ranking_function_none.h

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/*
    RANKING_FUNCTION_NONE.H
    -----------------------
    Copyright (c) 2021 Andrew Trotman
    Released under the 2-clause BSD license (See:https://en.wikipedia.org/wiki/BSD_licenses)
*/
#pragma once

#include <math.h>
#include <stdio.h>
#include <stdint.h>

#include <vector>

#include "forceinline.h"
#include "compress_integer.h"
#include "index_postings_impact.h"


namespace JASS
    {
    /*
        CLASS RANKING_FUNCTION_NONE
        ---------------------------
    */
    class ranking_function_none
        {
        public:
            /*
                RANKING_FUNCTION_NONE::RANKING_FUNCTION_NONE()
                ----------------------------------------------
            */
            ranking_function_none()
                {
                /* Nothing */
                }

            /*
                RANKING_FUNCTION_NONE::~RANKING_FUNCTION_NONE()
                -----------------------------------------------
            */
            ~ranking_function_none()
                {
                /* Nothing */
                }

            /*
                RANKING_FUNCTION_ATIRE_BM25::COMPUTE_IDF_COMPONENT()
                ----------------------------------------------------
            */
            forceinline void compute_idf_component(compress_integer::integer document_frequency, compress_integer::integer documents_in_collection)
                {
                /* Nothing */
                }

            /*
                RANKING_FUNCTION_ATIRE_BM25::COMPUTE_TF_COMPONENT()
                ---------------------------------------------------
            */
            forceinline void compute_tf_component(index_postings_impact::impact_type term_frequency)
                {
                /* Nothing */
                }

            /*
                RANKING_FUNCTION_ATIRE_BM25::COMPUTE_SCORE()
                --------------------------------------------
            */
            forceinline double compute_score(compress_integer::integer document_id, index_postings_impact::impact_type term_frequency)
                {
                return term_frequency;
                }
        };
    }