Json_wrapper_crc_hasher Class Reference

Helper class for building a hash key. More...

#include <json_hash.h>

Inheritance diagram for Json_wrapper_crc_hasher:

Public Member Functions
	Json_wrapper_crc_hasher (ulonglong hash_val)
ulonglong	get_hash_value () override
	Return the computed hash value in integer form. More...
void	add_character (uchar ch) override
void	add_string (const char *str, size_t len) override
Public Member Functions inherited from Json_wrapper_hasher
void	add_integer (longlong ll)
void	add_double (double d)
virtual	~Json_wrapper_hasher ()=default

Private Member Functions
void	add_to_crc (uchar ch)
	Add another character to the evolving crc. More...

Private Attributes
ulonglong	m_crc

Detailed Description

Helper class for building a hash key.

Constructor & Destructor Documentation

Json_wrapper_crc_hasher()

Json_wrapper_crc_hasher::Json_wrapper_crc_hasher ( ulonglong  hash_val )

inlineexplicit

Member Function Documentation

add_character()

void Json_wrapper_crc_hasher::add_character ( uchar  ch )

inlineoverridevirtual

Implements Json_wrapper_hasher.

add_string()

void Json_wrapper_crc_hasher::add_string ( const char *  str, size_t  len  )

inlineoverridevirtual

Implements Json_wrapper_hasher.

add_to_crc()

void Json_wrapper_crc_hasher::add_to_crc ( uchar  ch )

inlineprivate

Add another character to the evolving crc.

Parameters

[in]

ch

The character to add

get_hash_value()

ulonglong Json_wrapper_crc_hasher::get_hash_value ( )

inlineoverridevirtual

Return the computed hash value in integer form.

This is optional as each seperate hasher would like to produce hash in different forms.

Reimplemented from Json_wrapper_hasher.

Member Data Documentation

m_crc

ulonglong Json_wrapper_crc_hasher::m_crc

private

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The documentation for this class was generated from the following file:

• sql-common/json_hash.h