NHibernate:使用Fluent NHibernate处理中间表的最佳方法？

你如何在Fluent NHibernate中映射以下内容？

参见"18.3.客户/订单/产品"

http://www.hibernate.org/hib_docs/nhibernate/html/example-mappings.html

以下解决方案使用与示例中的解决方案相同的方法,并且生成的XML与此相同.为简洁起见,我省略了指定列名称等内容.

域:

public class Customer
{
    private ISet orders = new HashedSet();

    public long Id { get; set; }
    public string Name { get; set; }
    public ISet Orders
    {
        get { return orders; }
        private set { orders = value; }
    }
}

public class Order
{
    public long Id { get; set; }
    public DateTime Date { get; set; }
    public Customer Customer { get; set; }
    public IList LineItems { get; private set; }
}

public class LineItem
{
    public int Quantity { get; set; }
    public Product Product { get; set; }
}

public class Product
{
    public long Id { get; set; }
    public string SerialNumber { get; set; }
}

制图:

public class CustomerMap : ClassMap
{
    public CustomerMap()
    {
        Id(x => x.Id)
            .GeneratedBy.Native();

        Map(x => x.Name);

        HasMany(x => x.Orders)
            .IsInverse()
            .AsSet();
    }
}

public class OrderMap : ClassMap
{
    public OrderMap()
    {
        Id(x => x.Id)
            .GeneratedBy.Native();

        Map(x => x.Date);

        References(x => x.Customer);
        HasMany(x => x.LineItems)
            .Component(c =>
                {
                    c.Map(x => x.Quantity);
                    c.References(x => x.Product);
                }).AsList();
    }
}

public class ProductMap : ClassMap
{
    public ProductMap()
    {
        Id(x => x.Id)
            .GeneratedBy.Native();

        Map(x => x.SerialNumber);
    }
}

要查看生成的XML映射,可以使用以下代码:

        Configuration config = new Configuration().Configure();
        PersistenceModel model = new PersistenceModel();

        model.addMappingsFromAssembly(typeof(CustomerMap).Assembly);
        model.Configure(config);

        model.WriteMappingsTo("your folder name here"); 

我希望它有所帮助.

/埃里克