45 lines
1.3 KiB
PHP
45 lines
1.3 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
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* Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
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*
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* Licensed under The MIT License
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* For full copyright and license information, please see the LICENSE.txt
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
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* @link https://cakephp.org CakePHP(tm) Project
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* @since 3.0.0
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* @license https://opensource.org/licenses/mit-license.php MIT License
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*/
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namespace Cake\Database;
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use Closure;
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/**
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* An interface used by Expression objects.
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*/
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interface ExpressionInterface
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{
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/**
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* Converts the Node into a SQL string fragment.
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*
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* @param \Cake\Database\ValueBinder $binder Parameter binder
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* @return string
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*/
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public function sql(ValueBinder $binder): string;
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/**
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* Iterates over each part of the expression recursively for every
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* level of the expressions tree and executes the $callback callable
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* passing as first parameter the instance of the expression currently
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* being iterated.
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*
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* @param \Closure $callback The callable to apply to all nodes.
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* @return $this
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*/
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public function traverse(Closure $callback);
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}
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