static void Main(string[] args)
{
var employees = new Employees();
var director = new Director {
Name = "Steve", Income = 100000, VacationDays = 100
} as Employee;
var president = new President {
Name = "Bob", Income = 1000000, VacationDays = 10
} as Employee;
var clerk = new Clerk {
Name = "Mary", Income = 10000, VacationDays = 1
} as Employee;
employees.EmployeesList.AddRange(new [] { director, president, clerk });
var incomeVisitor = new IncomeVisitor();
var vacationDaysVisitor = new VacationVisitor();
employees.Accept(incomeVisitor);
employees.Accept(vacationDaysVisitor);
}
private static void EmployeesDemo()
{
var ivan = new Clerk { Name = "Ivan", Income = 20000, VacationDays = 8 };
var peter = new Clerk { Name = "Peter", Income = 25000, VacationDays = 14 };
var george = new Director { Name = "George", Income = 35000, VacationDays = 16 };
var bob = new President { Name = "Bob", Income = 45000, VacationDays = 21 };
// Setup employee collection
var employees = new EmployeesList();
employees.Attach(ivan);
employees.Attach(peter);
employees.Attach(george);
employees.Attach(bob);
// Employees are 'visited'
employees.Accept(new IncomeVisitor());
employees.Accept(new VacationVisitor());
bob.Accept(new IncomeVisitor());
// We can create and apply new visitors (e.g. work from home days)
// as well as new employee successors
// We can create SumIncomeVisitor to collect information for us
}
