nhibernate实体多重映射

发布于 2024-10-19 21:10:56 字数 1051 浏览 0 评论 0原文

我有实体流畅地映射到现有的 oracle 视图：

public class MyEntityMap : ClassMap<MyEntity>
{
    public class MyEntityMap()
    {
        ReadOnly();
        SchemaAction.None();
        //mappings
    }
}

我正在查询 oracle 视图中的实体，并根据某些条件过滤它们，比如说，created_date 超过 14 天。这些实体应写入数据库以供将来报告使用。为此，我创建了一个表，该表在字段方面是 Oracle 视图的精确克隆。我想将完全相同的 MyEntity 映射到我自己的表。像这样的事情：

public class MyHistoricalEntityMap : ClassMap<MyEntity>
{
    public class MyHistoricalEntityMap()
    {
        Table("HistoricalEntities");
        //mappings
    }
}

另外，我有一个负责查询视图的服务，但我想添加一个方法来存储我的历史实体，如下所示：

public class MyEntityService : IMyEntityService
{
    private IRepository<MyEntity> _repository;
    ...    
    public IEnumerable<MyEntity> GetEntities(){...}    
    public void StoreHistoricalEntities(IEnumerable<MyEntity> historicalEntities) {...}
}

所以，问题是：我如何指定，我想要（或nhibernate应该）使用 MyEntityMap 进行查询，但使用 MyHistoricalEntityMap 存储结果？或者我可以应用什么其他解决方案？

谢谢，

原文

I have entity fluently mapped to existing oracle view:

public class MyEntityMap : ClassMap<MyEntity>
{
    public class MyEntityMap()
    {
        ReadOnly();
        SchemaAction.None();
        //mappings
    }
}

I'm querying oracle view for entities and filtering them based on certain criteria, let's say, where created_date more than 14 days. Those entities should be written into the database for future reporting use. For that purpose I've created a table which is exact clone of oracle view in terms of fields. And I'd like to map exactly the same MyEntity to my own table. Something like that:

public class MyHistoricalEntityMap : ClassMap<MyEntity>
{
    public class MyHistoricalEntityMap()
    {
        Table("HistoricalEntities");
        //mappings
    }
}

Also, I have a service responsible for querying view, but I want to add a method to store my historical entities, smth like below:

public class MyEntityService : IMyEntityService
{
    private IRepository<MyEntity> _repository;
    ...    
    public IEnumerable<MyEntity> GetEntities(){...}    
    public void StoreHistoricalEntities(IEnumerable<MyEntity> historicalEntities) {...}
}

So, question is: how do I specify, that I want to (or nhibernate should) use MyEntityMap for querying, but MyHistoricalEntityMap for storing results? Or what other solution can I apply?

Thanks,

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