nHibernate Criteria API投影

Question

我有一個像這樣的實體

public class Customer 
{
    public Customer() { Addresses = new List<Address>(); }
    public int CustomerId { get; set; }
    public string Name { get; set; }
    public IList<Address> Addresses { get; set; }
}

我正在嘗試使用Criteria API這樣查詢它。

ICriteria query = m_CustomerRepository.Query()
    .CreateAlias("Address", "a", NHibernate.SqlCommand.JoinType.LeftOuterJoin);
var result = query
  .SetProjection(Projections.Distinct(
    Projections.ProjectionList()
      .Add(Projections.Alias(Projections.Property("CustomerId"), "CustomerId"))
      .Add(Projections.Alias(Projections.Property("Name"), "Name"))
      .Add(Projections.Alias(Projections.Property("Addresses"), "Addresses"))
    ))
  .SetResultTransformer(new AliasToBeanResultTransformer(typeof(Customer)))
  .List<Customer>() as List<Customer>;

當我運行此查詢時，Customer對象的Addresses屬性為null。 無論如何，有沒有為此List屬性添加投影？

Answer 1

該代碼似乎很好。 因此，問題可能出在Addresses屬性的映射中。