<?php
/**
* CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
*
* Licensed under The MIT License
* For full copyright and license information, please see the LICENSE.txt
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
* @link https://cakephp.org CakePHP(tm) Project
* @since 3.0.0
* @license https://opensource.org/licenses/mit-license.php MIT License
*/
namespace Cake\Database\Expression;
use Cake\Database\ExpressionInterface;
use Cake\Database\ValueBinder;
/**
* Represents a single identifier name in the database.
*
* Identifier values are unsafe with user supplied data.
* Values will be quoted when identifier quoting is enabled.
*
* @see \Cake\Database\Query::identifier()
*/
class IdentifierExpression implements ExpressionInterface
{
/**
* Holds the identifier string
*
* @var string
*/
protected $_identifier;
/**
* Constructor
*
* @param string $identifier The identifier this expression represents
*/
public function __construct($identifier)
{
$this->_identifier = $identifier;
}
/**
* Sets the identifier this expression represents
*
* @param string $identifier The identifier
* @return void
*/
public function setIdentifier($identifier)
{
$this->_identifier = $identifier;
}
/**
* Returns the identifier this expression represents
*
* @return string
*/
public function getIdentifier()
{
return $this->_identifier;
}
/**
* Converts the expression to its string representation
*
* @param \Cake\Database\ValueBinder $generator Placeholder generator object
* @return string
*/
public function sql(ValueBinder $generator)
{
return $this->_identifier;
}
/**
* @inheritDoc
*/
public function traverse(callable $visitor)
{
}
}