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-/**
- * Copyright (C) 2021-present MongoDB, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the Server Side Public License, version 1,
- * as published by MongoDB, Inc.
- *
- * 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
- * Server Side Public License for more details.
- *
- * You should have received a copy of the Server Side Public License
- * along with this program. If not, see
- * <http://www.mongodb.com/licensing/server-side-public-license>.
- *
- * As a special exception, the copyright holders give permission to link the
- * code of portions of this program with the OpenSSL library under certain
- * conditions as described in each individual source file and distribute
- * linked combinations including the program with the OpenSSL library. You
- * must comply with the Server Side Public License in all respects for
- * all of the code used other than as permitted herein. If you modify file(s)
- * with this exception, you may extend this exception to your version of the
- * file(s), but you are not obligated to do so. If you do not wish to do so,
- * delete this exception statement from your version. If you delete this
- * exception statement from all source files in the program, then also delete
- * it in the license file.
- */
-
-#pragma once
-
-#include <memory>
-#include <vector>
-
-#include "mongo/db/sorter/options.h"
-#include "mongo/db/sorter/sorter_gen.h"
-#include "mongo/util/assert_util.h"
-
-namespace mongo::sorter {
-template <typename Key, typename Value>
-class SortedDataIterator {
-public:
- using Data = std::pair<Key, Value>;
- using Settings = std::pair<typename Key::SorterDeserializeSettings,
- typename Value::SorterDeserializeSettings>;
-
- enum class ReturnPolicy {
- kCopy,
- kMove,
- };
-
- SortedDataIterator(ReturnPolicy returnPolicy = ReturnPolicy::kMove)
- : _returnPolicy(returnPolicy) {}
-
- SortedDataIterator(const SortedDataIterator&) = delete;
- SortedDataIterator& operator=(const SortedDataIterator&) = delete;
-
- virtual ~SortedDataIterator() {}
-
- virtual bool more() const = 0;
-
- virtual Data next() = 0;
-
- virtual SorterRange getRange() const {
- MONGO_UNREACHABLE;
- }
-
-protected:
- ReturnPolicy _returnPolicy;
-};
-} // namespace mongo::sorter