/**
* (PHP 5 >= 5.0.0)<br/>
* Offset to retrieve
* @link http://php.net/manual/en/arrayaccess.offsetget.php
*
* @param mixed $offset <p>
* The offset to retrieve.
* </p>
*
* @todo add support for Tree Based RidBags
* @return ID The RecordID instance at the given offset.
*/
public function offsetGet($offset)
{
if (isset($this->items[$offset])) {
return $this->items[$offset];
}
if ($this->type === self::EMBEDDED) {
$start = $this->baseOffset + $offset * 10;
$cluster = Binary::unpackShort(substr($this->deserialized, $start, 2));
$position = Binary::unpackLong(substr($this->deserialized, $start, 8));
$this->items[$offset] = new ID($cluster, $position);
} else {
$this->items[$offset] = false;
}
return $this->items[$offset];
}
/**
* Read a short from the socket.
*
* @return int the short read
*/
protected function readShort()
{
return Binary::unpackShort($this->socket->read(2));
}