用NHibernate实现统一拦截下从代理获取真实实例

我们使用拦截进行缓存。所以在我们班上 ICallHandler 我们有这样的代码:

    public IMethodReturn Invoke(IMethodInvocation input, GetNextHandlerDelegate getNext)
    {
        //...
        var nextHandler = getNext();

        var realReturn = nextHandler(input, getNext);

        var cacheRefreshingItemParameters = new CacheRefreshingItemParameters
        {
            InterfaceMethod = input.MethodBase,
            InterfaceType = input.MethodBase.DeclaringType,
            TargetType = input.Target.GetType() //remember original type
        };
        _cacheProvider.Add(cacheKey, realReturn.ReturnValue, cacheRefreshingItemParameters);

        //...
        return (cachedReturn);
    }

我们将cacheRefreshingItemParameters放入cache UpdateCallback,然后解析原始服务:

var service = _unityContainer.Resolve(parameters.TargetType);