hint.hpp

// Copyright 2015 MongoDB Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
 
#pragma once
 
#include <bsoncxx/document/value.hpp>
#include <bsoncxx/document/view_or_value.hpp>
#include <bsoncxx/stdx/optional.hpp>
#include <bsoncxx/string/view_or_value.hpp>
#include <bsoncxx/types/bson_value/view.hpp>
#include <mongocxx/stdx.hpp>
 
#include <mongocxx/config/prelude.hpp>
 
namespace mongocxx {
MONGOCXX_INLINE_NAMESPACE_BEGIN
 
class MONGOCXX_API hint {
   public:
    hint(bsoncxx::document::view_or_value index);
 
    explicit hint(bsoncxx::string::view_or_value index);
 
    friend MONGOCXX_API bool MONGOCXX_CALL operator==(const hint& index_hint, std::string index);
 
    friend MONGOCXX_API bool MONGOCXX_CALL operator==(const hint& index_hint,
                                                      bsoncxx::document::view index);
 
    bsoncxx::types::bson_value::view to_value() const;
 
    MONGOCXX_INLINE operator bsoncxx::types::bson_value::view() const;
 
   private:
    stdx::optional<bsoncxx::document::view_or_value> _index_doc;
    stdx::optional<bsoncxx::string::view_or_value> _index_string;
};
 
MONGOCXX_API bool MONGOCXX_CALL operator==(std::string index, const hint& index_hint);
 
MONGOCXX_API bool MONGOCXX_CALL operator!=(const hint& index_hint, std::string index);
MONGOCXX_API bool MONGOCXX_CALL operator!=(std::string index, const hint& index_index);
 
MONGOCXX_API bool MONGOCXX_CALL operator==(bsoncxx::document::view index, const hint& index_hint);
 
MONGOCXX_API bool MONGOCXX_CALL operator!=(const hint& index_hint, bsoncxx::document::view index);
MONGOCXX_API bool MONGOCXX_CALL operator!=(bsoncxx::document::view index, const hint& index_hint);
 
MONGOCXX_INLINE hint::operator bsoncxx::types::bson_value::view() const {
    return to_value();
}
 
MONGOCXX_INLINE_NAMESPACE_END
}  // namespace mongocxx
 
#include <mongocxx/config/postlude.hpp>