FUNCTION acyclic_action_method_relationship
(relation : action_method_relationship, relatives : SET [1:?] OF action_method, specific_relation : STRING) : BOOLEAN;
LOCAL
x : SET OF action_method_relationship;
END_LOCAL;
IF relation.relating_method IN relatives THEN
RETURN (FALSE);
END_IF;
x := QUERY(am <* bag_to_set(USEDIN(relation.relating_method, 'ACTION_SCHEMA.' + 'ACTION_METHOD_RELATIONSHIP.' + 'RELATED_METHOD')) | specific_relation IN TYPEOF(am));
REPEAT i := 1 TO HIINDEX(x);
IF NOT acyclic_action_method_relationship(x[i], relatives + relation.relating_method, specific_relation) THEN
RETURN (FALSE);
END_IF;
END_REPEAT;
RETURN (TRUE); END_FUNCTION; -- acyclic_action_method_relationship
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