lob::BaseInserter Struct Reference

This struct can hold BLOB routines/functions, and state variables, that are common for compressed and uncompressed BLOB. More...

#include <lob0ins.h>

Inheritance diagram for lob::BaseInserter:

Public Member Functions
	BaseInserter (InsertContext *ctx)
	Constructor. More...
mtr_t *	start_blob_mtr ()
	Start the BLOB mtr. More...
buf_block_t *	alloc_blob_page ()
	Allocate one BLOB page. More...
page_t *	get_previous_blob_page ()
	Get the previous BLOB page frame. More...
buf_block_t *	get_previous_blob_block ()
	Get the previous BLOB page block. More...
bool	is_index_sdi ()
	Check if the index is SDI index. More...
page_t *	cur_page () const
	Get the current BLOB page frame. More...

Protected Attributes
InsertContext *	m_ctx
	The BLOB operation context. More...
dberr_t	m_err
	Success or failure status of the operation so far. More...
mtr_t	m_blob_mtr
	The mini trx used to write into blob pages. More...
page_no_t	m_prev_page_no
	The previous BLOB page number. More...
buf_block_t *	m_cur_blob_block
	The current BLOB buf_block_t object. More...
page_no_t	m_cur_blob_page_no
	The current BLOB page number. More...

Detailed Description

This struct can hold BLOB routines/functions, and state variables, that are common for compressed and uncompressed BLOB.

Constructor & Destructor Documentation

BaseInserter()

lob::BaseInserter::BaseInserter ( InsertContext *  ctx )

inline

Constructor.

Parameters

[in]

ctx

blob operation context.

Member Function Documentation

alloc_blob_page()

buf_block_t * lob::BaseInserter::alloc_blob_page

(

)

Allocate one BLOB page.

Returns

the allocated block of the BLOB page.

cur_page()

page_t * lob::BaseInserter::cur_page ( ) const

inline

Get the current BLOB page frame.

Returns

the current BLOB page frame.

get_previous_blob_block()

buf_block_t * lob::BaseInserter::get_previous_blob_block

(

)

Get the previous BLOB page block.

This will return a BLOB block. It should not be called for the first BLOB page, because it will not have a previous BLOB page.

Returns

the previous BLOB block.

get_previous_blob_page()

page_t * lob::BaseInserter::get_previous_blob_page

(

)

Get the previous BLOB page frame.

This will return a BLOB page. It should not be called for the first BLOB page, because it will not have a previous BLOB page.

Returns

the previous BLOB page frame.

is_index_sdi()

bool lob::BaseInserter::is_index_sdi ( )

inline

Check if the index is SDI index.

Returns

true if index is SDI index else false

start_blob_mtr()

mtr_t * lob::BaseInserter::start_blob_mtr ( )

inline

Start the BLOB mtr.

Returns

pointer to the BLOB mtr.

Member Data Documentation

m_blob_mtr

mtr_t lob::BaseInserter::m_blob_mtr

protected

The mini trx used to write into blob pages.

m_ctx

InsertContext* lob::BaseInserter::m_ctx

protected

The BLOB operation context.

m_cur_blob_block

buf_block_t* lob::BaseInserter::m_cur_blob_block

protected

The current BLOB buf_block_t object.

m_cur_blob_page_no

page_no_t lob::BaseInserter::m_cur_blob_page_no

protected

The current BLOB page number.

m_err

dberr_t lob::BaseInserter::m_err

protected

Success or failure status of the operation so far.

m_prev_page_no

page_no_t lob::BaseInserter::m_prev_page_no

protected

The previous BLOB page number.

This is needed to maintain the linked list of BLOB pages.

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

• storage/innobase/include/lob0ins.h
• storage/innobase/lob/lob0ins.cc