import { ClassType } from "../base/type";
/**
 *  数据读写接口
 */
export interface UtilsDataStorage {
    /**
     * 获取数据
     */
    getItem: (key: string) => string | undefined;
    /**
     * 写入数据
     */
    setItem: (key: string, value: string | undefined) => void;
}
/** 数据信息， 用以缓存或持久化数据对象 */
export declare class UtilsDB<T> {
    private static readonly _instance;
    private static readonly _dataStorage;
    /** 授权数据 */
    private readonly accessData;
    private readonly storeKey;
    private readonly className;
    /**
     * 注册数据储器类
     * @param classTypeName
     * @param storage
     */
    registerDataStorage(classTypeName: string, storage: UtilsDataStorage): void;
    private getItem;
    private setItem;
    constructor(classType?: ClassType<T>, className?: string);
    get(key: string): Promise<T | undefined>;
    set(key: string, data: T): Promise<boolean>;
}