Yurttas/PL/OOL/CS/F/07/00/A00.cs

  1/**
  2 *  Copyright(C) 2004
  3 *  All Rights Reserved. Salih Yurttas, ZCubes, BitsOfCode Software Systems, Inc..
  4 *
  5 *  Permission to use, copy, modify, and distribute this
  6 *  software and its documentation for EDUCATIONAL purposes
  7 *  and without fee is hereby granted provided that this
  8 *  copyright notice appears in all copies.
  9 *
 10 *  @date   : January 1, 2004.
 11 *  @author : Salih Yurttas, Yi Yang.
 12 */
 13
 14
 15using System;
 16using System.Reflection;
 17
 18namespace Attibute00
 19{
 20
 21  // create custom attribute to be assigned to class members
 22  [AttributeUsage(AttributeTargets.Class |
 23     AttributeTargets.Constructor        |
 24     AttributeTargets.Field              |
 25     AttributeTargets.Method             |
 26     AttributeTargets.Property,
 27     AllowMultiple = true)]
 28  public class BugFixAttribute : System.Attribute
 29  {
 30    // private member data 
 31    private int     bugID;
 32    private string  comment;
 33    private string  date;
 34    private string  programmer;
 35
 36    // attribute constructor for 
 37    // positional parameters
 38    public BugFixAttribute(int bugID,  string programmer, string date)
 39    {
 40      this.bugID = bugID;
 41      this.programmer = programmer;
 42      this.date = date;
 43    }
 44
 45    // accessor
 46    public int BugID
 47    {
 48      get
 49      {
 50        return bugID;
 51      }
 52    }
 53
 54    // property for named parameter
 55    public string Comment
 56    {
 57      get
 58      {
 59        return comment;
 60      }
 61      set
 62      {
 63        comment = value;
 64      }
 65    }
 66
 67    // accessor
 68    public string Date
 69    {
 70      get
 71      {
 72        return date;
 73      }
 74    }
 75
 76    // accessor
 77    public string Programmer
 78    {
 79      get
 80      {
 81        return programmer;
 82      }
 83    }
 84  }
 85
 86  // ********* assign the attributes to the class ********
 87  [BugFixAttribute(100,"SY","01/03/03")]
 88  [BugFixAttribute(107,"Haiwen","01/04/04", Comment="Fixed off by one errors")]
 89  [BugFixAttribute(103,"Yi","07/31/04", Comment="Fix one bug in class A00")]
 90  public class A00
 91  {
 92    [BugFixAttribute(103,"Yi","08/01/04", Comment="Fix the bug in function DoFun1")]
 93    public double DoFunc1(double p1)
 94    {
 95      return p1 + DoFunc2(p1);
 96    }
 97
 98    public double DoFunc2(double p1)
 99    {
100      return p1/3;
101    }
102  }
103
104  public class Test00
105  {
106
107    public static void PrintAttributes1(BugFixAttribute bfa)
108    {
109      Console.WriteLine("BugID: {0}", bfa.BugID);
110      Console.WriteLine("Programmer: {0}", bfa.Programmer);
111      Console.WriteLine("Date: {0}", bfa.Date);
112      Console.WriteLine("Comment: {0}", bfa.Comment);
113    }
114
115    /*public static void Main(string[] args)
116    {
117      // get the member information and use it to
118      // retrieve the custom attributes
119      MemberInfo inf = typeof(Sample);
120      object[] attributes;
121      attributes = inf.GetCustomAttributes(typeof(BugFixAttribute), false);
122
123      //print out the attributes for class
124      Console.WriteLine("printing class attributes");
125      foreach(Object attribute in attributes)
126      {
127        PrintAttributes((BugFixAttribute)attribute);
128      }
129
130      //get the csutomer attributes for the methods 
131      Type theType = Type.GetType("AttibuteSample.Sample");
132      MemberInfo[] methodInfo = theType.GetMembers();
133
134      //print out the attributes for member if have
135      Console.WriteLine("\nprinting member attributes");
136      foreach(MemberInfo info in methodInfo)
137      {
138        attributes = info.GetCustomAttributes(false);
139        foreach(object attribute in attributes)
140          PrintAttributes((BugFixAttribute)attribute);
141      }
142    }*/
143  }
144
145}