MongoDB C++ Driver  mongocxx-3.0.2
array.hpp
1 // Copyright 2014 MongoDB Inc.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 
15 #pragma once
16 
17 #include <bsoncxx/array/view.hpp>
18 #include <bsoncxx/array/value.hpp>
19 #include <bsoncxx/builder/core.hpp>
20 #include <bsoncxx/builder/stream/array_context.hpp>
21 #include <bsoncxx/builder/stream/key_context.hpp>
22 #include <bsoncxx/builder/stream/single_context.hpp>
23 #include <bsoncxx/builder/stream/value_context.hpp>
24 
25 #include <bsoncxx/config/prelude.hpp>
26 
27 namespace bsoncxx {
28 BSONCXX_INLINE_NAMESPACE_BEGIN
29 namespace builder {
30 namespace stream {
31 
36 class array : public array_context<> {
37  public:
41  BSONCXX_INLINE array() : array_context<>(&_core), _core(true) {
42  }
43 
47  BSONCXX_INLINE bsoncxx::array::view view() const {
48  return _core.view_array();
49  }
50 
54  BSONCXX_INLINE operator bsoncxx::array::view() const {
55  return view();
56  }
57 
67  BSONCXX_INLINE bsoncxx::array::value extract() {
68  return _core.extract_array();
69  }
70 
74  BSONCXX_INLINE void clear() {
75  _core.clear();
76  }
77 
78  private:
79  core _core;
80 };
81 
82 } // namespace stream
83 } // namespace builder
84 BSONCXX_INLINE_NAMESPACE_END
85 } // namespace bsoncxx
86 
87 #include <bsoncxx/config/postlude.hpp>
A low-level interface for constructing BSON documents and arrays.
Definition: core.hpp:42
A read-only BSON array that owns its underlying buffer.
Definition: value.hpp:34
A stream context which expects any number of values.
Definition: array_context.hpp:52
array()
Default constructor.
Definition: array.hpp:41
A streaming interface for constructing a BSON array.
Definition: array.hpp:36
bsoncxx::array::value extract()
Transfer ownership of the underlying array to the caller.
Definition: array.hpp:67
void clear()
Delete the contents of the underlying BSON datum.
A read-only, non-owning view of a BSON document.
Definition: view.hpp:33
array::view view_array() const
Get a view over the array.
void clear()
Reset the underlying BSON to an empty array.
Definition: array.hpp:74
array::value extract_array()
Transfer ownership of the underlying document to the caller.
bsoncxx::array::view view() const
Definition: array.hpp:47
Definition: element.hpp:24