Object Composition Over Inheritance

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Input;
using WPFSuppliments.CommandArchitecture;
using System.Windows;

namespace RightComposition.ClassesAndInterfaces
{
    public class AveragePrinter:IPrinterCommand
    {
        ICommand printCommand;
        ICommand faxCommand;
        ICommand scanCommand;
        ICommand emailCommand;

        #region IPrinterCommand Members

        public System.Windows.Input.ICommand PrintCommand
        {
            get
            {
                return printCommand;
            }
            set
            {
                printCommand = value;
            }
        }

        public System.Windows.Input.ICommand FaxCommand
        {
            get
            {
                return faxCommand;
            }
            set
            {
                faxCommand = value;
            }
        }

        public System.Windows.Input.ICommand ScanCommand
        {
            get
            {
                return scanCommand;
            }
            set
            {
                scanCommand = value;
            }
        }

        public System.Windows.Input.ICommand EmailCommand
        {
            get
            {
                return emailCommand;
            }
            set
            {
                emailCommand = value;
            }
        }

        #endregion

        public void Initialize()
        {
            PrintCommand = new DelegateCommand(ExecutePrintCommand);
            FaxCommand = new DelegateCommand(ExecuteFaxCommand);
            ScanCommand = new DelegateCommand(ExecuteScanCommand);
            EmailCommand = new DelegateCommand(ExecuteEmailCommand);
        }


        private void ExecutePrintCommand(object parameter)
        {
            MessageBox.Show("Executing average printer print command.");
        }
        private void ExecuteFaxCommand(object parameter)
        {
            MessageBox.Show("Average printer does not support fax command.");
        }
        private void ExecuteScanCommand(object parameter)
        {
            MessageBox.Show("Executing average printer scan command.");
        }
        private void ExecuteEmailCommand(object parameter)
        {
            MessageBox.Show("Average printer does not support email command.");
        }
    }
}