lmdbal/serializer_stdstring.hpp

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// Squawk messenger.
// Copyright (C) 2019 Yury Gubich <blue@macaw.me>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#ifndef CORE_DATABASE_SERIALIZER_STDSTRING_HPP
#define CORE_DATABASE_SERIALIZER_STDSTRING_HPP
template<>
class DataBase::Serializer<std::string>
{
public:
Serializer():value() {};
Serializer(const std::string& p_value):value(p_value) {};
~Serializer() {};
std::string deserialize(const MDB_val& data) {
value = std::string((char*)data.mv_data, data.mv_size);
return value;
};
MDB_val setData(const std::string& data) {
value = data;
return getData();
};
MDB_val getData() {
MDB_val result;
result.mv_data = (char*)value.c_str();
result.mv_size = value.size();
return result;
};
void clear() {}; //not possible;
private:
std::string value;
};
#endif //CORE_DATABASE_SERIALIZER_STDSTRING_HPP