[];
    /**
     * Url parameters, if at least one is specified,
     * or else the property does not exist.
     */
    params?: {
        [name: string]: any;
    };
    /**
     * Safe read-accessor to the first host's full name (hostname + port).
     */
    get host(): string | undefined;
    /**
     * Safe read-accessor to the first host's name (without port).
     */
    get hostname(): string | undefined;
    /**
     * Safe read-accessor to the first host's port.
     */
    get port(): number | undefined;
    /**
     * Safe read-accessor to the first host's type.
     */
    get type(): HostType | undefined;
    /**
     * Constructor.
     *
     * @param cs - connection string (can be empty).
     *
     * @param defaults - optional defaults, which can also be set
     * explicitly, via method setDefaults.
     */
    constructor(cs?: string | null, defaults?: IConnectionDefaults);
    /**
     * Parses a host name into an object, which then can be passed into `setDefaults`.
     *
     * It returns `null` only when no valid host recognized.
     */
    static parseHost(host: string): IParsedHost | null;
    /**
     * Converts this object into a valid connection string.
     */
    toString(options?: IEncodingOptions): string;
    /**
     * Applies default parameters, and returns itself.
     */
    setDefaults(defaults: IConnectionDefaults): this;
}