Unity的PerResolveLifetimeManager for Repositories，Unit of Work和Entity Framework DBContext

Question

我想将存储库，服务和UoW注入应用层，并将DBcontext注入UoW和存储库。

DBContext必须与UoW中的相同上下文和AppLayer中的每个存储库相同，但必须在处理applayer后处置，并且必须在每个AppLayer解析中创建新的DBContext。

Unity的DBContext类型映射配置中的PerResolveLifetimeManager是否适合这种情况？

示例：

//main
appLayer = resolve<IAppLayer>
appLayer.doSomeStuff()
appLayer.dispose()
// end main

//applayer class
public class AppLayer : IAppLayer{

  AppLayer(IRepository, IBusinesService, IUoW){...//init vbles} //ctor, dependencies injected by Unity

  public void doSomeStuff(){

    using(transactionScope){

      businessEntity = IRepository.findEntity()
      IBusinessService.modifyEntity(businessEntity) 
      IUoW.saveChanges() //works because IRepository is using the same DBContext to find the entity, so the entity is attached to the same DBContext.

    }//end using

  }//end doSomeStuff

}//end applayerclass

Answer 1

PerResolveLifetimeManager非常适合这种情况。我做了一个经验测试检查持久性缓存和实例哈希码。