FluentNHibernate：AsSet（）的作用是什么？ [英] FluentNHibernate: What is the effect of AsSet()?

问题描述

假设映射属性的类型是一个Iesi集合，那么是（b）
$ b

  HasMany（x => x.MySetProperty）
 .AsSet（）; 
  

和

  HasMany（x => x.MySetProperty）; 
  

解决方案

假设您的类型是一个Iesi集合，区别;它自己的 HasMany 调用足够聪明，知道你想要一个Set。 AsSet 是在FNH可能无法按类型确定的情况下将HasMany显式更改为Set的一种方式，例如，如果您要将集合公开为一个 IEnumerable 它会默认为一个Bag，调用 AsSet 会覆盖那个。

In Fluent Nhibernate what is the effect of specifying AsSet() on a HasMany or HasManyToMany relationship?

Assuming the type of the mapped property is an Iesi Set, is there any difference between:

HasMany(x => x.MySetProperty)
   .AsSet();

and

HasMany(x => x.MySetProperty);

解决方案

Assuming your type is an Iesi Set, then there's no difference; the HasMany call on it's own is smart enough to figure out that you want a Set. The AsSet is a way to explicitly change your HasMany to a Set in situations where FNH might not be able to determine it by type, for example if you're exposing your collection as an IEnumerable it would default to a Bag and calling AsSet would override that.

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