c# - 实体框架 - 不同于域模型的持久性模型

Question

我有以下旧代码。持久模型和（贫血的）域模型之间存在分离。这种分离和隐式转换有什么好处？你看到什么缺点了吗？

我知道使用隐式转换是可能的：SplitAmountEF saEF = dbContext.SplitAmount.Find(id); 拆分金额 sa = saEF; //隐式转换。它们可以互换使用。

如果领域模型和持久性模型几乎一样，那么只使用持久性模型（根本不使用域模型）会更好吗？

例子：

//Domain Model
public class Booking 
{
  public Guid ID {get; set;}
  ....

}

public class SplitAmount
{
  public Guid ID {get; set;}
  public  Decimal Amount {get; set;}
  ...

  public Guid IDBooking {get; set;}
}


//Persistence Model   
public class BookingEF 
{
  public Guid ID {get; set;}
  ...       
}

public class SplitAmountEF
{
  public Guid ID {get; set;}
  public  Decimal Amount {get; set;}
  ...

  public virtual BookingEF Parent {get; set;}

  //implicit converstion from SplitAmountEF to SplitAmount
  public static implicit SplitAmount(SplitAmountEF saEF) 
  {
     return new SplitAmount() 
     {
       ID = saEF.ID,
       Amount = saEF.Amount,
       ...
       IDBooking = saEF.Parent.ID,
     }
  }

 //implicit converstion from SplitAmount to SplitAmountEF
 public static implicit SplitAmountEF(SplitAmount sa) 
  {
     return new SplitAmountEF() 
     {
       ID = sa.ID,
       Amount = sa.Amount,
       ...

     }
  }
}