import { MongoClientOptions } from "mongodb";
export declare const SPLIT_IN_SUBSET_DB = "--";
export declare const SPLIT_IN_ONE_DB = "==";
export declare const SPLIT_IN_INDEXED_DB = "__";
export declare const MAX_EXPORT_NUM = 1000;
export declare const EXPORT_LIMIT_NUM = -1;
export declare const MAX_STRING_LENGTH: number;
export declare class Mongo {
    private static option;
    private static url;
    private static _useTransaction;
    private static _getUrl;
    static getUrl(): string;
    static isOneDb(): boolean;
    static getDbName(database: string): string;
    static getCollectionName(database: string, collection: string): string;
    static useTransaction(): boolean;
    static getOption(): MongoClientOptions;
}
export declare function setAccessControlAllowOrigin(origin: string): void;
export declare function getAccessControlAllowOrigin(origin: string): string | null;
export declare const CORE_NODE: {
    PATH_A: string;
    PATH_C: string;
    PATH_D: string;
    PATH_R: string;
    PATH_M: string;
    PATH_N: string;
    PATH_TRANSACTION: string;
    PATH_CONTEXT: string;
    PATH_SUBSET_TRANSACTION: string;
    PATH_SUBSET: string;
    PATH_SUBSET_UPDATOR: string;
    PATH_EXEC: string;
    PATH_EXEC_MANY: string;
    PATH_UPDATE_MANY: string;
    PATH_GET_TRANSACTION: string;
    PATH_GET_TRANSACTION_OLD: string;
    PATH_GET_TRANSACTIONS: string;
    PATH_GET_TRANSACTIONS_OLD: string;
    PATH_GET_UPDATE_DATA: string;
    PATH_GET_LATEST_CSN: string;
    PATH_QUERY: string;
    PATH_QUERY_OLD: string;
    PATH_COUNT: string;
    PATH_COUNT_OLD: string;
    PATH_WAIT: string;
};
export declare const MAX_OBJECT_SIZE: number;