如何使用接口映射复合id与流利的nhibernate？ [英] How to map composite-id with fluent nhibernate using an interface?

问题描述

我试图将 .hbm 映射为流畅的映射，并且在复合标识的映射和接口的使用方面存在问题。 b
$ b

类看起来如下：

pre $ public class ClassWithCompositeId {
public virtual IKeyOne KeyOne {get;组; }
public virtual IKeyTwo KeyTwo {get;组; }
}


我们的hbm映射如下所示：

 < hibernate-mapping ...> 
< class name =ClassWithCompositeIdtable =t_classwithcompositeid> 
< composite-id> 
  < / composite-id> 
< / hibernate-mapping> 
  

请注意，我们在Class中获得了接口！不，我试图映射这与流利nhibernate。

 地图{
 public ClassWithCompositeIdMap（）{$ b $ （x => x.KeyOne，colkeyone）
 .KeyReference（x => x.KeyTwo，colkeytwo）; 
 ... 
} 
} 
  

映射如下：

  ... 
  < column name =colkeyone/> 
< / key-many-to-one> 
 < column name =colkeytwo/> 
< / key-many-to-one> 
< / composite-id> 
 ... 
  

Class属性现在指向Interface而不是实现

如何告诉Fluent nHibernate使用另一个类作为属性值？

解决方案

坦克！但是我已经找到了答案。事实上，我发现流利的nHibernate缺少一个功能。这个功能已经被Paul Batum添加到了开发分支中。

你可以像这样使用它：

 public ClassWithCompositeIdMap（）{
 CompositeId（）
 .KeyReference（x => x.KeyOne，k => $ b $ （），colkeytwo）（b）类型< KeyOneImplementation>（），colkeyone）
 .KeyReference（x => x.KeyTwo，k => 
 k.Type< KeyTwoImplementation> ; 
 ... 
} 
} 
  

http://github.com/paulbatum/fluent-nhibernate/tree/dev

你可以在这里看到原来的对话： http：//support.fluentnhibernate。组织/讨论/求助/ 349-如何到MAP-A-复合-ID-时，使用接口或 - 如何对变化的类属性，在最关键的许多-TO-一个标签

I'm trying to switch out .hbm mappings to fluent mappings and have a problem with the mapping of composite-ids and the usage of Interfaces

the Class looks as follows:

public class ClassWithCompositeId {
  public virtual IKeyOne KeyOne { get; set; }
  public virtual IKeyTwo KeyTwo { get; set; }
}

our hbm mapping looks like this:

<hibernate-mapping ...>
   <class name="ClassWithCompositeId" table="t_classwithcompositeid">
      <composite-id>      
         <key-many-to-one name="KeyOne" column="colkeyone" class="company.namespace.boSkillBase, BL_Stammdaten" />
         <key-many-to-one name="KeyTwo" column="colkeytwo" class="boQualifikation" />         
      </composite-id>
</hibernate-mapping>

Please note, that we got interfaces in the Class! No I'm trying to map this with Fluent nhibernate.

Map {
   public ClassWithCompositeIdMap() {
         CompositeId()
            .KeyReference(x => x.KeyOne, "colkeyone")
            .KeyReference(x => x.KeyTwo, "colkeytwo");
          ...
   }
}

But now Fluent generates the Mapping as follows:

...
 <composite-id mapped="false" unsaved-value="undefined">
      <key-many-to-one name="KeyOne" class="company.namespace.IKeyOne, Interfaces, Version=0.1.4.3379, Culture=neutral, PublicKeyToken=null">
        <column name="colkeyone" />
      </key-many-to-one>
      <key-many-to-one name="KeyTwo" class="company.namespace.IKeyTwo, Interfaces, Version=0.1.4.3379, Culture=neutral, PublicKeyToken=null">
        <column name="colkeytwo" />
      </key-many-to-one>
    </composite-id>
...

The "Class" Attribute points now to the Interface not to the implementation of this interface which results in an error.

How can I tell Fluent nHibernate to use another class as the attribute value?

解决方案

Tanks! But I've found the answer on my on. In fact i found a missing feature in fluent nHibernate. The feature has already been added to the dev branch by Paul Batum.

You would use it like so:

   Map {
      public ClassWithCompositeIdMap() {
            CompositeId()
               .KeyReference(x => x.KeyOne, k =>
                   k.Type<KeyOneImplementation>(), "colkeyone")
               .KeyReference(x => x.KeyTwo, k =>
                   k.Type<KeyTwoImplementation>(), "colkeytwo");
             ...
      }
   }

http://github.com/paulbatum/fluent-nhibernate/tree/dev

You can see the original Conversation here: http://support.fluentnhibernate.org/discussions/help/349-how-to-map-a-composite-id-when-using-interfaces-or-how-to-change-the-class-attribute-in-the-key-many-to-one-tag

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