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42 lines
1.0 KiB
PHP
42 lines
1.0 KiB
PHP
<?php
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/**
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* @link http://www.yiiframework.com/
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* @copyright Copyright (c) 2008 Yii Software LLC
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* @license http://www.yiiframework.com/license/
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*/
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namespace yii\mutex;
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use Yii;
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use yii\db\Connection;
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use yii\base\InvalidConfigException;
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use yii\di\Instance;
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/**
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* DbMutex is the base class for classes, which relies on database while implementing mutex "lock" mechanism.
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*
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* @see Mutex
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*
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* @author resurtm <resurtm@gmail.com>
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* @since 2.0
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*/
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abstract class DbMutex extends Mutex
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{
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/**
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* @var Connection|string the DB connection object or the application component ID of the DB connection.
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* After the Mutex object is created, if you want to change this property, you should only assign
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* it with a DB connection object.
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*/
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public $db = 'db';
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/**
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* Initializes generic database table based mutex implementation.
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* @throws InvalidConfigException if [[db]] is invalid.
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*/
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public function init()
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{
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parent::init();
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$this->db = Instance::ensure($this->db, Connection::className());
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}
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}
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