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using System;

//References to PetShop specific libraries
//PetShop busines entity library
using BookShop.Model;

//PetShop DAL interfaces
using BookShop.IDAL;

namespace BookShop.BLL {

	/// 

	/// A business Component used to manage accounts
	/// The BookShop.Model.Account is used in most methods 
	/// and is used to store serializable information about an account
	/// 

	public class Account {
		
		/// 

		/// Method to login into the system. The user must supply a username and password
		/// 

		/// Unique identifier for a user
		/// Password for a user
		/// If the login is successful it returns information abount the account
		public AccountInfo SignIn（string userId string password） {

			// Validate input
			if （（userId.Trim（） == string.Empty） || （password.Trim（） == string.Empty））
				return null;

			// Get an instance of the account DAL using the DALFactory
			IAccount dal = BookShop.DALFactory.Account.Create（）;

			// Try to sign in with the given credentials
			AccountInfo account = dal.SignIn（userId password）;

			// Return the account
			return account;
		}

		/// 

		/// Returns the address information for a specific user
		/// 

		/// Unique identifier for an account/customer
		/// Returns the address information for the user
		public AddressInfo GetAddress（string userId） {

			// Validate input
			if （userId.Trim（） == string.Empty）
				return null;
			
			// Get an instance of the account DAL using the DALFactory
			IAccount dal = BookShop.DALFactory.Account.Create（）;

			// Return the address information for the given userId from the DAL
			return dal.GetAddress（userId）; 
		}

		/// 

		/// A method to insert a new Account
		/// 

		/// An account entity with information about the new account
		public void Insert（AccountInfo account） {

			// Validate input
			if （account.UserId.Trim（） == string.Empty）
				return;

			// Get an instance of the account DAL using the DALFactory
			IAccount dal = BookShop.DALFactory.Account.Create（）;

			// Call the DAL to insert the account
			dal.Insert（account）;
		}

		/// 

		/// A method to update an existing account
		/// 

		/// An account entity with information about the account to be updated
		public void Update（AccountInfo account） {

			// Validate input
			if （account.UserId.Trim（） == string.Empty）
				return;

			// Get an instance of the account DAL using the DALFactory
			IAccount dal = BookShop.DALFactory.Account.Create（）;

			// Send the udpated account information to the DAL
			dal.Update（account）;
		}
	}
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件       2883  2004-11-09 15:30  SHOPCodeResourceBLLAccount.cs

     文件        288  2004-11-09 15:30  SHOPCodeResourceBLLAssemblyInfo.cs

     文件       5778  2004-11-09 15:15  SHOPCodeResourceBLLBLL.csproj

     文件       1805  2004-12-06 20:08  SHOPCodeResourceBLLBLL.csproj.user

     文件       3571  2004-11-09 15:30  SHOPCodeResourceBLLCart.cs

     文件       1331  2004-11-09 15:30  SHOPCodeResourceBLLInventory.cs

     文件       1532  2004-11-09 15:29  SHOPCodeResourceBLLItem.cs

    ..A..H.     22280  2004-12-06 20:08  SHOPCodeResourceBLLobjDebugBLL.projdata

    ..A..H.     30088  2004-12-06 20:08  SHOPCodeResourceBLLobjReleaseBLL.projdata

     文件      20480  2004-11-23 22:20  SHOPCodeResourceBLLobjReleaseBookShop.BLL.dll

     文件      20480  2004-11-09 15:10  SHOPCodeResourceBLLobjReleasePetShop.BLL.dll

     文件       2509  2004-11-09 15:29  SHOPCodeResourceBLLOrderInsert.cs

     文件       1043  2004-11-09 15:29  SHOPCodeResourceBLLOrderRead.cs

     文件       1625  2004-11-09 15:29  SHOPCodeResourceBLLProduct.cs

     文件        863  2004-11-09 15:29  SHOPCodeResourceBLLProfile.cs

     文件     999936  2004-11-09 20:58  SHOPCodeResourceBookShopdbBookShopOrders

     文件      19456  2004-11-09 20:48  SHOPCodeResourceBookShop.ncb

     文件       6405  2004-12-06 19:58  SHOPCodeResourceBookShop.sln

     文件        596  2002-11-17 18:55  SHOPCodeResourceBookShop.snk

    ..A..H.     14848  2004-12-06 20:08  SHOPCodeResourceBookShop.suo

     文件        340  2004-12-06 20:08  SHOPCodeResourceBookShop_Model.tgs

     文件         36  2004-12-06 20:08  SHOPCodeResourceBookShop_Model.tgw

     文件        652  2004-11-09 15:30  SHOPCodeResourceDALFactoryAccount.cs

     文件        123  2004-11-09 15:29  SHOPCodeResourceDALFactoryAssemblyInfo.cs

     文件      16384  2004-11-23 22:20  SHOPCodeResourceDALFactoryinReleaseBookShop.DAL.dll

     文件      16384  2004-11-23 22:20  SHOPCodeResourceDALFactoryinReleaseBookShop.IDAL.dll

     文件      24576  2004-11-23 22:20  SHOPCodeResourceDALFactoryinReleaseBookShop.Model.dll

     文件      16384  2004-11-09 15:10  SHOPCodeResourceDALFactoryinReleasePetShop.DAL.dll

     文件      16384  2004-11-09 15:10  SHOPCodeResourceDALFactoryinReleasePetShop.IDAL.dll

     文件       5258  2004-11-09 15:15  SHOPCodeResourceDALFactoryDALFactory.csproj

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