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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 "searchiterator.h"
namespace search::fef { class TermFieldMatchData; }
namespace search::queryeval {
class ElementIterator {
public:
using UP = std::unique_ptr<ElementIterator>;
ElementIterator(SearchIterator::UP search) : _search(std::move(search)) { }
virtual ~ElementIterator() = default;
bool seek(uint32_t docId) {
return _search->seek(docId);
}
void initFullRange() {
_search->initFullRange();
}
void initRange(uint32_t beginid, uint32_t endid) {
_search->initRange(beginid, endid);
}
uint32_t getDocId() const {
return _search->getDocId();
}
virtual void getElementIds(uint32_t docId, std::vector<uint32_t> & elementIds) = 0;
virtual void mergeElementIds(uint32_t docId, std::vector<uint32_t> & elementIds) = 0;
virtual void visitMembers(vespalib::ObjectVisitor &visitor) const;
protected:
SearchIterator::UP _search;
};
class ElementIteratorWrapper : public ElementIterator {
public:
ElementIteratorWrapper(SearchIterator::UP search, fef::TermFieldMatchData & tfmd);
~ElementIteratorWrapper() override;
void getElementIds(uint32_t docId, std::vector<uint32_t> & elementIds) override;
void mergeElementIds(uint32_t docId, std::vector<uint32_t> & elementIds) override;
private:
fef::TermFieldMatchData & _tfmd;
};
}
void visit(vespalib::ObjectVisitor &self, const vespalib::string &name,
const search::queryeval::ElementIterator &obj);
void visit(vespalib::ObjectVisitor &self, const vespalib::string &name,
const search::queryeval::ElementIterator *obj);
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