/// <summary>
        /// 刷新当前操作对象缓存区
        /// </summary>
        /// <param name="collectionName"></param>
        public void FlushCurrentCollectionCache(string collectionName = null)
        {
            if (DbCacheManager == null)
            {
                throw new InvalidOperationException("DbCacheManager is undefined, please define it first.");
            }

            DbCacheManager.FlushCurrentCollectionCache(collectionName);
        }