private void Demo_Loaded(object sender, RoutedEventArgs e)
{
string[] ary = new string[] { "xml", "sql" };
MessageFactory messageFactory = new MessageFactory();
foreach (string key in ary)
{
AbstractMessage messageObject = messageFactory.GetMessageObject(key);
lblMsg.AppendLine(messageObject.Insert(new MessageModel("插入", DateTime.Now)).ToString());
lblMsg.AppendLine(messageObject.Get()[0].Message + " " + messageObject.Get()[0].PublishTime.ToString());
}
}
/// <summary>
/// 获取Message对象
/// </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);
}