@abc.abstractmethod<EOL><INDENT>def match_ancestor_log_id(self, log_id, match):<DEDENT>
pass<EOL>
Sets the log ``Id`` for this query to match logs that have the specified log as an ancestor.

        :param log_id: a log ``Id``
        :type log_id: ``osid.id.Id``
        :param match: ``true`` for a positive match, ``false`` for a negative match
        :type match: ``boolean``
        :raise: ``NullArgument`` -- ``log_id`` is ``null``

        *compliance: mandatory -- This method must be implemented.*