I_rewriter Class Reference

An abstract base class to enable the implementation of various query rewriters. More...

#include <sql_rewrite.h>

Inheritance diagram for I_rewriter:

Public Member Functions
	I_rewriter (THD *thd, Consumer_type type)
virtual	~I_rewriter ()
	I_rewriter (const I_rewriter &)=delete
const I_rewriter &	operator= (const I_rewriter &)=delete
	I_rewriter (const I_rewriter &&)=delete
const I_rewriter &	operator= (const I_rewriter &&)=delete
void	set_consumer_type (Consumer_type type)
	Reset the previous consumer type. More...
Consumer_type	consumer_type ()
	Return the current consumer type set in the object. More...
virtual bool	rewrite (String &rlb) const =0

Protected Attributes
THD *const	m_thd
Consumer_type	m_consumer_type

Detailed Description

An abstract base class to enable the implementation of various query rewriters.

It accepts a THD pointer and the intended target type where the query will to be written. It either sets the thd->rewritten_query with a rewritten query, or clears it if no rewriting took place. Concrete classes must implement the rewrite() method to rewrite the query. Despite concrete classes may accept additional parameters, it is recommended not to create their objects directly.

Constructor & Destructor Documentation

I_rewriter() [1/3]

I_rewriter::I_rewriter	(	THD *	thd,
		Consumer_type	type
	)

~I_rewriter()

I_rewriter::~I_rewriter ( )

virtualdefault

I_rewriter() [2/3]

I_rewriter::I_rewriter ( const I_rewriter &  )

delete

I_rewriter() [3/3]

I_rewriter::I_rewriter ( const I_rewriter &&  )

delete

Member Function Documentation

consumer_type()

Consumer_type I_rewriter::consumer_type

(

)

Return the current consumer type set in the object.

Return values

Consumer

type set currently.

operator=() [1/2]

const I_rewriter & I_rewriter::operator= ( const I_rewriter &&  )

delete

operator=() [2/2]

const I_rewriter & I_rewriter::operator= ( const I_rewriter &  )

delete

rewrite()

virtual bool I_rewriter::rewrite ( String &  rlb ) const

pure virtual

Implemented in Rewriter_user, Rewriter_create_user, Rewriter_alter_user, Rewriter_show_create_user, Rewriter_set, Rewriter_set_password, Rewriter_grant, Rewriter_change_replication_source, Rewriter_replica_start, Rewriter_create_server, Rewriter_alter_server, Rewriter_prepare, Rewriter_clone, and Rewriter_start_group_replication.

set_consumer_type()

void I_rewriter::set_consumer_type

(

Consumer_type

type

)

Reset the previous consumer type.

Parameters

[in]

type

new consumer type for which query is to be rewritten

Member Data Documentation

m_consumer_type

Consumer_type I_rewriter::m_consumer_type

protected

m_thd

THD* const I_rewriter::m_thd

protected

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

• sql/sql_rewrite.h
• sql/sql_rewrite.cc