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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "searchable.h"
#include <vespa/searchlib/fef/matchdatalayout.h>
#include <vector>
namespace search::fef { class TermFieldMatchData; }
namespace search::queryeval {
class WeightedSetTermBlueprint : public ComplexLeafBlueprint
{
HitEstimate _estimate;
fef::MatchDataLayout _layout;
FieldSpec _children_field;
std::vector<int32_t> _weights;
std::vector<Blueprint*> _terms;
WeightedSetTermBlueprint(const WeightedSetTermBlueprint &); // disabled
WeightedSetTermBlueprint &operator=(const WeightedSetTermBlueprint &); // disabled
public:
WeightedSetTermBlueprint(const FieldSpec &field);
~WeightedSetTermBlueprint();
// used by create visitor
// matches signature in dot product blueprint for common blueprint
// building code. Hands out the same field spec to all children.
FieldSpec getNextChildField(const FieldSpec &) { return _children_field; }
// used by create visitor
void addTerm(Blueprint::UP term, int32_t weight);
SearchIteratorUP createLeafSearch(const fef::TermFieldMatchDataArray &tfmda, bool strict) const override;
void visitMembers(vespalib::ObjectVisitor &visitor) const override;
private:
void fetchPostings(bool strict, const BitVector * filter) override;
};
}
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