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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 "posocc_field_params.h"
#include <vector>
namespace search::bitcompression {
class PosOccFieldsParams
{
// Cache pointers.
uint32_t _numFields;
const PosOccFieldParams *_fieldParams;
// Storage
std::vector<PosOccFieldParams> _params;
public:
using PostingListParams = index::PostingListParams;
using Schema = index::Schema;
PosOccFieldsParams();
PosOccFieldsParams(const PosOccFieldsParams &rhs);
PosOccFieldsParams &operator=(const PosOccFieldsParams &rhs);
bool operator==(const PosOccFieldsParams &rhs) const;
void cacheParamsRef() {
_numFields = _params.size();
_fieldParams = _params.empty() ? nullptr : &_params[0];
}
void assertCachedParamsRef() const;
uint32_t getNumFields() const { return _numFields; }
const PosOccFieldParams *getFieldParams() const { return _fieldParams; }
void getParams(PostingListParams ¶ms) const;
void setParams(const PostingListParams ¶ms);
void setSchemaParams(const Schema &schema, const uint32_t indexId);
void readHeader(const vespalib::GenericHeader &header, const vespalib::string &prefix);
void writeHeader(vespalib::GenericHeader &header, const vespalib::string &prefix) const;
void set_field_length_info(const index::FieldLengthInfo &field_length_info);
};
}
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