Lucene.Net.Index.DirectoryReader.NumDocs C# (CSharp) Метод

        public override int NumDocs()
        {
            // Don't call ensureOpen() here (it could affect performance)
            // NOTE: multiple threads may wind up init'ing
            // numDocs... but that's harmless
            if (numDocs == - 1)
            {
                // check cache
                int n = subReaders.Sum(t => t.NumDocs()); // cache miss--recompute
            	numDocs = n;
            }
            return numDocs;
        }