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 | |
24 | namespace proxima { |
25 | namespace be { |
26 | namespace index { |
27 | |
28 | ColumnReaderPtr 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 | |