我可以使用C#在运行时在Nhibernate中进行延迟加载吗 [英] can i do lazy loading in Nhibernate at runtime using c#

问题描述

我是Nhibernete工具的新手.

I am new in implement Nhibernete.

如果我在Nhibernete中使用XML文档(.hbm.xml文件)，则会在该xml中启用/禁用延迟加载.

If i use XML documents (.hbm.xml files) in Nhibernete, i enable/disable lazy loading in that xml.

在Nhibernete中有什么方法可以在运行时设置延迟加载吗?

Is there any way in Nhibernete where i can set lazy loading at run time?

推荐答案

我建议您不要在hbm文件中定义延迟加载/快速加载.

I would suggest you not to define lazy loading/eager loading in your hbm file.

您可以使用 QueryOver

延迟加载:

var order = Session.QueryOver<Domain.Order>()
    .Where(x => x.id == 12)
    .SingleOrDefault();

急于加载:

Domain.OrderLine orderLine = null;

var order = Session.QueryOver<Domain.Order>()
    .Where(x => x.id == 12)
    .Fetch(x => x.OrderLines).Eager
        .JoinAlias(x => x.OrderLines, () => orderLine, JoinType.LeftOuterJoin)
    .SingleOrDefault();

或

var order = Session.QueryOver<Domain.Order>()
    .Where(x => x.id == 12)
        .Inner.JoinAlias(x => x.OrderLines, () => orderLine)
        .SingleOrDefault();

我建议您阅读这篇有趣的文章.

I would suggest you to read this interesting article.

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