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Java > Open Source Codes > test > patterns > readwritelock > Account


1 /*
2   * JBoss, Home of Professional Open Source
3   * Copyright 2005, JBoss Inc., and individual contributors as indicated
4   * by the @authors tag. See the copyright.txt in the distribution for a
5   * full listing of individual contributors.
6   *
7   * This is free software; you can redistribute it and/or modify it
8   * under the terms of the GNU Lesser General Public License as
9   * published by the Free Software Foundation; either version 2.1 of
10   * the License, or (at your option) any later version.
11   *
12   * This software is distributed in the hope that it will be useful,
13   * but WITHOUT ANY WARRANTY; without even the implied warranty of
14   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15   * Lesser General Public License for more details.
16   *
17   * You should have received a copy of the GNU Lesser General Public
18   * License along with this software; if not, write to the Free
19   * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20   * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21   */
22 package test.patterns.readwritelock;
23 /**
24  * @version <tt>$Revision: 37406 $</tt>
25  * @author <a HREF="mailto:chussenet@yahoo.com">{Claude Hussenet Independent Consultant}</a>.
26  */
27 public class Account
28 {
29
30   private float balance;
31
32    public Account(float balance)
33    {
34     this.balance=balance;
35    }
36
37    public void debit(float amount)
38    {
39        float currentBalance = balance;
40        process(amount);
41        this.balance = currentBalance-amount;
42    }
43
44    public void credit(float amount)
45    {
46        float currentBalance = balance;
47        process(amount);
48        this.balance = currentBalance+amount;
49    }
50
51    public String JavaDoc toString()
52    {
53      return new StringBuffer JavaDoc("Balance: $").append(this.balance).toString();
54    }
55    public float getBalance()
56    {
57     return balance;
58    }
59
60    public void process(float ll)
61    {
62       try {
63
64           Thread.currentThread().sleep((long)ll);
65       }
66       catch (Exception JavaDoc e)
67       {
68           System.out.println(e);
69       }
70    }
71 }
72
73
74
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