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arangodb/arangod/Aql/QueryResult.h

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C++

////////////////////////////////////////////////////////////////////////////////
/// DISCLAIMER
///
/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
///
/// 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.
///
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
///
/// @author Jan Steemann
////////////////////////////////////////////////////////////////////////////////
#ifndef ARANGOD_AQL_QUERY_RESULT_H
#define ARANGOD_AQL_QUERY_RESULT_H 1
#include <unordered_set>
#include "Basics/Common.h"
#include "Basics/Result.h"
namespace arangodb {
namespace velocypack {
class Builder;
}
namespace transaction {
class Context;
}
namespace aql {
struct QueryResult {
QueryResult& operator=(QueryResult const& other) = delete;
QueryResult(QueryResult&& other) = default;
QueryResult()
: result(),
cached(false) {}
explicit QueryResult(Result const& res)
: result(res),
cached(false) {}
explicit QueryResult(Result&& res)
: result(std::move(res)),
cached(false) {}
virtual ~QueryResult() {}
void reset(Result const& res) {
result.reset(res);
cached = false;
data.reset();
extra.reset();
context.reset();
}
void reset(Result&& res) {
result.reset(std::move(res));
cached = false;
data.reset();
extra.reset();
context.reset();
}
// Result-like interface
bool ok() const { return result.ok(); }
bool fail() const { return result.fail(); }
int errorNumber() const { return result.errorNumber(); }
bool is(int errorNumber) const { return result.errorNumber() == errorNumber; }
bool isNot(int errorNumber) const { return !is(errorNumber); }
std::string errorMessage() const { return result.errorMessage(); }
public:
Result result;
bool cached;
std::unordered_set<std::string> bindParameters;
std::vector<std::string> collectionNames;
std::shared_ptr<arangodb::velocypack::Builder> data;
std::shared_ptr<arangodb::velocypack::Builder> extra;
std::shared_ptr<transaction::Context> context;
};
} // namespace aql
} // namespace arangodb
#endif