def get_objectives(self):
if self.retrieved:<EOL><INDENT>raise errors.IllegalState('<STR_LIT>')<EOL><DEDENT>self.retrieved = True<EOL>return objects.ObjectiveList(self._results, runtime=self._runtime)<EOL>
Gets the objective list resulting from the search.

        return: (osid.learning.ObjectiveList) - the objective list
        raise:  IllegalState - list already retrieved
        *compliance: mandatory -- This method must be implemented.*