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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 <vespa/searchlib/fef/blueprint.h>
namespace search::features {
/**
* Implements the executor for field length.
*/
class FieldLengthExecutor : public fef::FeatureExecutor {
private:
std::vector<fef::TermFieldHandle> _fieldHandles;
const fef::MatchData *_md;
void handle_bind_match_data(const fef::MatchData &md) override;
public:
/**
* Constructs an executor for field length.
*
* @param env The query environment
* @param fieldId The field id
*/
FieldLengthExecutor(const fef::IQueryEnvironment &env, uint32_t fieldId);
void execute(uint32_t docId) override;
};
/**
* Implements the blueprint for field length.
*/
class FieldLengthBlueprint : public fef::Blueprint {
private:
const fef::FieldInfo *_field;
public:
FieldLengthBlueprint();
void visitDumpFeatures(const fef::IIndexEnvironment &env, fef::IDumpFeatureVisitor &visitor) const override;
fef::Blueprint::UP createInstance() const override;
fef::FeatureExecutor &createExecutor(const fef::IQueryEnvironment &env, vespalib::Stash &stash) const override;
fef::ParameterDescriptions getDescriptions() const override {
return fef::ParameterDescriptions().desc().indexField(fef::ParameterCollection::SINGLE);
}
bool setup(const fef::IIndexEnvironment & env, const fef::ParameterList & params) override;
};
}
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