messageadapter.cs

c#精彩编程百例（源代码）

//  MessageAdapter.cs
//  Copyright (c) 2001 Mike Krueger
//
//  This program is free software; you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation; either version 2 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program; if not, write to the Free Software
//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

using System;
using System.Collections;

namespace SharpDevelop.Internal.Messages {
	
	/// <summary>
	/// Messages should overwrite this class instead of implementing ISdMessage, 
	/// but they're free to do.
	/// </summary>
	public class MessageAdapter : ISdMessage
	{
		protected object type         = null;
		protected bool   aborted      = false;
		protected bool   canbeaborted = false;
		
		public virtual object MessageType {
			get {
				return type;
			}
		}
		
		public virtual bool   IsAborted {
			get {
				return aborted;
			}
			set {
				if (!(aborted | canbeaborted)) {
					throw new ApplicationException("MessageAdapter : message can't be aborted");
				}
				aborted = value;
			}
		}
	}
	
}