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Current File : /www/wwwroot/0531yanglao.com/vendor/topthink/think-orm/src/db/ConnectionInterface.php
<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2019 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
declare (strict_types = 1);

namespace think\db;

use Psr\SimpleCache\CacheInterface;
use think\DbManager;

/**
 * Connection interface
 */
interface ConnectionInterface
{
    /**
     * 获取当前连接器类对应的Query类
     * @access public
     * @return string
     */
    public function getQueryClass(): string;

    /**
     * 指定表名开始查询
     * @param $table
     * @return BaseQuery
     */
    public function table($table);

    /**
     * 指定表名开始查询(不带前缀)
     * @param $name
     * @return BaseQuery
     */
    public function name($name);

    /**
     * 连接数据库方法
     * @access public
     * @param array   $config  接参数
     * @param integer $linkNum 连接序号
     * @return mixed
     */
    public function connect(array $config = [], $linkNum = 0);

    /**
     * 设置当前的数据库Db对象
     * @access public
     * @param DbManager $db
     * @return void
     */
    public function setDb(DbManager $db);

    /**
     * 设置当前的缓存对象
     * @access public
     * @param CacheInterface $cache
     * @return void
     */
    public function setCache(CacheInterface $cache);

    /**
     * 获取数据库的配置参数
     * @access public
     * @param string $config 配置名称
     * @return mixed
     */
    public function getConfig(string $config = '');

    /**
     * 关闭数据库(或者重新连接)
     * @access public
     * @return $this
     */
    public function close();

    /**
     * 查找单条记录
     * @access public
     * @param BaseQuery $query 查询对象
     * @return array
     */
    public function find(BaseQuery $query): array;

    /**
     * 查找记录
     * @access public
     * @param BaseQuery $query 查询对象
     * @return array
     */
    public function select(BaseQuery $query): array;

    /**
     * 插入记录
     * @access public
     * @param BaseQuery   $query        查询对象
     * @param boolean $getLastInsID 返回自增主键
     * @return mixed
     */
    public function insert(BaseQuery $query, bool $getLastInsID = false);

    /**
     * 批量插入记录
     * @access public
     * @param BaseQuery   $query   查询对象
     * @param mixed   $dataSet 数据集
     * @return integer
     */
    public function insertAll(BaseQuery $query, array $dataSet = []): int;

    /**
     * 更新记录
     * @access public
     * @param BaseQuery $query 查询对象
     * @return integer
     */
    public function update(BaseQuery $query): int;

    /**
     * 删除记录
     * @access public
     * @param BaseQuery $query 查询对象
     * @return int
     */
    public function delete(BaseQuery $query): int;

    /**
     * 得到某个字段的值
     * @access public
     * @param BaseQuery  $query   查询对象
     * @param string $field   字段名
     * @param mixed  $default 默认值
     * @return mixed
     */
    public function value(BaseQuery $query, string $field, $default = null);

    /**
     * 得到某个列的数组
     * @access public
     * @param BaseQuery  $query  查询对象
     * @param string|array $column 字段名 多个字段用逗号分隔
     * @param string $key    索引
     * @return array
     */
    public function column(BaseQuery $query, $column, string $key = ''): array;

    /**
     * 执行数据库事务
     * @access public
     * @param callable $callback 数据操作方法回调
     * @return mixed
     */
    public function transaction(callable $callback);

    /**
     * 启动事务
     * @access public
     * @return void
     */
    public function startTrans();

    /**
     * 用于非自动提交状态下面的查询提交
     * @access public
     * @return void
     */
    public function commit();

    /**
     * 事务回滚
     * @access public
     * @return void
     */
    public function rollback();

    /**
     * 获取最近一次查询的sql语句
     * @access public
     * @return string
     */
    public function getLastSql(): string;

}