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Wed Mar 24 16:00:00 GMT 2004
Main
package examples.templateMethod.java; /* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- * * This file is part of the design patterns project at UBC * * The contents of this file are subject to the Mozilla Public License * Version 1.1 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * either http://www.mozilla.org/MPL/ or http://aspectj.org/MPL/. * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is ca.ubc.cs.spl.pattern. * * Contributor(s): */ /** * Implements the driver for the Template Method design pattern example.<p> * * Intent: <i>Define the skeleton of an algorithm in an operation, deferring * some steps to subclasses. Template Method lets subclasses redefine certain * steps of an algorithm without changing the algorithm's structure</i><p> * * Participatng objects are <code>SimpleCreator</code> and * <code>FancyCreator</code> as <i>ConcreteClass</i>es. The * <i>AbstractClass</i> is <code>Creator</code>. * <p> * * In this example, the template method <code>decorate(String)</code> calls * modifies a string in three steps and returns the result. The SimpleCreator * does not change the string much, but adds a period at the end of it. The * FancyCreator turns the string to lowercase, then capitalizes all * consonants and adds an explanantion to it. * * <p><i>This is the Java version.</i><p> * * Note that <i>AbstractClass</i> does in fact have to be abstract, to * make it possible to define a default implementation for the template * method. * * @author Jan Hannemann * @author Gregor Kiczales * @version 1.0, 05/13/02 * * @see Creator * @see SimpleCreator * @see FancyCreator */ public class Main { /** * Implements the driver for the Template Method design pattern example.<p> * * In this example, the template method <code>decorate(String)</code> calls * modifies a string in three steps and returns the result. The SimpleCreator * does not change the string much, but adds a period at the end of it. The * FancyCreator turns the string to lowercase, then capitalizes all * consonants and adds an explanantion to it. * * @param args the command line parameters, unused */ public static void main(String[] args) { String original = "This Is The Original String To Be Processed"; Creator c1 = new SimpleCreator(); Creator c2 = new FancyCreator(); System.out.println("<Original>"); System.out.println(original); System.out.println("<SimpleCreator>"); System.out.println(c1.decorate(original)); System.out.println("<FancyCreator>"); System.out.println(c2.decorate(original)); } }
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