mirror of https://gitee.com/bigwinds/arangodb
59 lines
1.6 KiB
C++
59 lines
1.6 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2016 by EMC Corporation, All Rights Reserved
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is EMC Corporation
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///
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/// @author Andrey Abramov
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/// @author Vasiliy Nabatchikov
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////////////////////////////////////////////////////////////////////////////////
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#ifndef IRESEARCH_TFIDF_H
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#define IRESEARCH_TFIDF_H
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#include "scorers.hpp"
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NS_ROOT
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class tfidf_sort : public sort {
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public:
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DECLARE_SORT_TYPE();
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static CONSTEXPR bool WITH_NORMS() NOEXCEPT {
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return false;
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}
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// for use with irs::order::add<T>() and default args (static build)
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DECLARE_FACTORY();
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typedef float_t score_t;
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explicit tfidf_sort(bool normalize = WITH_NORMS()) NOEXCEPT;
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static void init(); // for trigering registration in a static build
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bool normalize() const NOEXCEPT { return normalize_; }
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void normalize(bool value) NOEXCEPT { normalize_ = value; }
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virtual sort::prepared::ptr prepare() const override;
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private:
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bool normalize_;
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}; // tfidf_sort
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NS_END
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#endif
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