fork download
copy 
  1.     using System;
  2.     using System.Collections.Generic;
  3.     using System.Linq;
  4.     using System.Text;
  5.     using System.Threading.Tasks;
  6.     using System.Collections;
  7.  
  8.  
  9.     namespace PrjObjectPooling
  10.     {
  11.        class Program
  12.        {
  13.           static void Main(string[] args)
  14.           {
  15.              Factory fa = new Factory();
  16.              Student myStu = fa.GetStudent();
  17.              Console.WriteLine("First object");
  18.              Student myStu1 = fa.GetStudent();
  19.              Console.WriteLine("Second object");
  20.              Student myStu2 = fa.GetStudent();
  21.              Console.WriteLine("Third object");
  22.              Student myStu3 = fa.GetStudent();
  23.              Console.WriteLine("Fourth object");
  24.              Console.Read();
  25.           }
  26.        }
  27.  
  28.  
  29.        class Factory
  30.        {
  31.           // Maximum objects allowed!
  32.           private static int _PoolMaxSize = 4;
  33.           // My Collection Pool
  34.           private static readonly Queue objPool = new Queue(_PoolMaxSize);
  35.  
  36.           public Student GetStudent()
  37.           {
  38.              Student oStudent;
  39.              // Check from the collection pool. If exists, return object; else, create new
  40.              if (Student.ObjectCounter >= _PoolMaxSize && objPool.Count > 0)
  41.              {
  42.                 // Retrieve from pool
  43.                 oStudent = RetrieveFromPool();
  44.              }
  45.              else
  46.              {
  47.                 oStudent = GetNewStudent();
  48.              }
  49.              return oStudent;
  50.           }
  51.  
  52.           private Student GetNewStudent()
  53.           {
  54.              // Creates a new Student
  55.              Student oStu = new Student();
  56.              objPool.Enqueue(oStu);
  57.              return oStu;
  58.           }
  59.  
  60.           protected Student RetrieveFromPool()
  61.           {
  62.              Student oStu;
  63.              // Check if there are any objects in my collection
  64.              if (objPool.Count > 0)
  65.              {
  66.                 oStu = (Student)objPool.Dequeue();
  67.                 Student.ObjectCounter--;
  68.              }
  69.              else
  70.              {
  71.                 // Return a new object
  72.                 oStu = new Student();
  73.              }
  74.              return oStu;
  75.           }
  76.        }
  77.  
  78.        class Student
  79.        {
  80.           public static int ObjectCounter = 0;
  81.           public Student()
  82.           {
  83.              ++ObjectCounter;
  84.           }
  85.  
  86.           private string _Firstname;
  87.           private string _Lastname;
  88.           private int _RollNumber;
  89.           private string _Class;
  90.  
  91.           public string Firstname
  92.           {
  93.              get
  94.              {
  95.                 return _Firstname;
  96.              }
  97.              set
  98.              {
  99.                 _Firstname = value;
  100.              }
  101.           }
  102.  
  103.           public string Lastname
  104.           {
  105.              get
  106.              {
  107.                 return _Lastname;
  108.              }
  109.              set
  110.              {
  111.                 _Lastname = value;
  112.              }
  113.           }
  114.  
  115.           public string Class
  116.           {
  117.              get
  118.              {
  119.                 return _Class;
  120.              }
  121.              set
  122.              {
  123.                 _Class = value;
  124.              }
  125.           }
  126.  
  127.           public int RollNumber
  128.           {
  129.              get
  130.              {
  131.                 return _RollNumber;
  132.              }
  133.              set
  134.              {
  135.                 _RollNumber = value;
  136.              }
  137.           }
  138.        }
  139.     }
Success #stdin #stdout 0.02s 15948KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
First object
Second object
Third object
Fourth object
https://ideone.com/WNCkAy
language:
C# (gmcs 5.20.1)
created:
4 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!