Header passed in front of every attribute value in AttrInfo signal. More...

#include <AttributeHeader.hpp>

Public Member Functions
	STATIC_CONST (PSEUDO=0x8000)
	STATIC_CONST (FRAGMENT=0xFFFE)
	STATIC_CONST (ROW_COUNT=0xFFFD)
	STATIC_CONST (COMMIT_COUNT=0xFFFC)
	STATIC_CONST (RANGE_NO=0xFFFB)
	STATIC_CONST (ROW_SIZE=0xFFFA)
	STATIC_CONST (FRAGMENT_FIXED_MEMORY=0xFFF9)
	STATIC_CONST (RECORDS_IN_RANGE=0xFFF8)
	STATIC_CONST (DISK_REF=0xFFF7)
	STATIC_CONST (ROWID=0xFFF6)
	STATIC_CONST (ROW_GCI=0xFFF5)
	STATIC_CONST (FRAGMENT_VARSIZED_MEMORY=0xFFF4)
	STATIC_CONST (READ_PACKED=0xFFF3)
	STATIC_CONST (ANY_VALUE=0xFFF2)
	STATIC_CONST (COPY_ROWID=0xFFF1)
	STATIC_CONST (READ_ALL=0xFFF0)
	STATIC_CONST (READ_LCP=0xFFEF)
	STATIC_CONST (LOCK_REF=0xFFEE)
	STATIC_CONST (OP_ID=0xFFED)
	STATIC_CONST (FRAGMENT_EXTENT_SPACE=0xFFEC)
	STATIC_CONST (FRAGMENT_FREE_EXTENT_SPACE=0xFFEB)
	STATIC_CONST (FLUSH_AI=0xFFEA)
	STATIC_CONST (CORR_FACTOR32=0xFFE9)
	STATIC_CONST (CORR_FACTOR64=0xFFE8)
	STATIC_CONST (ROW_GCI64=0xFFE7)
	STATIC_CONST (ROW_AUTHOR=0xFFE6)
	STATIC_CONST (OPTIMIZE=0xFFE0)
	STATIC_CONST (OPTIMIZE_OPTIONS_MASK=0xFFFF)
	STATIC_CONST (OPTIMIZE_MOVE_VARPART=0x0001)
	STATIC_CONST (OPTIMIZE_MOVE_FIXPART=0x0002)
	STATIC_CONST (INDEX_STAT_KEY=0xFFD0)
	STATIC_CONST (INDEX_STAT_VALUE=0xFFD1)
Uint32	getHeaderSize () const
void	insertHeader (Uint32 *)
AttributeHeader *	getNext () const
Uint32 *	getDataPtr () const
Uint32	getAttributeId () const
void	setAttributeId (Uint32)
Uint32	getByteSize () const
void	setByteSize (Uint32)
Uint32	getDataSize () const
void	setDataSize (Uint32)
bool	isNULL () const
void	setNULL ()
void	print (FILE *)
	AttributeHeader (Uint32=0)
	AttributeHeader (Uint32 anAttributeId, Uint32 aByteSize)

Static Public Member Functions
static void	init (Uint32 *aHeaderPtr, Uint32 anAttributeId, Uint32 aByteSize)
static Uint32	getByteSize (Uint32)
static Uint32	getDataSize (Uint32)
static Uint32	getAttributeId (Uint32 id)

Public Attributes
Uint32	m_value

Friends
class	Dbtup
class	Backup
class	NdbOperation
class	DbUtil
class	Suma

Detailed Description

Header passed in front of every attribute value in AttrInfo signal.

Definition at line 25 of file AttributeHeader.hpp.

Member Function Documentation

Uint32 AttributeHeader::getAttributeId ( ) const

inline

Getters and Setters

Definition at line 188 of file AttributeHeader.hpp.

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Uint32 * AttributeHeader::getDataPtr ( ) const

inline

Get location of attribute value

Definition at line 239 of file AttributeHeader.hpp.

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Uint32 AttributeHeader::getHeaderSize ( ) const

inline

Returns size of AttributeHeader (usually one or two words)

Definition at line 181 of file AttributeHeader.hpp.

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AttributeHeader * AttributeHeader::getNext ( ) const

inline

Get next attribute header (if there is one)

Definition at line 252 of file AttributeHeader.hpp.

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void AttributeHeader::init	(	Uint32 *	aHeaderPtr,
		Uint32	anAttributeId,
		Uint32	aByteSize
	)

inlinestatic

Initialize AttributeHeader at location aHeaderPtr

      1111111111222222222233

01234567890123456789012345678901 ssssssssssssssssiiiiiiiiiiiiiiii

i = Attribute Id s = Size of current "chunk" in bytes - 16 bits. To allow round up to word, max value is 0xFFFC (not checked). e - [ obsolete future ] Element data/Blob, read element of array If == 0 next data word contains attribute value. If == 1 next data word contains: For Array of Fixed size Elements Start Index (16 bit), Stop Index(16 bit) For Blob Start offset (32 bit) (length is defined in previous word)

An attribute value equal to "null" is represented by setting s == 0.

Definition at line 155 of file AttributeHeader.hpp.

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void AttributeHeader::insertHeader ( Uint32 * target )

inline

Store AttributeHeader in location given as argument

Definition at line 245 of file AttributeHeader.hpp.

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void AttributeHeader::print ( FILE * output )

inline

Print

Definition at line 259 of file AttributeHeader.hpp.

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AttributeHeader::STATIC_CONST ( PSEUDO = 0x8000 )

Pseudo columns

AttributeHeader::STATIC_CONST ( ROW_GCI64 = 0xFFE7 )

64-bit row gci (extending lower if not sufficient bits) read-only

AttributeHeader::STATIC_CONST ( ROW_AUTHOR = 0xFFE6 )

Row author... autoset to 0, can be over written

AttributeHeader::STATIC_CONST ( OPTIMIZE = 0xFFE0 )

Optimize pseudo column and optimization options

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

storage/ndb/include/kernel/AttributeHeader.hpp

Public Member Functions

Static Public Member Functions

Public Attributes

Friends

Detailed Description

Member Function Documentation