public int compare_with(Object obj) throws ObjectInvalid { if (current == null || obj == null) { throw new ObjectInvalid(); } check_object(obj); return ops.key_compare(current.key, ((KeyNode) obj).key); };
public int compare(Object obj1, Object obj2) throws ObjectInvalid { if (obj1 == null || obj2 == null) { throw new ObjectInvalid(); } check_object(obj1); check_object(obj2); return ops.key_compare(((KeyNode) obj1).key, ((KeyNode) obj2).key); };