在NHibernate中執行自定義查詢，並映射到一個自定義的域對象

嗨，我有這樣的在NHibernate中執行自定義查詢，並映射到一個自定義的域對象

SELECT Customer.Name, sum([Load].Profit) as Profit FROM Customer INNER JOIN [Load] ON Customer.Id = [Load].CustomerId GROUP BY Customer.Name

我需要在NHibernate中執行此查詢，並將其映射到我爲創建一個自定義域對象的查詢像這樣

public class CustomerProfit 
    { 
     public String Name; 
     public Decimal Profit; 

    }

是否可以這樣做？以及在HQL中如何或者有可能執行這個自定義查詢？

來源

2012-03-07 Sudantha

你喜歡什麼：a）在使用ResultTransformer但沒有changetracking B）的映射與自定義SQL和更多的工作，但變化的跟蹤和東西 – Firo 2012-03-07 15:18:49

由於實體需求最少的工作，我想我更喜歡:-) – Sudantha 2012-03-07 15:58:13

見這個答案 http://stackoverflow.com/questions/5964147/map-sql-query-to-business-object-in-nhibernate 也許對你有幫助;） – Gholamreza 2013-12-04 04:26:32

public sealed class CustomerProfitQuery : IResultTransformer 
{ 
    public static readonly string Sql = "SELECT Customer.Name, sum([Load].Profit) as Profit FROM Customer INNER JOIN [Load] ON Customer.Id = [Load].CustomerId GROUP BY Customer.Name"; 
    public static readonly CustomerProfitQuery Transformer = new CustomerProfitQuery(); 

    // make it singleton 
    private CustomerProfitQuery() 
    { } 

    public IList TransformList(IList collection) 
    { 
     return collection; 
    } 

    public object TransformTuple(object[] tuple, string[] aliases) 
    { 
     return new CustomerProfit 
     { 
      Name = (string)tuple[0], 
      Profit = (decimal)tuple[1], 
     }; 
    } 
} 


// usage 
var customerprofits = session.CreateSQLQuery(CustomerProfitQuery.Sql) 
    .SetResultTransformer(CustomerProfitQuery.Transformer) 
    .List<CustomerProfit>()

來源

2012-03-08 10:47:29 Firo

Gr8 ...完全爲我工作.. gr8解決方案.. – 2013-05-08 09:13:26

在NHibernate中執行自定義查詢，並映射到一個自定義的域對象

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