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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "termfieldmatchdataarray.h"
#include "termfieldmatchdata.h"
#include <vector>
namespace search::fef {
class TermMatchDataMerger
{
public:
struct Input {
const TermFieldMatchData *matchData;
double exactness;
Input() : matchData(nullptr), exactness(0.0) {}
Input(const TermFieldMatchData *arg_matchData, double arg_exactness) noexcept
: matchData(arg_matchData), exactness(arg_exactness)
{}
};
using Inputs = std::vector<Input>;
private:
std::vector<Inputs> _inputs;
const TermFieldMatchDataArray _output;
std::vector<TermFieldMatchDataPosition> _scratch;
void merge(uint32_t docid, const Inputs &in, TermFieldMatchData &out);
public:
TermMatchDataMerger(const TermMatchDataMerger &) = delete;
TermMatchDataMerger &operator=(const TermMatchDataMerger &) = delete;
TermMatchDataMerger(const Inputs &allinputs, TermFieldMatchDataArray outputs);
~TermMatchDataMerger();
void merge(uint32_t docid);
};
}
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