/**
* Constructor
*
* @param string $writeprefix Prefix of the stream (optional). Unlike the JPATH_*, this has a final path separator!
* @param string $readprefix The read prefix (optional).
* @param array $context The context options (optional).
*
* @since 1.7.0
*/
public function __construct($writeprefix = '', $readprefix = '', $context = array())
{
$this->writeprefix = $writeprefix;
$this->readprefix = $readprefix;
$this->contextOptions = $context;
$this->_buildContext();
}