使用带有ninject和nhibernate的repo模式的多个数据库
我正在使用nhibernate和ninject的存储库/工作单元模式。我有一个通用存储库,工作单元提供会话工厂。到目前为止,它一直工作得很好,但现在我遇到了困难。我的项目现在要求我有第二个数据库。我不知道如何使我的回购/工作单元也适用于数据库。这是我的代码,来自: 存储库:使用带有ninject和nhibernate的repo模式的多个数据库,nhibernate,ninject,repository-pattern,unit-of-work,Nhibernate,Ninject,Repository Pattern,Unit Of Work,我正在使用nhibernate和ninject的存储库/工作单元模式。我有一个通用存储库,工作单元提供会话工厂。到目前为止,它一直工作得很好,但现在我遇到了困难。我的项目现在要求我有第二个数据库。我不知道如何使我的回购/工作单元也适用于数据库。这是我的代码,来自: 存储库: public interface IRepository<T> where T : class { IQueryable<T> GetAll(); T GetById(Guid id)
public interface IRepository<T> where T : class
{
IQueryable<T> GetAll();
T GetById(Guid id);
void Create(T entity);
void Update(T entity);
void Delete(Guid id);
}
public class Repository<T> : IRepository<T> where T : class
{
private UnitOfWork _unitOfWork;
public Repository(IUnitOfWork unitOfWork)
{
_unitOfWork = (UnitOfWork)unitOfWork;
}
protected ISession Session { get { return _unitOfWork.Session; } }
// CRUD operations...
}
公共接口i假设,其中T:class
{
IQueryable GetAll();
T GetById(Guid id);
无效创建(T实体);
无效更新(T实体);
作废删除(Guid id);
}
公共类存储库:IRepository,其中T:class
{
私人工作单位(Unitof Work);;
公共存储库(IUnitOfWork unitOfWork)
{
_unitOfWork=(unitOfWork)unitOfWork;
}
受保护的ISession会话{get{return\u unitOfWork.Session;}
//积垢操作。。。
}
工作单位:
public interface IUnitOfWork
{
void BeginTransaction();
void Commit();
}
public class UnitOfWork : IUnitOfWork
{
private static readonly ISessionFactory _sessionFactory;
private ITransaction _transaction;
public ISession Session { get; private set; }
static UnitOfWork()
{
// Initialise singleton instance of ISessionFactory, static constructors are only executed once during the
// application lifetime - the first time the UnitOfWork class is used
_sessionFactory = Fluently.Configure()
.Database(MsSqlConfiguration.MsSql2008.ConnectionString(c => c.FromConnectionStringWithKey("CONN")))
.Mappings(m => m.FluentMappings.AddFromAssembly(Assembly.Load("MyAssembly")))
.CurrentSessionContext<WebSessionContext>()
.BuildSessionFactory();
}
public UnitOfWork()
{
Session = _sessionFactory.OpenSession();
}
public void BeginTransaction()
{
_transaction = Session.BeginTransaction();
}
public void Commit()
{
try
{
_transaction.Commit();
}
catch
{
_transaction.Rollback();
throw;
}
finally
{
Session.Close();
}
}
}
public class UnitOfWork<TContext> : IUnitOfWork<TContext> where TContext : DatabaseContext
{
private ISessionFactory _sessionFactory;
private ITransaction _transaction;
public ISession Session { get; private set; }
public UnitOfWork(TContext context)
{
if (_sessionFactory == null)
{
_sessionFactory = context.GetSessionFactory();
}
Session = _sessionFactory.OpenSession();
}
public void BeginTransaction()
{
_transaction = Session.BeginTransaction();
}
public void Commit()
{
try
{
_transaction.Commit();
}
catch
{
_transaction.Rollback();
throw;
}
finally
{
Session.Close();
}
}
}
公共接口IUnitOfWork
{
void beginsaction();
无效提交();
}
公共类UnitOfWork:IUnitOfWork
{
私有静态只读ISessionFactory _sessionFactory;
私人ITransaction_交易;
公共ISession会话{get;private set;}
静态工作单元()
{
//初始化ISessionFactory的singleton实例,静态构造函数在初始化过程中只执行一次
//应用程序生存期-第一次使用UnitOfWork类
_sessionFactory=fluntly.Configure()
.Database(MsSqlConfiguration.MsSql2008.ConnectionString(c=>c.fromConnectionString WithKey(“CONN”))
.Mappings(m=>m.FluentMappings.AddFromAssembly(Assembly.Load(“MyAssembly”))
.CurrentSessionContext()
.BuildSessionFactory();
}
公共工作单元()
{
会话=_sessionFactory.OpenSession();
}
公共无效开始生效()
{
_事务=Session.BeginTransaction();
}
公共无效提交()
{
尝试
{
_Commit();
}
抓住
{
_transaction.Rollback();
投掷;
}
最后
{
Session.Close();
}
}
}
我唯一的想法是为每个数据库提供单独的存储库和工作单元类。这对我来说真的很难看,因为这将是大量的代码重复。有没有办法使repo/uow在数据库级别和实体类型上通用
我看到的另一个选择是NCommon可能能够为我处理这个问题。如果推荐的话,我愿意走这条路,但我还没有准备好马上就上床睡觉,因为这个项目已经两年多没有更新了。我花了一段时间,但我想到了以下几点,以防其他人需要: 修改回购协议:
public interface IRepository<TEntity, TContext> where TEntity : class where TContext : DatabaseContext
{
IQueryable<TEntity> GetAll();
TEntity GetById(Guid id);
void Create(TEntity entity);
void Update(TEntity entity);
void Delete(Guid id);
}
public class Repository<TEntity, TContext> : IRepository<TEntity, TContext> where TEntity : class where TContext : DatabaseContext
{
private UnitOfWork<TContext> _unitOfWork;
public Repository(IUnitOfWork<TContext> unitOfWork)
{
_unitOfWork = (UnitOfWork<TContext>)unitOfWork;
}
protected ISession Session { get { return _unitOfWork.Session; } }
public IQueryable<TEntity> GetAll()
{
return Session.Query<TEntity>();
}
public TEntity GetById(Guid id)
{
return Session.Get<TEntity>(id);
}
public void Create(TEntity entity)
{
Session.Save(entity);
}
public void Update(TEntity entity)
{
Session.Update(entity);
}
public void Delete(Guid id)
{
Session.Delete(Session.Load<TEntity>(id));
}
}
public interface i假设where tenty:class where TContext:DatabaseContext
{
IQueryable GetAll();
tenty GetById(Guid id);
无效创建(tenty实体);
无效更新(潜在实体);
作废删除(Guid id);
}
公共类存储库:IRepository where tenty:class where TContext:DatabaseContext
{
私人工作单位(Unitof Work);;
公共存储库(IUnitOfWork unitOfWork)
{
_unitOfWork=(unitOfWork)unitOfWork;
}
受保护的ISession会话{get{return\u unitOfWork.Session;}
公共IQueryable GetAll()
{
返回Session.Query();
}
公共权限GetById(Guid id)
{
返回会话.Get(id);
}
公共void创建(TEntity实体)
{
Session.Save(实体);
}
公共无效更新(TEntity实体)
{
更新(实体);
}
公共无效删除(Guid id)
{
Session.Delete(Session.Load(id));
}
}
修改后的工作单位:
public interface IUnitOfWork
{
void BeginTransaction();
void Commit();
}
public class UnitOfWork : IUnitOfWork
{
private static readonly ISessionFactory _sessionFactory;
private ITransaction _transaction;
public ISession Session { get; private set; }
static UnitOfWork()
{
// Initialise singleton instance of ISessionFactory, static constructors are only executed once during the
// application lifetime - the first time the UnitOfWork class is used
_sessionFactory = Fluently.Configure()
.Database(MsSqlConfiguration.MsSql2008.ConnectionString(c => c.FromConnectionStringWithKey("CONN")))
.Mappings(m => m.FluentMappings.AddFromAssembly(Assembly.Load("MyAssembly")))
.CurrentSessionContext<WebSessionContext>()
.BuildSessionFactory();
}
public UnitOfWork()
{
Session = _sessionFactory.OpenSession();
}
public void BeginTransaction()
{
_transaction = Session.BeginTransaction();
}
public void Commit()
{
try
{
_transaction.Commit();
}
catch
{
_transaction.Rollback();
throw;
}
finally
{
Session.Close();
}
}
}
public class UnitOfWork<TContext> : IUnitOfWork<TContext> where TContext : DatabaseContext
{
private ISessionFactory _sessionFactory;
private ITransaction _transaction;
public ISession Session { get; private set; }
public UnitOfWork(TContext context)
{
if (_sessionFactory == null)
{
_sessionFactory = context.GetSessionFactory();
}
Session = _sessionFactory.OpenSession();
}
public void BeginTransaction()
{
_transaction = Session.BeginTransaction();
}
public void Commit()
{
try
{
_transaction.Commit();
}
catch
{
_transaction.Rollback();
throw;
}
finally
{
Session.Close();
}
}
}
公共类UnitOfWork:IUnitOfWork其中TContext:DatabaseContext
{
私人ISessionFactory(sessionFactory);;
私人ITransaction_交易;
公共ISession会话{get;private set;}
公共工作单元(TContext上下文)
{
if(_sessionFactory==null)
{
_sessionFactory=context.GetSessionFactory();
}
会话=_sessionFactory.OpenSession();
}
公共无效开始生效()
{
_事务=Session.BeginTransaction();
}
公共无效提交()
{
尝试
{
_Commit();
}
抓住
{
_transaction.Rollback();
投掷;
}
最后
{
Session.Close();
}
}
}
数据库上下文:
public interface DatabaseContext
{
ISessionFactory GetSessionFactory();
}
public class QualityControlDatabaseContext : DatabaseContext
{
public ISessionFactory GetSessionFactory()
{
return Fluently.Configure()
.Database(MsSqlConfiguration.MsSql2008.ConnectionString(c => c.FromConnectionStringWithKey("QCConnection")))
.Mappings(m => m.FluentMappings.AddFromAssembly(Assembly.Load("QCEntities")))
.CurrentSessionContext<WebSessionContext>()
.BuildSessionFactory();
}
}
public class SAPDatabaseContext : DatabaseContext
{
public ISessionFactory GetSessionFactory()
{
return Fluently.Configure()
.Database(MsSqlConfiguration.MsSql2008.ConnectionString(c => c.FromConnectionStringWithKey("SAPConnection")))
.Mappings(m => m.FluentMappings.AddFromAssembly(Assembly.Load("SAPEntities")))
.CurrentSessionContext<WebSessionContext>()
.BuildSessionFactory();
}
}
公共接口数据库上下文
{
ISessionFactory GetSessionFactory();
}
公共类QualityControlDatabaseContext:DatabaseContext
{
公共ISessionFactory GetSessionFactory()
{
流畅地返回。Configure()
.Database(MsSqlConfiguration.MsSql2008.ConnectionString(c=>c.fromConnectionString WithKey(“QCConnection”))
.Mappings(m=>m.FluentMappings.AddFromAssembly(Assembly.Load(“QCEntities”))
.CurrentSessionContext()
.BuildSessionFactory();
}
}
公共类SAPDatabaseContext:DatabaseContext
{
公共ISessionFactory GetSessionFactory()
{
流畅地返回。Configure()
.Database(MsSqlConfiguration.MsSql2008.ConnectionString(c=>c.fromConnectionString WithKey(“SAPConnection”))
.Mappings(m=>m.FluentMappings.AddFromAssembly(Assembly.Load(“SAPEntities”))
.CurrentSessionContext()
.BuildSessionFactory();
}
}
我的解决方案与Nick相同,但我将从存储库中删除以了解哪个工作单元,但我使用实体上的属性来了解它属于哪个工作单元
builder.RegisterType<UnitOfWorkFactoryMain>().SingleInstance();
builder.RegisterType<UnitOfWorkFactorySecondary>().SingleInstance();
builder.Register(c => new UnitOfWork(c.Resolve<UnitOfWorkFactoryMain>()))
.Keyed<IUnitOfWork>(Database.System).InstancePerLifetimeScope();
builder.Register(c => new UnitOfWork(c.Resolve<UnitOfWorkFactorySecondary>()))
.Keyed<IUnitOfWork>(Database.Secondary).InstancePerLifetimeScope();