package ca.ubc.cs.spl.aspectPatterns.examples.memento.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.aspectPatterns.
*
* For more details and the latest version of this code, please see:
* http://www.cs.ubc.ca/labs/spl/projects/aodps.html
*
* Contributor(s):
*/
/**
* Implements a sample <i>Originator</i> class. Objects of this particular
* <i>Originator</i> have state, an int representing the number of time
* the <code>increment()</code> method was called.
*
* @author Jan Hannemann
* @author Gregor Kiczales
* @version 1.1, 02/12/04
*/
public class Counter {
/**
* the number of times <code>increment()</code> was called on this object
*/
protected int currentValue = 0;
/**
* increments the counter (this <i>Originator</i>'s state) by one
*/
public void increment() {
currentValue++;
}
/**
* Displays the state of this <i>Originator</i>
*/
public void show() {
System.out.println("Originator value is " + currentValue);
}
/**
* Creates a <i>Memento</i> from this <i>Originator</i>, storing the
* current state
*/
public CounterMemento createMemento() {
return new CounterMemento(currentValue);
}
/**
* Restores this <i>Originator</i> to former state stored by the
* memento passed
*
* @param memento the <i>Memento</i> that stores the prior state
*/
public void setMemento(CounterMemento memento) {
currentValue = memento.getState();
}
}