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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/searchcore/proton/reprocessing/i_reprocessing_rewriter.h>
#include <vespa/searchlib/attribute/attributeguard.h>
namespace proton {
/**
* Class used to populate a document field based on the content from an attribute vector.
*/
class DocumentFieldPopulator : public IReprocessingRewriter
{
private:
using AttributeVectorSP = std::shared_ptr<search::AttributeVector>;
vespalib::string _fieldName;
AttributeVectorSP _attr;
vespalib::string _subDbName;
int64_t _documentsPopulated;
public:
DocumentFieldPopulator(const vespalib::string &fieldName,
AttributeVectorSP attr,
const vespalib::string &subDbName);
~DocumentFieldPopulator() override;
const search::AttributeVector &getAttribute() const {
return *_attr;
}
void handleExisting(uint32_t lid, const std::shared_ptr<document::Document> &doc) override;
};
} // namespace proton
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