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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 "attribute_combiner_dfw.h"
namespace search::attribute { class IAttributeContext; }
namespace search::docsummary {
class DocsumFieldWriterState;
class StructFieldsResolver;
/*
* This class reads values from multiple struct field attributes and
* inserts them as a map of struct.
*/
class StructMapAttributeCombinerDFW : public AttributeCombinerDFW
{
vespalib::string _keyAttributeName;
std::vector<vespalib::string> _valueFields;
std::vector<vespalib::string> _valueAttributeNames;
DocsumFieldWriterState* allocFieldWriterState(search::attribute::IAttributeContext &context, vespalib::Stash& stash, const MatchingElements* matching_elements) const override;
public:
StructMapAttributeCombinerDFW(const vespalib::string &fieldName,
const StructFieldsResolver& fields_resolver,
bool filter_elements,
std::shared_ptr<MatchingElementsFields> matching_elems_fields);
~StructMapAttributeCombinerDFW() override;
};
}
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