import DBConnection from './db/DBConnection.js';
import { Propagation } from "./db/Transaction.js";
export default class TransactionManager {
    private static threadLocal;
    private static _logger;
    private static get logger();
    static getCurrentConnection(): DBConnection | undefined;
    /**
     * Executes database operations while managing connection lifecycle and transaction state automatically.
     * Supports REQUIRED, REQUIRES_NEW, and NONE propagation behaviors.
     * @param propagation Transaction propagation behavior.
     * @param fn Business processor function receiving the database connection.
     */
    static execute(propagation: Propagation, fn: (conn: DBConnection) => Promise<any>): Promise<any>;
}