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document.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/builder/stream/document-fwd.hpp>
18 
19 #include <bsoncxx/builder/core.hpp>
20 #include <bsoncxx/builder/stream/key_context.hpp>
21 #include <bsoncxx/builder/stream/single_context.hpp>
22 #include <bsoncxx/document/value.hpp>
23 #include <bsoncxx/document/view.hpp>
24 
25 #include <bsoncxx/config/prelude.hpp>
26 
27 namespace bsoncxx {
28 namespace v_noabi {
29 namespace builder {
30 namespace stream {
31 
40 class document : public key_context<> {
41  public:
45  BSONCXX_INLINE document() : key_context<>(&_core), _core(false) {}
46 
50  BSONCXX_INLINE bsoncxx::v_noabi::document::view view() const {
51  return _core.view_document();
52  }
53 
57  BSONCXX_INLINE operator bsoncxx::v_noabi::document::view() const {
58  return view();
59  }
60 
71  return _core.extract_document();
72  }
73 
77  BSONCXX_INLINE void clear() {
78  _core.clear();
79  }
80 
81  private:
82  core _core;
83 };
84 
85 } // namespace stream
86 } // namespace builder
87 } // namespace v_noabi
88 } // namespace bsoncxx
89 
90 #include <bsoncxx/config/postlude.hpp>
A low-level interface for constructing BSON documents and arrays.
Definition: core.hpp:45
void clear()
Deletes the contents of the underlying BSON datum.
bsoncxx::v_noabi::document::value extract_document()
Transfers ownership of the underlying document to the caller.
bsoncxx::v_noabi::document::view view_document() const
Gets a view over the document.
A streaming interface for constructing a BSON document.
Definition: document.hpp:40
bsoncxx::v_noabi::document::view view() const
Definition: document.hpp:50
bsoncxx::v_noabi::document::value extract()
Transfer ownership of the underlying document to the caller.
Definition: document.hpp:70
void clear()
Reset the underlying BSON to an empty document.
Definition: document.hpp:77
document()
Default constructor.
Definition: document.hpp:45
A stream context which expects a key, which can later be followed by value, then more key/value pairs...
Definition: key_context.hpp:51
A read-only BSON document that owns its underlying buffer.
Definition: value.hpp:38
A read-only, non-owning view of a BSON document.
Definition: view.hpp:35
The top-level namespace for bsoncxx library entities.
Definition: element-fwd.hpp:19