使用 UseOverridesFromAssemblyOf 进行自动映射不会调用基类的重写类

发布于 2024-10-05 18:47:06 字数 1033 浏览 2 评论 0原文

我正在使用流畅的 nHibernate 自动映射，非常简单，就像这样：

Fluently.Configure()
            .Database(MsSqlConfiguration.MsSql2008
            .ConnectionString(c => c
                .Server("(local)\\sql2008")
                .Database("nHibernate_test")
                .TrustedConnection()))
            .Mappings(m => m.AutoMappings.Add(
                AutoMap.AssemblyOf<Domain.Airport>(cfg)
                .UseOverridesFromAssemblyOf<ReaderMappingOverride>()
                ))

我的重写类是这样的：

public class ReaderMappingOverride : IAutoMappingOverride<Domain.Reader>
{
    public void Override(AutoMapping<Domain.Reader> mapping)
    {
        //use the reader ID as identifier of the class, instead of the ID field defined in superclass Entity
        mapping.IgnoreProperty(r => r.Id);
        mapping.Id(r => r.ReaderNumber);
    }
}

其中 Reader 是一个抽象基类。如果我为每个子类使用单独的重写类，它就可以正常工作。有什么方法可以定义抽象类的所有子类的重写吗？

谢谢，
强尼

原文

i'm using automapping with fluent nHibernate, very simply, like so:

Fluently.Configure()
            .Database(MsSqlConfiguration.MsSql2008
            .ConnectionString(c => c
                .Server("(local)\\sql2008")
                .Database("nHibernate_test")
                .TrustedConnection()))
            .Mappings(m => m.AutoMappings.Add(
                AutoMap.AssemblyOf<Domain.Airport>(cfg)
                .UseOverridesFromAssemblyOf<ReaderMappingOverride>()
                ))

my overriding classes are something like that:

public class ReaderMappingOverride : IAutoMappingOverride<Domain.Reader>
{
    public void Override(AutoMapping<Domain.Reader> mapping)
    {
        //use the reader ID as identifier of the class, instead of the ID field defined in superclass Entity
        mapping.IgnoreProperty(r => r.Id);
        mapping.Id(r => r.ReaderNumber);
    }
}

where Reader is an abstract base-class.
if I use a seperate overriding classes for each sub-class it works OK.
Is there any way to define the overriding for all subclasses of the abstract class?

thanks,
Jhonny

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

只有一腔孤勇 2024-10-12 18:47:06

好吧，刚刚回答了我自己的问题-
我的问题是我试图将从 Reader 类开始的层次结构映射到一个表中。但自动映射会自动忽略所有抽象类。我所做的只是将其添加到配置部分：

.Mappings(m => m.AutoMappings.Add(
                AutoMap.AssemblyOf<Domain.Airport>(cfg)
                .IncludeBase<Domain.Reader>()

并将其添加到我的配置类中

public override bool IsDiscriminated(Type type)
    {
       //this line indicates that the readers heirarchy should be all in one table, instead of seperate tables for every type of reader
        bool ret = type.IsSubclassOf(typeof(Domain.Reader)) || type == typeof(Domain.Reader) ;
        return ret;
    }

（顺便说一句，Fluent nHibernate 站点中给出的示例使用了 .net 3.5 中不存在的方法“type.In（...”）。 .)
效果很好。
希望这有帮助...

ok, just answered my own question-
my problem was that i was trying to map a heirarchy which started with the Reader class, into a single table. but auto-mapping automatically ignores all abstract classes. what i did was just add this to the configuration section:

.Mappings(m => m.AutoMappings.Add(
                AutoMap.AssemblyOf<Domain.Airport>(cfg)
                .IncludeBase<Domain.Reader>()

and this to my configuration class

public override bool IsDiscriminated(Type type)
    {
       //this line indicates that the readers heirarchy should be all in one table, instead of seperate tables for every type of reader
        bool ret = type.IsSubclassOf(typeof(Domain.Reader)) || type == typeof(Domain.Reader) ;
        return ret;
    }

(BTW, the example given in Fluent nHibernate's site uses the method "type.In(..." which does not exist in .net 3.5...)
that worked fine.
hopes this helps...

回复收藏 0 原文

~没有更多了~