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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "queryterm.h"
namespace search::fef {
class ITermData;
class MatchData;
}
namespace search::query { class TermVector; }
namespace search::streaming {
/*
* Base class for query term nodes that are considered leaf nodes by
* the ranking framework but still have multiple terms used for
* search.
*/
class MultiTerm : public QueryTerm {
protected:
std::vector<std::unique_ptr<QueryTerm>> _terms;
public:
MultiTerm(std::unique_ptr<QueryNodeResultBase> result_base, const string & index, uint32_t num_terms);
MultiTerm(std::unique_ptr<QueryNodeResultBase> result_base, const string & index,
std::unique_ptr<query::TermVector> terms, Normalizing normalizing);
~MultiTerm() override;
void add_term(std::unique_ptr<QueryTerm> term);
MultiTerm* as_multi_term() noexcept override;
const MultiTerm* as_multi_term() const noexcept override;
/*
* Terms below search in different indexes when multi_index_terms() returns true.
*/
virtual bool multi_index_terms() const noexcept;
void reset() override;
bool evaluate() const override;
const std::vector<std::unique_ptr<QueryTerm>>& get_terms() const noexcept { return _terms; }
};
}
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