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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "matching_elements.h"
#include <algorithm>
namespace search {
MatchingElements::MatchingElements() = default;
MatchingElements::~MatchingElements() = default;
void
MatchingElements::add_matching_elements(uint32_t docid, const vespalib::string &field_name, const std::vector<uint32_t> &elements)
{
auto &list = _map[key_t(docid, field_name)];
std::vector<uint32_t> new_list;
std::set_union(list.begin(), list.end(), elements.begin(), elements.end(), std::back_inserter(new_list));
list = std::move(new_list);
}
const std::vector<uint32_t> &
MatchingElements::get_matching_elements(uint32_t docid, const vespalib::string &field_name) const
{
static const std::vector<uint32_t> empty;
auto res = _map.find(key_t(docid, field_name));
if (res == _map.end()) {
return empty;
}
return res->second;
}
} // namespace search
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