lob::Deleter Class Reference

#include <lob0del.h>

Public Member Functions
	Deleter (DeleteContext &ctx)
	Constructor. More...
dberr_t	destroy ()
	Free the LOB object. More...
dberr_t	free_first_page ()
	Free the first page of the BLOB and update the BLOB reference in the clustered index. More...

Private Member Functions
void	x_latch_rec_page ()
	Obtain an x-latch on the clustered index record page. More...
bool	validate_page_type (const page_t *page) const
	Validate the page type of the given page frame. More...
bool	validate_zblob_page_type (const page_t *page) const
	Check if the page type is set correctly. More...
bool	validate_blob_page_type (const page_t *page) const
	Check if the page type is set correctly. More...
bool	can_free () const
	Check if the BLOB can be freed. More...

Private Attributes
DeleteContext &	m_ctx
mtr_t	m_mtr

Constructor & Destructor Documentation

Deleter()

lob::Deleter::Deleter ( DeleteContext &  ctx )

inline

Constructor.

Member Function Documentation

can_free()

bool Deleter< class >::can_free ( ) const

private

Check if the BLOB can be freed.

If the clustered index record is not the owner of the LOB, then it cannot be freed. Also, during rollback, if inherited flag is set, then LOB will not be freed.

Returns

true if the BLOB can be freed, false otherwise.

destroy()

dberr_t Deleter< class >::destroy

(

)

Free the LOB object.

Returns

DB_SUCCESS on success.

free_first_page()

dberr_t Deleter< class >::free_first_page

(

)

Free the first page of the BLOB and update the BLOB reference in the clustered index.

Returns

DB_SUCCESS on pass, error code on failure.

validate_blob_page_type()

bool lob::Deleter::validate_blob_page_type ( const page_t *  page ) const

inlineprivate

Check if the page type is set correctly.

Parameters

[in]

page

the page frame.

Returns

true if page type is correct.

validate_page_type()

bool lob::Deleter::validate_page_type ( const page_t *  page ) const

inlineprivate

Validate the page type of the given page frame.

Parameters

[in]

page

the page frame.

Returns

true if valid, false otherwise.

validate_zblob_page_type()

bool lob::Deleter::validate_zblob_page_type ( const page_t *  page ) const

inlineprivate

Check if the page type is set correctly.

Parameters

[in]

page

the page frame.

Returns

true if page type is correct.

x_latch_rec_page()

void Deleter< class >::x_latch_rec_page ( )

private

Obtain an x-latch on the clustered index record page.

Member Data Documentation

m_ctx

DeleteContext& lob::Deleter::m_ctx

private

m_mtr

mtr_t lob::Deleter::m_mtr

private

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

• storage/innobase/include/lob0del.h
• storage/innobase/lob/lob0del.cc