NHibernate流畅地为Session/SessionFactory配置默认刷新模式

问题描述

我正在使用FluentNHibernate并尝试将Environment.DefaultFlushMode配置为FlushMode.Commit

I am using FluentNHibernate and trying to configure Environment.DefaultFlushMode to FlushMode.Commit

根据这个SO问题，应该是可能的:如何将默认FlushMode更改为在C#中提交?

According to this SO question it should be possible:How to change default FlushMode to Commit in C#?

实际上，已添加此功能 https://nhibernate.jira.com/browse/NH -3619

Indeed, this feature was added https://nhibernate.jira.com/browse/NH-3619

这是我的用法:

    public ISessionFactory BootstrapSessionFactory()
    {
        return Fluently.Configure()
            .ExposeConfiguration(cfg =>
                cfg.SetProperty(Environment.DefaultFlushMode, FlushMode.Commit.ToString()))
            .BuildSessionFactory();
    }

根据FluentConfiguration的源代码

According to source code of FluentConfiguration

    public FluentConfiguration ExposeConfiguration(Action<Configuration> config)
    {
        if (config != null)
        {
            this.configAlterations.Add(config);
        }
        return this;
    }

    public Configuration BuildConfiguration()
    {
        try
        {
            MappingConfiguration mappingConfiguration = new MappingConfiguration(this.logger);
            foreach (Action<MappingConfiguration> mappingsBuilder in this.mappingsBuilders)
            {
                mappingsBuilder(mappingConfiguration);
            }
            mappingConfiguration.Apply(this.Configuration);
            if (this.cache.IsDirty)
            {
                this.Configuration.AddProperties(this.cache.Create());
            }
            foreach (Action<Configuration> configAlteration in this.configAlterations)
            {
                configAlteration(this.Configuration);
            }

我可以看到我的配置更改在调试时被应用

I can see that my config alterations are being applied when I debug

但是，当我实际检查session.FlushMode是否使用此sessionFactory建立的会话时，我得到了我未设置的其他FlushMode.

However, when I actually check session.FlushMode for a session built using this sessionFactory I'm getting some other FlushMode that I did not set.

我想念什么?我在做什么错了?

非常感谢！

PS:使用的库版本为:

PS: versions of libraries used are:

<PackageReference Include="FluentNHibernate" Version="2.1.2" />
<PackageReference Include="NHibernate" Version="5.1.3" />

更新:深入研究，我可以看到上面的代码确实正确设置了SessionFactory.DefaultFlushMode，但是，此刷新模式是未应用于会话

Update:Digging a bit deeper, I can see that the code above indeed sets the SessionFactory.DefaultFlushMode correctly, however, this flush mode is not being applied to session

这就是我得到ISession和ISessionFactory

    public static void Install(IServiceCollection serviceCollection)
    {
        serviceCollection.AddSingleton<PersistenceSetup>();
        // ISessionFactory
        serviceCollection.AddSingleton(provider => provider.GetService<PersistenceSetup>().BootstrapSessionFactory());
        // ISession
        serviceCollection.AddTransient(provider => provider.GetService<ISessionFactory>().OpenSession());

而且，结果，当我调试时，刷新模式是不同的:

And, as a result Flush modes are different when I debug:

推荐答案

我不明白为什么您的代码无法正常工作.只要成功建立了会话工厂并从中创建会话，它就可以正常工作.

I could not understand why your code does not work. As long as your session factory is built successfully and you are creating session from same, it should work.

虽然我正在使用NHibernate 4.1.0.4000;您正在使用较高版本.我不认为这是由于NHibernate版本造成的.我怀疑这是由于Fluent和NHibernate之间的兼容性问题造成的.

I am using NHibernate 4.1.0.4000 though; you are using upper version. I do not think this is due to version of NHibernate. I doubt this is due to compatibility issue between Fluent and NHibernate.

这与您的问题没有直接关系，但是我使用的是NHibernate Configuration by Code而不是Fulent.

This is not directly relevant to your problem but I am using NHibernate Configuration by Code instead of Fulent.

Configuration configuration = new Configuration();
configuration.SessionFactory().DefaultFlushMode(FlushMode.Commit);
sessionFactory = configuration.BuildSessionFactory();

这会将默认冲洗模式设置为我选择的冲洗模式.当我使用如下所示的会话工厂创建会话时-

This sets default flush mode to the one I choose. When I create session using this session factory like below -

ISession session = sessionFactory.OpenSession();

此会话保持正确的刷新模式(在这种情况下为提交").

this session hold correct ("Commit" in this case) flush mode.

更好的解决方案是通过代码切换到NHibernate自己的配置.这将绕过所有兼容性问题.如果您决定切换以下名称空间:

Better solution is to switch to NHibernate's own configuration by code; this will bypass all compatibility issues. Following are the namespaces if you decide to switch:

using NHibernate.Cfg;
using NHibernate.Cfg.MappingSchema;

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