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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "equivsearch.h"
#include <vespa/vespalib/util/left_right_heap.h>
namespace search::queryeval {
template <bool strict, typename Parent>
class EquivImpl : public Parent
{
private:
fef::MatchData::UP _inputMatchData;
fef::TermMatchDataMerger _merger;
bool _valid;
protected:
void doUnpack(uint32_t docid) override;
public:
/**
* Create a new Equiv Search with the given children.
*
* @param children the search objects that should be equivalent
**/
EquivImpl(MultiSearch::Children children,
fef::MatchData::UP inputMatchData,
const fef::TermMatchDataMerger::Inputs &inputs,
const fef::TermFieldMatchDataArray &outputs);
};
template<bool strict, typename Parent>
EquivImpl<strict, Parent>::EquivImpl(MultiSearch::Children children,
fef::MatchData::UP inputMatchData,
const fef::TermMatchDataMerger::Inputs &inputs,
const fef::TermFieldMatchDataArray &outputs)
: Parent(std::move(children), NoUnpack()),
_inputMatchData(std::move(inputMatchData)),
_merger(inputs, outputs),
_valid(outputs.valid())
{
}
template<bool strict, typename Parent>
void
EquivImpl<strict, Parent>::doUnpack(uint32_t docid)
{
if (_valid) {
MultiSearch::doUnpack(docid);
_merger.merge(docid);
}
}
SearchIterator::UP
EquivSearch::create(Children children,
fef::MatchData::UP inputMatchData,
const fef::TermMatchDataMerger::Inputs &inputs,
const fef::TermFieldMatchDataArray &outputs,
bool strict)
{
if (strict) {
if (children.size() < 0x70) {
using Parent = StrictHeapOrSearch<NoUnpack, vespalib::LeftArrayHeap, uint8_t>;
return std::make_unique<EquivImpl<true, Parent>>(std::move(children), std::move(inputMatchData), inputs, outputs);
} else {
using Parent = StrictHeapOrSearch<NoUnpack, vespalib::LeftHeap, uint32_t>;
return std::make_unique<EquivImpl<true, Parent>>(std::move(children), std::move(inputMatchData), inputs, outputs);
}
} else {
using Parent = OrLikeSearch<false, NoUnpack>;
return std::make_unique<EquivImpl<false, Parent>>(std::move(children), std::move(inputMatchData), inputs, outputs);
}
}
}
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