NHibernate系列文章二十：NHibernate关系之一对一（附程序下载）

USE [NHibernateDemoDB]
GO

/****** Object:  Table [dbo].[ProductDetail]    Script Date: 07/22/2016 23:02:25 ******/
SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

CREATE TABLE [dbo].[ProductDetail](
    [Id] [int] IDENTITY(1,1) NOT NULL,
    [ProductId] [int] NOT NULL,
    [Description] [nvarchar](1000) NOT NULL,
 CONSTRAINT [PK_ProductDetail] PRIMARY KEY CLUSTERED 
(
    [ProductId] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]

GO

ALTER TABLE [dbo].[ProductDetail]  WITH CHECK ADD  CONSTRAINT [FK_ProductDetail_Product] FOREIGN KEY([ProductId])
REFERENCES [dbo].[Product] ([Id])
GO

ALTER TABLE [dbo].[ProductDetail] CHECK CONSTRAINT [FK_ProductDetail_Product]
GO

 1 namespace Demo.XML.Entities.Domain
 2 {
 3     public class ProductDetail
 4     {
 5         public virtual int Id { get; set; }
 6         public virtual string Description { get; set; }
 7         public virtual int ProductId { get; set; }
 8         public virtual Product Product { get; set; }
 9     }
10 }

 1 using System.Collections.Generic;
 2 
 3 namespace Demo.XML.Entities.Domain
 4 {
 5     public class Product
 6     {
 7         public Product()
 8         {
 9             Orders = new List<Order>();
10         }
11 
12         public virtual int Id { get; set; }
13 
14         public virtual string ProductCode { get; set; }
15 
16         public virtual string ProductName { get; set; }
17 
18         public virtual string Description { get; set; }
19 
20         public virtual IList<Order> Orders { get; set; }
21 
22         public virtual ProductDetail ProductDetail { get; set; }
23 
24         public virtual void SetDetailInfo(ProductDetail detail)
25         {
26             this.ProductDetail = detail;
27             detail.Product = this;
28         }
29     }
30 }

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="Demo.XML.Entities" namespace="Demo.XML.Entities.Domain">
  <class name="ProductDetail" table="ProductDetail">
    <id name="Id">
      <generator class="native" />
    </id>
    <property name="ProductId" not-null="true"/>
    <property name="Description" not-null="true"/>
    <one-to-one name="Product"/>
  </class>
</hibernate-mapping>

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="Demo.XML.Entities" namespace="Demo.XML.Entities.Domain">
  <class name="Product" table="Product">
    <id name="Id">
      <generator class="native" />
    </id>
    <property name="ProductCode" not-null="true"/>
    <property name="ProductName" not-null="true"/>
    <property name="Description"/>
    <bag name="Orders" table="ProductOrder" cascade="all">
      <key column="ProductId"/>
      <many-to-many class="Order" column="OrderId"/>
    </bag>
    <one-to-one name="ProductDetail" cascade="all" />
  </class>
</hibernate-mapping>

 1 using Demo.Service;
 2 using Demo.Service.Interface;
 3 using Demo.XML.Entities.Domain;
 4 using System;
 5 
 6 namespace Demo.ConsoleApp
 7 {
 8     class Program
 9     {
10         static readonly IProductService productService = new ProductService();
11 
12         static void Main(string[] args)
13         {
14             HibernatingRhinos.Profiler.Appender.NHibernate.NHibernateProfiler.Initialize();
15 
16             ProductDetail detail = new ProductDetail { Description = "This is a very good product" };
17             Product product = new Product { ProductCode = "3333", ProductName = "orange" };
18            
19             int productId = productService.Save(product);
20 
21             detail.ProductId = productId;
22             product.SetDetailInfo(detail);
23             productService.Update(product);
24 
25             productService.Delete(productId);
26 
27             Console.WriteLine("Completed");
28             Console.ReadLine();
29         }
30     }
31 }