<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Cache\Simple;
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use Psr\SimpleCache\CacheInterface as Psr16CacheInterface;
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use Symfony\Component\Cache\Adapter\NullAdapter;
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use Symfony\Contracts\Cache\CacheInterface;
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@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.3, use "%s" and type-hint for "%s" instead.', NullCache::class, NullAdapter::class, CacheInterface::class), \E_USER_DEPRECATED);
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/**
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* @deprecated since Symfony 4.3, use NullAdapter and type-hint for CacheInterface instead.
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*/
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class NullCache implements Psr16CacheInterface
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{
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/**
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* {@inheritdoc}
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*/
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public function get($key, $default = null)
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{
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return $default;
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}
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/**
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* {@inheritdoc}
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*
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* @return iterable
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*/
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public function getMultiple($keys, $default = null)
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{
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foreach ($keys as $key) {
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yield $key => $default;
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}
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}
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/**
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* {@inheritdoc}
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*
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* @return bool
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*/
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public function has($key)
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{
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return false;
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}
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/**
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* {@inheritdoc}
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*
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* @return bool
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*/
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public function clear()
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{
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return true;
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}
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/**
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* {@inheritdoc}
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*
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* @return bool
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*/
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public function delete($key)
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{
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return true;
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}
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/**
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* {@inheritdoc}
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*
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* @return bool
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*/
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public function deleteMultiple($keys)
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{
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return true;
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}
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/**
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* {@inheritdoc}
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*
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* @return bool
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*/
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public function set($key, $value, $ttl = null)
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{
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return false;
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}
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/**
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* {@inheritdoc}
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*
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* @return bool
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*/
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public function setMultiple($values, $ttl = null)
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{
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return false;
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}
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}
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