1/**
2 * Copyright 2021 Alibaba, Inc. and its affiliates. All Rights Reserved.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15
16 * \author Haichao.chc
17 * \date Jun 2021
18 * \brief ColumnReader load column index data and provides read ability
19 */
20
21#include "column_reader.h"
22#include "vector_column_reader.h"
23
24namespace proxima {
25namespace be {
26namespace index {
27
28ColumnReaderPtr ColumnReader::Create(const std::string &collection_name,
29 const std::string &collection_path,
30 SegmentID segment_id,
31 const std::string &column_name,
32 IndexTypes index_type) {
33 switch (index_type) {
34 case IndexTypes::PROXIMA_GRAPH_INDEX:
35 return std::make_shared<VectorColumnReader>(
36 collection_name, collection_path, segment_id, column_name);
37 default:
38 return ColumnReaderPtr();
39 }
40}
41
42
43} // end namespace index
44} // namespace be
45} // end namespace proxima
46