Invest in people before investing in tools

   1: using System;

   2:  

   3: namespace SpringSeries.Core.ExpressionLanguage

   4: {

   5:     public class Student

   6:     {

   7:         private string _lastName;

   8:         private string _firstName;

   9:         private DateTime _dateOdBirth = DateTime.MinValue;

  10:  

  11:         public string LastName

  12:         {

  13:             get { return _lastName; }

  14:             set { _lastName = value; }

  15:         }

  16:  

  17:         public DateTime DateOdBirth

  18:         {

  19:             get { return _dateOdBirth; }

  20:             set { _dateOdBirth = value; }

  21:         }

  22:  

  23:         public string FirstName

  24:         {

  25:             get { return _firstName; }

  26:             set { _firstName = value; }

  27:         }

  28:  

  29:         public int Age

  30:         {

  31:             get 

  32:             {

  33:                 return (DateTime.Now.Year - _dateOdBirth.Year); 

  34:             }

  35:         }

  36:  

  37:         public Student(string firstName, string lastName, DateTime dateOdBirth)

  38:         {

  39:             _firstName = firstName;

  40:             _lastName = lastName;

  41:             _dateOdBirth = dateOdBirth;

  42:         }

  43:  

  44:         public override string ToString()

  45:         {

  46:             return String.Format("Nome: {0} Cognome: {1} Età: {2}");

  47:         }

  48:     }

  49: }

   1: using System;

   2: using System.Collections;

   3:  

   4: namespace SpringSeries.Core.ExpressionLanguage

   5: {

   6:     public class Classroom

   7:     {

   8:         IList _students = new ArrayList();

   9:  

  10:         public IList Students

  11:         {

  12:             get { return _students; }

  13:         }

  14:     }

  15: }

   1: using System;

   2: using System.Collections;

   3: using Spring.Expressions;

   4:  

   5: namespace SpringSeries.Core.ExpressionLanguage

   6: {

   7:     class Program

   8:     {

   9:         static void Main(string[] args)

  10:         {

  11:             Classroom _class = new Classroom();

  12:             _class.Students.Add(new Student("Matteo", "Baglini", new DateTime(1982, 08, 11)));

  13:             _class.Students.Add(new Student("Mario", "Rossi", new DateTime(1967, 08, 11)));

  14:             _class.Students.Add(new Student("Luca", "Bianchi", new DateTime(1977, 02, 16)));

  15:  

  16:             string _exp = "Students.?{Age>25}.!{FirstName}";

  17:  

  18:             IList _selectedPupils = (IList)ExpressionEvaluator.GetValue(_class, _exp);

  19:  

  20:             foreach (string _item in _selectedPupils)

  21:             {

  22:                 Console.WriteLine("Nome {0} età", _item);

  23:             }

  24:  

  25:             Console.Read();

  26:         }

  27:     }

  28: }