CDummyCache

Property Details

keyPrefix property

public string $keyPrefix;

a string prefixed to every cache key so that it is unique. Defaults to application ID.

Method Details

add() method

public boolean add(string $id, mixed $value, integer $expire=0, ICacheDependency $dependency=NULL)

public function add($id,$value,$expire=0,$dependency=null)
{
    return true;
}

Stores a value identified by a key into cache if the cache does not contain this key. Nothing will be done if the cache already contains the key.

delete() method

public boolean delete(string $id)

public function delete($id)
{
    return true;
}

Deletes a value with the specified key from cache

flush() method

public boolean flush()

public function flush()
{
    return true;
}

Deletes all values from cache. Be careful of performing this operation if the cache is shared by multiple applications.

get() method

public mixed get(string $id)

public function get($id)
{
    return false;
}

Retrieves a value from cache with a specified key.

init() method

public void init()

public function init()
{
    parent::init();
    if($this->keyPrefix===null)
        $this->keyPrefix=Yii::app()->getId();
}

Initializes the application component. This method overrides the parent implementation by setting default cache key prefix.

mget() method

public array mget(array $ids)

public function mget($ids)
{
    $results=array();
    foreach($ids as $id)
        $results[$id]=false;
    return $results;
}

Retrieves multiple values from cache with the specified keys. Some caches (such as memcache, apc) allow retrieving multiple cached values at one time, which may improve the performance since it reduces the communication cost. In case a cache doesn't support this feature natively, it will be simulated by this method.

offsetExists() method

public boolean offsetExists(string $id)

public function offsetExists($id)
{
    return false;
}

Returns whether there is a cache entry with a specified key. This method is required by the interface ArrayAccess.

offsetGet() method

public mixed offsetGet(string $id)

public function offsetGet($id)
{
    return false;
}

Retrieves the value from cache with a specified key. This method is required by the interface ArrayAccess.

offsetSet() method

public void offsetSet(string $id, mixed $value)

public function offsetSet($id, $value)
{
}

Stores the value identified by a key into cache. If the cache already contains such a key, the existing value will be replaced with the new ones. To add expiration and dependencies, use the set() method. This method is required by the interface ArrayAccess.

offsetUnset() method

public boolean offsetUnset(string $id)

public function offsetUnset($id)
{
}

Deletes the value with the specified key from cache This method is required by the interface ArrayAccess.

set() method

public boolean set(string $id, mixed $value, integer $expire=0, ICacheDependency $dependency=NULL)

public function set($id,$value,$expire=0,$dependency=null)
{
    return true;
}

Stores a value identified by a key into cache. If the cache already contains such a key, the existing value and expiration time will be replaced with the new ones.