private CacheGetDelegate <TKey, TResult> GetDelegateFactory(CacheGetDelegate <TKey, TResult> leftProvider, CacheGetDelegate <TKey, TResult> rightProvider)
{
return((key, context) => leftProvider(key, c =>
{
return rightProvider(key, context);
}));
}
private void Init()
{
LevelCount = cacheProviders.Count;
if (LevelCount == 0)
{
throw new Exception("至少需要实现一个IMultilevelCacheRoute并注册");
}
CacheGetDelegate <TKey, TResult> lastProvider = cacheProviders[LevelCount - 1].Get;
for (var i = LevelCount - 2; i >= 0; i--)
{
lastProvider = GetDelegateFactory(cacheProviders[i].Get, lastProvider);
}
GetDelegate = lastProvider;
}