/**
* @override
*/
public function parse(\Doctrine\ORM\Query\Parser $parser)
{
$parser->match(Lexer::T_IDENTIFIER);
$parser->match(Lexer::T_OPEN_PARENTHESIS);
$this->pathExpression = $parser->SingleValuedAssociationPathExpression();
$parser->match(Lexer::T_CLOSE_PARENTHESIS);
}