Class RedisEngine
Redis storage engine for cache.
- Cake\Cache\CacheEngine uses Cake\Core\InstanceConfigTrait
-
Cake\Cache\Engine\RedisEngine
Method Detail
__destructsource public
__destruct( )
Disconnects from the redis server
_connectsource protected
_connect( )
Connects to a Redis server
Returns
booleanTrue if Redis server was connected
add( string $key , mixed $value )
Write data for key into cache if it doesn't exist already. If it already exists, it fails and returns false.
Parameters
- string
$key - Identifier for the data.
- mixed
$value - Data to be cached.
Returns
booleanTrue if the data was successfully cached, false on failure.
Link
https://github.com/phpredis/phpredis#setnx Overrides
Cake\Cache\CacheEngine::add() clear( boolean $check )
Delete all keys from the cache
Parameters
- boolean
$check - If true will check expiration, otherwise delete all.
Returns
booleanTrue if the cache was successfully cleared, false otherwise
clearGroupsource public
clearGroup( string $group )
Increments the group value to simulate deletion of all keys under a group old values will remain in storage until they expire.
Parameters
- string
$group - name of the group to be cleared
Returns
booleansuccess
Overrides
Cake\Cache\CacheEngine::clearGroup() decrementsource public
decrement( string $key , integer $offset 1 )
Decrements the value of an integer cached key
Parameters
- string
$key - Identifier for the data
- integer
$offset optional 1 - How much to subtract
Returns
boolean|integerNew decremented value, false otherwise
deletesource public
delete( string $key )
Delete a key from the cache
Parameters
- string
$key - Identifier for the data
Returns
booleanTrue if the value was successfully deleted, false if it didn't exist or couldn't be removed
groupssource public
groups( )
Returns the group value for each of the configured groups If the group initial value was not found, then it initializes the group accordingly.
Returns
arrayarray
Overrides
Cake\Cache\CacheEngine::groups() incrementsource public
increment( string $key , integer $offset 1 )
Increments the value of an integer cached key
Parameters
- string
$key - Identifier for the data
- integer
$offset optional 1 - How much to increment
Returns
boolean|integerNew incremented value, false otherwise
init( array $config [] )
Initialize the Cache Engine
Called automatically by the cache frontend
Parameters
- array
$config optional [] - array of setting for the engine
Returns
booleanTrue if the engine has been successfully initialized, false if not
Overrides
Cake\Cache\CacheEngine::init() read( string $key )
Read a key from the cache
Parameters
- string
$key - Identifier for the data
Returns
mixedThe cached data, or false if the data doesn't exist, has expired, or if there was an error fetching it
write( string $key , mixed $value )
Write data for key into cache.
Parameters
- string
$key - Identifier for the data
- mixed
$value - Data to be cached
Returns
booleanTrue if the data was successfully cached, false on failure
_keysource protected
_key( string $key )
Generates a safe key, taking account of the configured key prefix
Parameters
- string
$key - the key passed over
Returns
mixedstring $key or false
Throws
InvalidArgumentExceptionIf key's value is empty
deleteManysource public
deleteMany( array $keys )
Deletes keys from the cache
Parameters
- array
$keys - An array of identifiers for the data
Returns
arrayFor each provided cache key (given back as the array key) true if the value was successfully deleted, false if it didn't exist or couldn't be removed
gc( integer|null $expires null )
Garbage collection
Permanently remove all expired and deleted data
Parameters
- integer|null
$expires optional null - [optional] An expires timestamp, invalidating all data before.
key( string $key )
Generates a safe key for use with cache engine storage engines.
Parameters
- string
$key - the key passed over
Returns
boolean|stringstring key or false
readManysource public
readMany( array $keys )
Read multiple keys from the cache
Parameters
- array
$keys - An array of identifiers for the data
Returns
arrayFor each cache key (given as the array key) the cache data associated or false if the data doesn't exist, has expired, or if there was an error fetching it
writeManysource public
writeMany( array $data )
Write data for many keys into cache
Parameters
- array
$data - An array of data to be stored in the cache
Returns
arrayof bools for each key provided, true if the data was successfully cached, false on failure
_configDeletesource protected
_configDelete( string $key )
Delete a single config key
Parameters
- string
$key - Key to delete.
Throws
Cake\Core\Exception\Exceptionif attempting to clobber existing config
_configReadsource protected
_configRead( string|null $key )
Read a config variable
Parameters
- string|null
$key - Key to read.
Returns
mixedmixed
_configWritesource protected
_configWrite( string|array $key , mixed $value , boolean|string $merge false )
Write a config variable
Parameters
- string|array
$key - Key to write to.
- mixed
$value - Value to write.
- boolean|string
$merge optional false - True to merge recursively, 'shallow' for simple merge, false to overwrite, defaults to false.
Throws
Cake\Core\Exception\Exceptionif attempting to clobber existing config
configsource public
config( string|array|null $key null , mixed|null $value null , boolean $merge true )
Usage
Reading the whole config:
$this->config();
Reading a specific value:
$this->config('key');
Reading a nested value:
$this->config('some.nested.key');
Setting a specific value:
$this->config('key', $value);
Setting a nested value:
$this->config('some.nested.key', $value);
Updating multiple config settings at the same time:
$this->config(['one' => 'value', 'another' => 'value']);
Parameters
- string|array|null
$key optional null - The key to get/set, or a complete array of configs.
- mixed|null
$value optional null - The value to set.
- boolean
$merge optional true - Whether to recursively merge or overwrite existing config, defaults to true.
Returns
mixedConfig value being read, or the object itself on write operations.
Throws
Cake\Core\Exception\ExceptionWhen trying to set a key that is invalid.
configShallowsource public
configShallow( string|array $key , mixed|null $value null )
Merge provided config with existing config. Unlike config() which does a recursive merge for nested keys, this method does a simple merge.
Setting a specific value:
$this->config('key', $value);
Setting a nested value:
$this->config('some.nested.key', $value);
Updating multiple config settings at the same time:
$this->config(['one' => 'value', 'another' => 'value']);
Parameters
- string|array
$key - The key to set, or a complete array of configs.
- mixed|null
$value optional null - The value to set.
Returns
mixed$this The object itself.
Properties summary
protected Redis
Redis wrapper.
$_defaultConfigsource
protected array
The default config used unless overridden by runtime configuration
-
database database number to use for connection. -
duration Specify how long items in this cache configuration last. -
groups List of groups or 'tags' associated to every key stored in this config. handy for deleting a complete group from cache. -
password Redis server password. -
persistent Connect to the Redis server with a persistent connection -
port port number to the Redis server. -
prefix Prefix appended to all entries. Good for when you need to share a keyspace with either another cache config or another application. -
probability Probability of hitting a cache gc cleanup. Setting to 0 will disable cache::gc from ever being called automatically. -
server URL or ip to the Redis server host. -
timeout timeout in seconds (float). -
unix_socket Path to the unix socket file (default: false)
[
'database' => 0,
'duration' => 3600,
'groups' => [],
'password' => false,
'persistent' => true,
'port' => 6379,
'prefix' => 'cake_',
'probability' => 100,
'host' => null,
'server' => '127.0.0.1',
'timeout' => 0,
'unix_socket' => false,
]
$_groupPrefixsource
protected string
Contains the compiled string with all groups prefixes to be prepended to every key in this cache engine
protected array
Runtime config
$_configInitializedsource
protected boolean
Whether the config property has already been configured with defaults