/**
* {@inheritdoc}
*/
public function increment($key, $value = 1)
{
if ($value < 1) {
throw new \InvalidArgumentException('Value of incrementation must be greater that nil.');
}
if ($value === 1) {
return $this->redis->incr($key);
}
return $this->redis->incrBy($key, $value);
}
/**
* {@inheritdoc}
*/
public function clear($key = null)
{
if (is_null($key)) {
$this->redis->flushDB();
return true;
}
$keyString = $this->makeKeyString($key, true);
$keyReal = $this->makeKeyString($key);
$this->redis->incr($keyString);
// increment index for children items
$this->redis->delete($keyReal);
// remove direct item.
$this->keyCache = array();
return true;
}
