class MemoryCache

Same name and namespace in other branches
  1. 11.x core/lib/Drupal/Core/Cache/MemoryCache/MemoryCache.php \Drupal\Core\Cache\MemoryCache\MemoryCache
  2. 10 core/lib/Drupal/Core/Cache/MemoryCache/MemoryCache.php \Drupal\Core\Cache\MemoryCache\MemoryCache
  3. 8.9.x core/lib/Drupal/Core/Cache/MemoryCache/MemoryCache.php \Drupal\Core\Cache\MemoryCache\MemoryCache

Defines a memory cache implementation.

Stores cache items in memory using a PHP array.

Hierarchy

Expanded class hierarchy of MemoryCache

Related topics

5 files declare their use of MemoryCache
ConfigEntityStorageTest.php in core/tests/Drupal/Tests/Core/Config/Entity/ConfigEntityStorageTest.php
EntityStorageDeprecationTest.php in core/tests/Drupal/Tests/Core/Entity/EntityStorageDeprecationTest.php
KeyValueEntityStorageTest.php in core/tests/Drupal/Tests/Core/Entity/KeyValueStore/KeyValueEntityStorageTest.php
SqlContentEntityStorageTest.php in core/tests/Drupal/Tests/Core/Entity/Sql/SqlContentEntityStorageTest.php
Contains \Drupal\Tests\Core\Entity\Sql\SqlContentEntityStorageTest.
UserSessionTest.php in core/tests/Drupal/Tests/Core/Session/UserSessionTest.php
3 string references to 'MemoryCache'
book.services.yml in core/modules/book/book.services.yml
core/modules/book/book.services.yml
core.services.yml in core/core.services.yml
core/core.services.yml
jsonapi.services.yml in core/modules/jsonapi/jsonapi.services.yml
core/modules/jsonapi/jsonapi.services.yml
3 services use MemoryCache
book.memory_cache in core/modules/book/book.services.yml
Drupal\Core\Cache\MemoryCache\MemoryCache
cache.jsonapi_memory in core/modules/jsonapi/jsonapi.services.yml
Drupal\Core\Cache\MemoryCache\MemoryCache
entity.memory_cache in core/core.services.yml
Drupal\Core\Cache\MemoryCache\MemoryCache

File

core/lib/Drupal/Core/Cache/MemoryCache/MemoryCache.php, line 15

Namespace

Drupal\Core\Cache\MemoryCache
View source
class MemoryCache extends MemoryBackend implements MemoryCacheInterface {
  
  /**
   * Prepares a cached item.
   *
   * Checks that items are either permanent or did not expire, and returns data
   * as appropriate.
   *
   * @param object $cache
   *   An item loaded from self::get() or self::getMultiple().
   * @param bool $allow_invalid
   *   (optional) If TRUE, cache items may be returned even if they have expired
   *   or been invalidated. Defaults to FALSE.
   *
   * @return mixed
   *   The item with data as appropriate or FALSE if there is no
   *   valid item to load.
   */
  protected function prepareItem($cache, $allow_invalid = FALSE) {
    if (!isset($cache->data)) {
      return FALSE;
    }
    // Check expire time.
    $cache->valid = $cache->expire == static::CACHE_PERMANENT || $cache->expire >= $this->getRequestTime();
    if (!$allow_invalid && !$cache->valid) {
      return FALSE;
    }
    return $cache;
  }
  
  /**
   * {@inheritdoc}
   */
  public function set($cid, $data, $expire = MemoryCacheInterface::CACHE_PERMANENT, array $tags = []) {
    assert(Inspector::assertAllStrings($tags), 'Cache tags must be strings.');
    $tags = array_unique($tags);
    $this->cache[$cid] = (object) [
      'cid' => $cid,
      'data' => $data,
      'created' => $this->getRequestTime(),
      'expire' => $expire,
      'tags' => $tags,
    ];
  }

}

Members

Title Sort descending Modifiers Object type Summary Overriden Title
CacheBackendInterface::CACHE_PERMANENT constant Indicates that the item should never be removed unless explicitly deleted.
MemoryBackend::$cache protected property Array to store cache objects.
MemoryBackend::delete public function
MemoryBackend::deleteAll public function
MemoryBackend::deleteMultiple public function
MemoryBackend::garbageCollection public function
MemoryBackend::get public function
MemoryBackend::getMultiple public function
MemoryBackend::getRequestTime protected function Wrapper method for REQUEST_TIME constant.
MemoryBackend::invalidate public function
MemoryBackend::invalidateAll public function
MemoryBackend::invalidateMultiple public function
MemoryBackend::invalidateTags public function
MemoryBackend::removeBin public function
MemoryBackend::reset public function Reset statically cached variables.
MemoryBackend::setMultiple public function
MemoryBackend::__sleep public function Prevents data stored in memory backends from being serialized.
MemoryCache::prepareItem protected function Prepares a cached item. Overrides MemoryBackend::prepareItem
MemoryCache::set public function Stores data in the persistent cache. Overrides MemoryBackend::set

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