SenseNet.ContentRepository.Storage.DataBackingStore.GetNodeHeads C# (CSharp) Метод

        internal static IEnumerable<NodeHead> GetNodeHeads(IEnumerable<int> idArray)
        {
            var nodeHeads = new List<NodeHead>();
            var unloadHeads = new List<int>();
            foreach (var id in idArray)
            {
                string idKey = CreateNodeHeadIdCacheKey(id);
                var item = (NodeHead)DistributedApplication.Cache.Get(idKey);
                if (item == null)
                    unloadHeads.Add(id);
                else
                    nodeHeads.Add(item);
            }

            if (unloadHeads.Count > 0)
            {
                var needsSorting = nodeHeads.Count > 0;

                foreach (var head in DataProvider.Current.LoadNodeHeads(unloadHeads))
                {
                    if (head != null)
                        CacheNodeHead(head, CreateNodeHeadIdCacheKey(head.Id), CreateNodeHeadPathCacheKey(head.Path));
                    nodeHeads.Add(head);
                }

                //we need to sort the final list only if we have 
                //node heads from the cache AND the database too 
                if (needsSorting)
                {
                    //sort the node heads aligned with the original list
                    nodeHeads = (from id in idArray
                                 join head in nodeHeads.Where(h => h != null)
                                     on id equals head.Id
                                 where head != null
                                 select head).ToList();
                }
            }
            return nodeHeads;
        }
        internal static NodeHead GetNodeHeadByVersionId(int versionId)

 public static IEnumerable <NodeHead> Get(IEnumerable <int> idArray)
 {
     return(DataBackingStore.GetNodeHeads(idArray));
 }