<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Memory\Container;
/**
* Memory value container
*
* Locked (always stored in memory).
*/
class Locked extends AbstractContainer
{
/**
* Value object
*
* @var string
*/
public $value;
/**
* Object constructor
*
* @param string $value
*/
public function __construct($value)
{
$this->value = $value;
}
/**
* Lock object in memory.
*/
public function lock()
{
/* Do nothing */
}
/**
* Unlock object
*/
public function unlock()
{
/* Do nothing */
}
/**
* Return true if object is locked
*
* @return bool
*/
public function isLocked()
{
return true;
}
/**
* Get string value reference
*
* _Must_ be used for value access before PHP v 5.2
* or _may_ be used for performance considerations
*
* @return &string
*/
public function &getRef()
{
return $this->value;
}
/**
* Signal, that value is updated by external code.
*
* Should be used together with getRef()
*/
public function touch()
{
/* Do nothing */
}
/**
* Destroy memory container and remove it from memory manager list
*/
public function destroy()
{
/* Do nothing */
}
}