\Doctrine\Common\CacheChainCache

Cache provider that allows to easily chain multiple cache providers

Summary

Methods

Properties

Constants

setNamespace()
getNamespace()
fetch()
fetchMultiple()
contains()
save()
delete()
getStats()
flushAll()
deleteAll()
__construct()

No public properties found

DOCTRINE_NAMESPACE_CACHEKEY

doFetchMultiple()
doFetch()
doContains()
doSave()
doDelete()
doFlush()
doGetStats()

No protected properties found

N/A

getNamespacedId()
getNamespaceCacheKey()
getNamespaceVersion()

$namespace
$namespaceVersion
$cacheProviders

N/A

File: vendor/doctrine/cache/lib/Doctrine/Common/Cache/ChainCache.php
Package: Default
Class hierarchy: \Doctrine\Common\Cache\CacheProvider

\Doctrine\Common\Cache\ChainCache

Constants

DOCTRINE_NAMESPACE_CACHEKEY

DOCTRINE_NAMESPACE_CACHEKEY = 'DoctrineNamespaceCacheKey[%s]'

Properties

$namespace

$namespace : string

The namespace to prefix all cache ids with.

Type

string

$namespaceVersion

$namespaceVersion : integer|null

The namespace version.

Type

integer|null

$cacheProviders

$cacheProviders : array<mixed,\Doctrine\Common\Cache\CacheProvider>

Type

array<mixed,\Doctrine\Common\Cache\CacheProvider>

Methods

setNamespace()

setNamespace(string  $namespace) : void

Sets the namespace to prefix all cache ids with.

Parameters

string

$namespace

getNamespace()

getNamespace() : string

Retrieves the namespace that prefixes all cache ids.

Returns

string

fetch()

fetch(string  $id) : mixed

Fetches an entry from the cache.

Parameters

string

$id

The id of the cache entry to fetch.

Returns

mixed —

The cached data or FALSE, if no cache entry exists for the given id.

fetchMultiple()

fetchMultiple(array  $keys) : array<mixed,mixed>

Returns an associative array of values for keys is found in cache.

Parameters

array

$keys

Array of keys to retrieve from cache

Returns

array<mixed,mixed> —

Array of retrieved values, indexed by the specified keys. Values that couldn't be retrieved are not contained in this array.

contains()

contains(string  $id) : boolean

Tests if an entry exists in the cache.

Parameters

string

$id

The cache id of the entry to check for.

Returns

boolean —

TRUE if a cache entry exists for the given cache id, FALSE otherwise.

save()

save(string  $id, mixed  $data, integer  $lifeTime) : boolean

Puts data into the cache.

If a cache entry with the given id already exists, its data will be replaced.

Parameters

string	$id	The cache id.
mixed	$data	The cache entry/data.
integer	$lifeTime	The lifetime in number of seconds for this cache entry. If zero (the default), the entry never expires (although it may be deleted from the cache to make place for other entries).

Returns

boolean —

TRUE if the entry was successfully stored in the cache, FALSE otherwise.

delete()

delete(string  $id) : boolean

Deletes a cache entry.

Parameters

string

$id

The cache id.

Returns

boolean —

TRUE if the cache entry was successfully deleted, FALSE otherwise. Deleting a non-existing entry is considered successful.

getStats()

getStats() : array|null

Retrieves cached information from the data store.

The server's statistics array has the following values:

hits Number of keys that have been requested and found present.
misses Number of items that have been requested and not found.
uptime Time that the server is running.
memory_usage Memory used by this server to store items.
memory_available Memory allowed to use for storage.

Returns

array|null —

An associative array with server's statistics if available, NULL otherwise.

flushAll()

flushAll() : boolean

Flushes all cache entries, globally.

Returns

boolean —

TRUE if the cache entries were successfully flushed, FALSE otherwise.

deleteAll()

deleteAll() : boolean

Deletes all cache entries in the current cache namespace.

Returns

boolean —

TRUE if the cache entries were successfully deleted, FALSE otherwise.

__construct()

__construct(array<mixed,\Doctrine\Common\Cache\CacheProvider>  $cacheProviders = array())

Constructor

Parameters

array<mixed,\Doctrine\Common\Cache\CacheProvider>

$cacheProviders

doFetchMultiple()

doFetchMultiple(array  $keys) : array

Default implementation of doFetchMultiple. Each driver that supports multi-get should owerwrite it.

Parameters

array

$keys

Array of keys to retrieve from cache

Returns

array —

Array of values retrieved for the given keys.

doFetch()

doFetch(string  $id) : mixed|boolean

Fetches an entry from the cache.

Parameters

string

$id

The id of the cache entry to fetch.

Returns

mixed|boolean —

The cached data or FALSE, if no cache entry exists for the given id.

doContains()

doContains(string  $id) : boolean

Tests if an entry exists in the cache.

Parameters

string

$id

The cache id of the entry to check for.

Returns

boolean —

TRUE if a cache entry exists for the given cache id, FALSE otherwise.

doSave()

doSave(string  $id, string  $data, integer  $lifeTime) : boolean

Puts data into the cache.

Parameters

string	$id	The cache id.
string	$data	The cache entry/data.
integer	$lifeTime	The lifetime. If != 0, sets a specific lifetime for this cache entry (0 => infinite lifeTime).

Returns

boolean —

TRUE if the entry was successfully stored in the cache, FALSE otherwise.

doDelete()

doDelete(string  $id) : boolean

Deletes a cache entry.

Parameters

string

$id

The cache id.

Returns

boolean —

TRUE if the cache entry was successfully deleted, FALSE otherwise.

doFlush()

doFlush() : boolean

Flushes all cache entries.

Returns

boolean —

TRUE if the cache entries were successfully flushed, FALSE otherwise.

doGetStats()

doGetStats() : array|null

Retrieves cached information from the data store.

Returns

array|null —

An associative array with server's statistics if available, NULL otherwise.

getNamespacedId()

getNamespacedId(string  $id) : string

Prefixes the passed id with the configured namespace value.

Parameters

string

$id

The id to namespace.

Returns

string —

The namespaced id.

getNamespaceCacheKey()

getNamespaceCacheKey() : string

Returns the namespace cache key.

Returns

string

getNamespaceVersion()

getNamespaceVersion() : integer

Returns the namespace version.

Returns

integer