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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Framework\Setup\Declaration\Schema;
use Magento\Framework\Setup\Declaration\Schema\Dto\ElementInterface;
/**
* Element history container.
*
* This class holds history about element modifications.
*/
class ElementHistory
{
/**
* @var ElementInterface
*/
private $new;
/**
* @var ElementInterface
*/
private $old;
/**
* Constructor.
*
* @param ElementInterface $new
* @param ElementInterface $old
*/
public function __construct(ElementInterface $new, ElementInterface $old = null)
{
$this->new = $new;
$this->old = $old;
}
/**
* Retrieve element, that exists before we run installation.
*
* @return ElementInterface|null
*/
public function getOld()
{
return $this->old;
}
/**
* Retrieve element, that comes from configuration.
*
* @return ElementInterface
*/
public function getNew()
{
return $this->new;
}
}