Class XcacheEngine

_auth()source protected

_auth( boolean $reverse false )

Populates and reverses $_SERVER authentication values Makes necessary changes (and reverting them back) in $_SERVER

This has to be done because xcache_clear_cache() needs to pass Basic Http Auth (see xcache.admin configuration settings)

Parameters

boolean $reverse optional false

Revert changes

add()source public

add( string $key , mixed $value , integer $duration )

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.

integer $duration

How long to cache the data, in seconds.

Returns

boolean
True if the data was successfully cached, false on failure.

Overrides

CacheEngine::add()

clear()source public

clear( boolean $check )

Delete all keys from the cache

Parameters

boolean $check

If true no deletes will occur and instead CakePHP will rely on key TTL values.

Returns

boolean
True if the cache was successfully cleared, false otherwise

clearGroup()source 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

The group to clear.

Returns

boolean
success

Overrides

CacheEngine::clearGroup()

decrement()source public

decrement( string $key , integer $offset 1 )

Decrements the value of an integer cached key. If the cache key is not an integer it will be treated as 0

Parameters

string $key

Identifier for the data

integer $offset optional 1

How much to subtract

Returns

New
decremented value, false otherwise

delete()source public

delete( string $key )

Delete a key from the cache

Parameters

string $key

Identifier for the data

Returns

boolean
True if the value was successfully deleted, false if it didn't exist or couldn't be removed

groups()source 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

array

Overrides

CacheEngine::groups()

increment()source public

increment( string $key , integer $offset 1 )

Increments the value of an integer cached key If the cache key is not an integer it will be treated as 0

Parameters

string $key

Identifier for the data

integer $offset optional 1

How much to increment

Returns

New
incremented value, false otherwise

init()source public

init( array $settings array() )

Initialize the Cache Engine

Called automatically by the cache frontend To reinitialize the settings call Cache::engine('EngineName', [optional] settings = array());

Parameters

array $settings optional array()

array of setting for the engine

Returns

boolean
True if the engine has been successfully initialized, false if not

Overrides

CacheEngine::init()

read()source public

read( string $key )

Read a key from the cache

Parameters

string $key

Identifier for the data

Returns

mixed
The cached data, or false if the data doesn't exist, has expired, or if there was an error fetching it

write()source public

write( string $key , mixed $value , integer $duration )

Write data for key into cache

Parameters

string $key

Identifier for the data

mixed $value

Data to be cached

integer $duration

How long to cache the data, in seconds

Returns

boolean
True if the data was successfully cached, false on failure

gc()source public

gc( integer $expires null )

Garbage collection

Permanently remove all expired and deleted data

Parameters

integer $expires optional null

[optional] An expires timestamp, invalidating all data before.

key()source public

key( string $key )

Generates a safe key for use with cache engine storage engines.

Parameters

string $key

the key passed over

Returns

mixed
string $key or false

settings()source public

settings( )

Cache Engine settings

Returns

array
settings

array()