NHibernate:使用IList语义双向映射一对多

Question

这是相关的部分。这是一个父对象:

public class Article
{
    public virtual IList<ArticleRevision> Revisions { get; set; }
}

<list name="Revisions" cascade="all" inverse="true" table="ArticleRevision">
  <cache usage="read-write" />

  <key column="ArticleID" not-null="true" />
  <index column="Number" type="int32" />
  <one-to-many class="ArticleRevision" />
</list>

这是一个 child :

public class ArticleRevision
{
    public virtual Article Article { get; set; }
}

<many-to-one name="Article" column="ArticleID" not-null="true" />

现在，我创建一个 Article实例，向 ArticleRevision集合中添加一个 Article.Revisions，设置 ArticleRevision.Article以引用 Article实例并将其推到数据库中:

INSERT 
INTO
    ArticleRevision
    (Content, Keywords, CreatedAt, SiteID, ArticleID, CreatedByUserID, ID) 
VALUES
    (@p0, @p1, @p2, @p3, @p4, @p5, @p6);

没有 Number列被插入。

如何在NHibernate中正确映射具有列表语义的双向一对多集合？

Answer 1

从NHibernate documentation:

Please note that NHibernate does not support bidirectional one-to-many associations with an indexed collection (list, map or array) as the "many" end, you have to use a set or bag mapping.