/**
* @param string $key
*
* @return mixed
*/
public function search($key)
{
$hash = $this->hash(trim($key));
$value = $this->storage->read($this->dataLength, $this->position($hash) + $this->dataLength);
$value = trim($value);
if ('' == $value) {
return null;
}
return $value;
}
/**
* @param int $address
*
* @return string
*/
private function node($address)
{
return $this->storage->read($this->fullLength, $address * $this->fullLength);
}
