XMLMessage
using System;
using System.Collections.Generic;
using System.Text;
namespace Pattern.Flyweight
{
/**//// <summary>
/// XML方式操作Message(ConcreteFlyweight)
/// </summary>
public class XMLMessage : AbstractMessage
{
/**//// <summary>
/// 獲取Message
/// </summary>
/// <returns></returns>
public override List<MessageModel> Get()
{
List<MessageModel> l = new List<MessageModel>();
l.Add(new MessageModel("XML方式獲取Message", DateTime.Now));
return l;
}
/**//// <summary>
/// 插入Message
/// </summary>
/// <param name="mm">Message實體對象</param>
/// <returns></returns>
public override bool Insert(MessageModel mm)
{
// 代碼略
return true;
}
}
}
MessageFactory
using System;
using System.Collections.Generic;
using System.Text;
namespace Pattern.Flyweight
{
/**//// <summary>
/// Message工廠(FlyweightFactory)
/// </summary>
public class MessageFactory
{
private Dictionary<string, AbstractMessage> _messageObjects = new Dictionary<string, AbstractMessage>();
/**//// <summary>
/// 獲取Message對象
/// </summary>
/// <param name="key">key</param>
/// <returns></returns>
public AbstractMessage GetMessageObject(string key)
{
AbstractMessage messageObject = null;
if (_messageObjects.ContainsKey(key))
{
messageObject = _messageObjects[key];
}
else
{
switch (key)
{
case "XML": messageObject = new SqlMessage(); break;
case "sql": messageObject = new XMLMessage(); break;
}
_messageObjects.Add(key, messageObject);
}
return messageObject;
}
}
}