class xf::database::gqe::BloomFilterConfig

#include "gqe_filter_config.hpp"

Overview

class BloomFilterConfig: protected xf::database::gqe::BaseConfig

Methods

BloomFilterConfig

BloomFilterConfig (
    Table tab_in,
    std::string filter_condition,
    std::string input_str,
    uint64_t bf_size,
    Table tab_out,
    std::string output_str
    )

constructor of BloomFilterConfig .

This class generates filter configuration bits by paring the .run() arguments

Parameters:

tab_in	input table
filter_condition	filter condition for input table
input_str	column name(s) of input table to be filtered
bf_size	bloom-filter size in bits
tab_out	result table
output_str	output column mapping

getFilterConfigBits

ap_uint <512>* getFilterConfigBits () const

get the gqeFilter kernel config

Returns:

gqeFilter config bits (14 * ap_uint<512>)

getShuffleScan

std::vector <int8_t> getShuffleScan () const

get the sw-shuffle config for scan

Returns:

the scan sw_shuffle cfg

getShuffleWrite

std::vector <int8_t> getShuffleWrite () const

get the sw-shuffle config for write out

Returns:

the write out sw_shuffle cfg