/**
* Gets a property value by navagating a dot separated path
* that dereferences elements within the dataspace.
* If an element cannot be dereferenced or is not set, the
* value NULL is returned.
* @param string name of property
* @return mixed value of property or NULL if not found
* @access public
*/
function getPath($path)
{
if (($pos = strpos($path, '.')) === FALSE) {
return $this->get($path);
} else {
$value = $this->get(substr($path, 0, $pos));
$dataspace =& DataSpace::makeDataSpace($value);
if (is_null($dataspace)) {
return NULL;
}
return $dataspace->getPath(substr($path, $pos + 1));
}
}
