import { Transaction, TransactionContext, TransactionSelection, TransactionUpdation, TransactionDeletion } from '../types.js';
import type { Database } from './database.js';
/**
 * 增强的事务上下文实现
 * 支持链式调用的事务操作
 */
export declare class TransactionContextImpl<S extends Record<string, object>> implements TransactionContext<S> {
    private readonly db;
    private readonly trx;
    constructor(db: Database<any, S, string>, trx: Transaction);
    /**
     * 提交事务
     */
    commit(): Promise<void>;
    /**
     * 回滚事务
     */
    rollback(): Promise<void>;
    /**
     * 执行原生 SQL
     */
    query<T = any>(sql: string, params?: any[]): Promise<T>;
    /**
     * 插入单条数据
     */
    insert<T extends keyof S>(tableName: T, data: S[T]): Promise<S[T]>;
    /**
     * 批量插入数据
     */
    insertMany<T extends keyof S>(tableName: T, data: S[T][]): Promise<{
        affectedRows: number;
    }>;
    /**
     * 查询数据 - 返回链式选择器
     */
    select<T extends keyof S>(tableName: T, fields?: (keyof S[T])[]): TransactionSelection<S, T>;
    /**
     * 更新数据 - 返回链式更新器
     */
    update<T extends keyof S>(tableName: T, data: Partial<S[T]>): TransactionUpdation<S, T>;
    /**
     * 删除数据 - 返回链式删除器
     */
    delete<T extends keyof S>(tableName: T): TransactionDeletion<S, T>;
}
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