using System;
using System.Configuration;
using System.Reflection;	// 需要使用 .NET 反射

using TraceLWord7.DbTask;

namespace TraceLWord7.DALFactory
{
	/// <summary>
	/// DbTaskDriver 數(shù)據(jù)庫(kù)訪問層工廠
	/// </summary>
	public class DbTaskDriver
	{
		#region 類 DbTaskDriver 構(gòu)造器
		/// <summary>
		/// 類 DbTaskDriver 默認(rèn)構(gòu)造器
		/// </summary>
		public DbTaskDriver()
		{
		}
		#endregion

		/// <summary>
		/// 驅(qū)動(dòng)數(shù)據(jù)庫(kù)任務(wù)對(duì)象實(shí)例
		/// </summary>
		public ILWordTask DriveLWordTask()
		{
			// 獲取程序集名稱
			string assemblyName=ConfigurationSettings.AppSettings["AssemblyName"];
			// 獲取默認(rèn)構(gòu)造器名稱
			string constructor=ConfigurationSettings.AppSettings["Constructor"];

			// 建立 ILWordTask 對(duì)象實(shí)例
			return (ILWordTask)Assembly.Load(assemblyName).CreateInstance(constructor, false);
		}
	}
}