Defines a default cache implementation.
This is Drupal's default cache implementation. It uses the database to store cached data. Each cache bin corresponds to a database table by the same name.
Hierarchy
- class \Drupal\Core\Cache\DatabaseBackend implements CacheBackendInterface
Related topics
- Cache API
- Information about the Drupal Cache API
File
- core/lib/Drupal/Core/Cache/DatabaseBackend.php, line 17
Namespace
Drupal\Core\Cache
Members
| Name | Modifiers | Type | Description |
|---|---|---|---|
| CacheBackendInterface::CACHE_PERMANENT | constant | Indicates that the item should never be removed unless explicitly deleted. | |
| DatabaseBackend::$bin | protected | property | |
| DatabaseBackend::$checksumProvider | protected | property | The cache tags checksum provider. |
| DatabaseBackend::$connection | protected | property | The database connection. |
| DatabaseBackend::catchException | protected | function | Act on an exception when cache might be stale. |
| DatabaseBackend::delete | public | function | Deletes an item from the cache. Overrides CacheBackendInterface::delete |
| DatabaseBackend::deleteAll | public | function | Deletes all cache items in a bin. Overrides CacheBackendInterface::deleteAll |
| DatabaseBackend::deleteMultiple | public | function | Deletes multiple items from the cache. Overrides CacheBackendInterface::deleteMultiple |
| DatabaseBackend::doSetMultiple | protected | function | Stores multiple items in the persistent cache. |
| DatabaseBackend::ensureBinExists | protected | function | Check if the cache bin exists and create it if not. |
| DatabaseBackend::garbageCollection | public | function | Performs garbage collection on a cache bin. Overrides CacheBackendInterface::garbageCollection |
| DatabaseBackend::get | public | function | Returns data from the persistent cache. Overrides CacheBackendInterface::get |
| DatabaseBackend::getMultiple | public | function | Returns data from the persistent cache when given an array of cache IDs. Overrides CacheBackendInterface::getMultiple |
| DatabaseBackend::invalidate | public | function | Marks a cache item as invalid. Overrides CacheBackendInterface::invalidate |
| DatabaseBackend::invalidateAll | public | function | Marks all cache items as invalid. Overrides CacheBackendInterface::invalidateAll |
| DatabaseBackend::invalidateMultiple | public | function | Marks cache items as invalid. Overrides CacheBackendInterface::invalidateMultiple |
| DatabaseBackend::normalizeCid | protected | function | Normalizes a cache ID in order to comply with database limitations. |
| DatabaseBackend::prepareItem | protected | function | Prepares a cached item. |
| DatabaseBackend::removeBin | public | function | Remove a cache bin. Overrides CacheBackendInterface::removeBin |
| DatabaseBackend::schemaDefinition | public | function | Defines the schema for the {cache_*} bin tables. |
| DatabaseBackend::set | public | function | Stores data in the persistent cache. Overrides CacheBackendInterface::set |
| DatabaseBackend::setMultiple | public | function | Store multiple items in the persistent cache. Overrides CacheBackendInterface::setMultiple |
| DatabaseBackend::__construct | public | function | Constructs a DatabaseBackend object. |
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