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<?php
/*
* This file is part of the TYPO3 CMS project.
*
* It is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, either version 2
* of the License, or any later version.
*
* For the full copyright and license information, please read the
* LICENSE.txt file that was distributed with this source code.
*
* The TYPO3 project - inspiring people to share!
*/
namespace TYPO3\CMS\Core\Package\Cache;
/**
* Interface for TYPO3 Package cache.
*
* This is an implementation detail to abstract the way the PackageManager
* stores and retrieves package information of installed TYPO3 packages (extensions).
*
* In non Composer mode, the implementation remains to be around the availability
* of a PackageStates.php file, which is used to generate a cache entry of Package objects.
* in Composer mode, the package information is put in a persistent artifact file.
*
* @internal
*/
interface PackageCacheInterface
{
/**
* Fetch the (package states) entry from a persistent or transient location
*/
public function fetch(): PackageCacheEntry;
/**
* Store the entry
*/
public function store(PackageCacheEntry $cacheEntry): void;
/**
* Invalidate the current entry (only applicable in non Composer mode)
*/
public function invalidate(): void;
/**
* Identifier that identifies the current state (typically a hash)
*/
public function getIdentifier(): string;
}