# # This file contains the Ruby code from Program 7.17 of # "Data Structures and Algorithms # with Object-Oriented Design Patterns in Ruby" # by Bruno R. Preiss. # # Copyright (c) 2004 by Bruno R. Preiss, P.Eng. All rights reserved. # # http://www.brpreiss.com/books/opus8/programs/pgm07_17.txt # class OrderedListAsLinkedList < OrderedList class Cursor < Cursor def insertAfter(obj) @element.insertAfter(obj) @list.count += 1 end end end