NHibernate和结构图

所以我非常喜欢使用NHibernate,但总是使用Spring.Net.

我最近遇到了Jeremy Miller的StructureMap,并且比Spring.Net更喜欢它.在他的StructureMap网站上,他承诺一个关于如何一起使用NHibernate和StructureMap的例子.不幸的是,他没有时间去做(或者我找不到).

那么有没有人有关于如何使用StructureMap处理NHibernate会话的例子？

所以,我很抱歉我们没有使用之前完成的StructureMap示例获得NHibernate.最后,我想在StructureMap文档中发布它,但我首先需要一些反馈.你可以在我的博客上看到完整的例子:

http://trason.net/journal/2009/10/7/bootstrapping-nhibernate-with-structuremap.html

话虽这么说,我可以点击这里的亮点.有一个NHibernateRegistry提供四个功能:NHibernate.Configuration(作为Singleton),一个ISessionFactory(作为Singleton),一个ISession(作用域混合(HttpContext,如果可用,回退到Thread本地存储)),以及一个非常好的简单的IUnitOfWork.此外,还有一个HttpModule来管理每个Web请求的UnitOfWork.

这是NHibernateRegistry的代码:

using NHibernate;
using NHibernate.ByteCode.Castle;
using NHibernate.Cfg;
using NHibernate.Dialect;
using NHibernate.Driver;
using NHibernateBootstrap.Core.Domain;
using StructureMap.Attributes;
using StructureMap.Configuration.DSL;
using Environment=NHibernate.Cfg.Environment;

namespace NHibernateBootstrap.Core.Persistence
{
    public class NHibernateRegistry : Registry
    {
        public NHibernateRegistry()
        {
            var cfg = new Configuration()
                .SetProperty(Environment.ReleaseConnections, "on_close")
                .SetProperty(Environment.Dialect, typeof(SQLiteDialect).AssemblyQualifiedName)
                .SetProperty(Environment.ConnectionDriver, typeof(SQLite20Driver).AssemblyQualifiedName)
                .SetProperty(Environment.ConnectionString, "data source=bootstrap.sqlite;Version=3")
                .SetProperty(Environment.ProxyFactoryFactoryClass, typeof(ProxyFactoryFactory).AssemblyQualifiedName)
                .AddAssembly(typeof(Blog).Assembly);

            var sessionFactory = cfg.BuildSessionFactory();

            ForRequestedType().AsSingletons().TheDefault.IsThis(cfg);

            ForRequestedType().AsSingletons()
                .TheDefault.IsThis(sessionFactory);

            ForRequestedType().CacheBy(InstanceScope.Hybrid)
                .TheDefault.Is.ConstructedBy(ctx => ctx.GetInstance().OpenSession());

            ForRequestedType().CacheBy(InstanceScope.Hybrid)
                .TheDefaultIsConcreteType();

                ForRequestedType().TheDefaultIsConcreteType();
        }
    }
}

以下是工作单元的代码:

using System;
using NHibernate;

namespace NHibernateBootstrap.Core.Persistence
{
    public interface IUnitOfWork : IDisposable
    {
        ISession CurrentSession { get; }
        void Commit();  
    }
}

using NHibernate;

namespace NHibernateBootstrap.Core.Persistence
{
    public class UnitOfWork : IUnitOfWork
    {
        private readonly ISessionFactory _sessionFactory;
        private readonly ITransaction _transaction;

        public UnitOfWork(ISessionFactory sessionFactory)
        {
            _sessionFactory = sessionFactory;
            CurrentSession = _sessionFactory.OpenSession();
            _transaction = CurrentSession.BeginTransaction();
        }

        public ISession CurrentSession { get; private set;}

        public void Dispose()
        {
            CurrentSession.Close();
            CurrentSession = null;
        }

        public void Commit()
        {
            _transaction.Commit();
        }
    }
}

以下是适用于Web应用程序的NHibernateModule:

using System;
using System.Web;
using NHibernateBootstrap.Core.Persistence;
using StructureMap;

namespace NHibernateBootstrap.Web
{
    public class NHibernateModule : IHttpModule
    {
        private IUnitOfWork _unitOfWork;

        public void Init(HttpApplication context)
        {
            context.BeginRequest += ContextBeginRequest;
            context.EndRequest += ContextEndRequest;
        }

        private void ContextBeginRequest(object sender, EventArgs e)
        {
            _unitOfWork = ObjectFactory.GetInstance();

        }

        private void ContextEndRequest(object sender, EventArgs e)
        {
            Dispose();
        }

        public void Dispose()
        {
            _unitOfWork.Dispose();
        }
    }
}