FrontendInterface.php

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<?php
namespace TYPO3\CMS\Core\Cache\Frontend;

interface FrontendInterface
{
    const TAG_CLASS = '%CLASS%';
    const TAG_PACKAGE = '%PACKAGE%';
    const PATTERN_ENTRYIDENTIFIER = '/^[a-zA-Z0-9_%\\-&]{1,250}$/';
    const PATTERN_TAG = '/^[a-zA-Z0-9_%\\-&]{1,250}$/';
    public function getIdentifier();

    public function getBackend();

    public function set($entryIdentifier, $data, array $tags = array(), $lifetime = NULL);

    public function get($entryIdentifier);

    public function getByTag($tag);

    public function has($entryIdentifier);

    public function remove($entryIdentifier);

    public function flush();

    public function flushByTag($tag);

    public function collectGarbage();

    public function isValidEntryIdentifier($identifier);

    public function isValidTag($tag);

}