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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\Db\Statement;
/**
* Schema operation interface.
*/
interface OperationInterface
{
/**
* Retrieve operation identifier key.
*
* @return string
*/
public function getOperationName();
/**
* Is operation destructive flag.
*
* Destructive operations can make system unstable.
*
* For example, if operation is destructive it can remove table or column created not with
* declarative schema (for example with old migration script).
*
* @return bool
*/
public function isOperationDestructive();
/**
* Apply change of any type.
*
* @param ElementHistory $elementHistory
* @return Statement[]
*/
public function doOperation(ElementHistory $elementHistory);
}