xbNtx Class Reference

xbNtx class More...

#include <xbntx.h>

Inheritance diagram for xbNtx:

List of all members.

Public Member Functions
	xbNtx ()
	Constructor.
	xbNtx (xbDbf *)
	Constructor.
virtual	~xbNtx ()
	Destructor.
void	DumpHdrNode (xbShort Option)
	Short description.
void	DumpNodeRec (xbLong)
	Short description.
xbShort	CreateIndex (const char *, const char *, xbShort, xbShort)
	Short description.
xbLong	GetTotalNodes ()
	Short description.
xbULong	GetCurDbfRec ()
void	DumpNodeChain ()
	Short description.
xbShort	CreateKey (xbShort, xbShort)
	Short description.
xbShort	GetCurrentKey (char *key)
	Short description.
xbShort	AddKey (xbLong)
	Short description.
xbShort	UniqueIndex ()
xbShort	DeleteKey (xbLong DbfRec)
	Short description.
xbShort	KeyWasChanged ()
	Short description.
xbShort	FindKey (const char *)
	Short description.
xbShort	FindKey ()
	Short description.
xbShort	FindKey (xbDouble)
	Short description.
xbShort	GetNextKey ()
xbShort	GetLastKey ()
xbShort	GetFirstKey ()
xbShort	GetPrevKey ()
xbShort	ReIndex (void(*statusFunc)(xbLong itemNum, xbLong numItems)=0)
	Short description.
xbShort	KeyExists (char *Key)
xbShort	KeyExists (xbDouble)
	Short description.
virtual void	GetExpression (char *buf, int len)
	Short description.
xbShort	CheckIndexIntegrity (xbShort Option)
	Short description.
virtual const char *	GetExtWithDot (bool lower)
Protected Member Functions
xbLong	GetLeftNodeNo (xbShort, xbNodeLink *)
	Short description.
xbShort	CompareKey (const char *, const char *, xbShort)
	Short description.
xbShort	CompareKey (const char *, const char *)
	Short description.
xbLong	GetDbfNo (xbShort, xbNodeLink *)
	Short description.
char *	GetKeyData (xbShort, xbNodeLink *)
	Short description.
xbUShort	GetItemOffset (xbShort, xbNodeLink *, xbShort)
	Short description.
xbUShort	InsertKeyOffset (xbShort, xbNodeLink *)
	Short description.
xbUShort	GetKeysPerNode ()
	Short description.
virtual xbShort	GetHeadNode ()
	Short description.
xbShort	GetLeafNode (xbLong, xbShort)
	Short description.
xbNodeLink *	GetNodeMemory ()
	Short description.
xbLong	GetNextNodeNo ()
	Short description.
void	ReleaseNodeMemory (xbNodeLink *n, xbBool doFree=false)
	Short description.
xbULong	GetLeafFromInteriorNode (const char *, xbShort)
	Short description.
xbShort	CalcKeyLen ()
	Short description.
xbShort	PutKeyData (xbShort, xbNodeLink *)
	Short description.
xbShort	PutLeftNodeNo (xbShort, xbNodeLink *, xbLong)
	Short description.
xbShort	PutLeafNode (xbLong, xbNodeLink *)
	Short description.
xbShort	PutHeadNode (NtxHeadNode *, FILE *, xbShort)
	Short description.
xbShort	TouchIndex ()
xbShort	PutDbfNo (xbShort, xbNodeLink *, xbLong)
	Short description.
xbShort	PutKeyInNode (xbNodeLink *, xbShort, xbLong, xbLong, xbShort)
	Short description.
xbShort	SplitLeafNode (xbNodeLink *, xbNodeLink *, xbShort, xbLong)
	Short description.
xbShort	SplitINode (xbNodeLink *, xbNodeLink *, xbLong)
	Short description.
xbShort	AddToIxList ()
xbShort	RemoveFromIxList ()
xbShort	RemoveKeyFromNode (xbShort, xbNodeLink *)
	Short description.
xbShort	DeleteKeyFromNode (xbShort, xbNodeLink *)
	Short description.
xbShort	JoinSiblings (xbNodeLink *, xbShort, xbNodeLink *, xbNodeLink *)
	Short description.
xbUShort	DeleteKeyOffset (xbShort, xbNodeLink *)
	Short description.
xbShort	FindKey (const char *, xbShort, xbShort)
	Short description.
xbShort	UpdateParentKey (xbNodeLink *)
	Short description.
xbShort	GetFirstKey (xbShort)
	Short description.
xbShort	GetNextKey (xbShort)
	Short description.
xbShort	GetLastKey (xbLong, xbShort)
	Short description.
xbShort	GetPrevKey (xbShort)
	Short description.
void	UpdateDeleteList (xbNodeLink *)
	Short description.
void	ProcessDeleteList ()
	Short description.
xbShort	FindKey (const char *, xbLong)
	Short description.
virtual xbUShort	GetKeyLen ()
virtual const char *	GetKeyExpression ()
virtual void	FreeNodesMemory ()
Protected Attributes
NtxHeadNode	HeadNode
NtxLeafNode	LeafNode
xbLong	NodeLinkCtr
xbLong	ReusedNodeLinks
char	Node [XB_NTX_NODE_SIZE]
xbNodeLink *	NodeChain
xbNodeLink *	FreeNodeChain
xbNodeLink *	CurNode
xbNodeLink *	DeleteChain
NtxItem	PushItem

---

Detailed Description

xbNtx class

---

Constructor & Destructor Documentation

xbNtx::xbNtx

(

)

Constructor.

xbNtx::xbNtx

(

xbDbf *

pdbf

)

Constructor.

Parameters:

pdbf

xbNtx::~xbNtx

(

)

[virtual]

Destructor.

---

Member Function Documentation

xbShort xbNtx::AddKey

(

xbLong

DbfRec

)

[virtual]

Short description.

Parameters:

DbfRec

Implements xbIndex.

xbShort xbNtx::AddToIxList

(

)

[protected]

xbShort xbNtx::CalcKeyLen

(

void

)

[protected]

Short description.

xbShort xbNtx::CheckIndexIntegrity

(

xbShort

Option

)

[virtual]

Short description.

Parameters:

option

Implements xbIndex.

xbShort xbNtx::CompareKey	(	const char *	Key1,
		const char *	Key2
	)			[protected]

Short description.

Parameters:

	Key1
	Key2

xbShort xbNtx::CompareKey	(	const char *	Key1,
		const char *	Key2,
		xbShort	Klen
	)			[protected]

Short description.

Parameters:

	Key1
	Key2
	Klen

xbShort xbNtx::CreateIndex	(	const char *	IxName,
		const char *	Exp,
		xbShort	Unique,
		xbShort	Overlay
	)			[virtual]

Short description.

Parameters:

	IxName
	Exp
	Unique
	Overlay

Implements xbIndex.

xbShort xbNtx::CreateKey	(	xbShort	RecBufSw,
		xbShort	KeyBufSw
	)			[virtual]

Short description.

Parameters:

	RecBufSw
	KeyBufSw

Implements xbIndex.

xbShort xbNtx::DeleteKey

(

xbLong

DbfRec

)

[virtual]

Short description.

Parameters:

DbfRec

Implements xbIndex.

xbShort xbNtx::DeleteKeyFromNode	(	xbShort	pos,
		xbNodeLink *	n
	)			[protected]

Short description.

Parameters:

	pos
	n

xbUShort xbNtx::DeleteKeyOffset	(	xbShort	pos,
		xbNodeLink *	n
	)			[protected]

Short description.

Parameters:

	pos
	n

void xbNtx::DumpHdrNode

(

xbShort

Option

)

[virtual]

Short description.

Implements xbIndex.

void xbNtx::DumpNodeChain

(

void

)

[virtual]

Short description.

Implements xbIndex.

void xbNtx::DumpNodeRec

(

xbLong

n

)

[virtual]

Short description.

Parameters:

n

Implements xbIndex.

xbShort xbNtx::FindKey

(

xbDouble

d

)

[virtual]

Short description.

Parameters:

d

Implements xbIndex.

xbShort xbNtx::FindKey

(

void

)

[virtual]

Short description.

Implements xbIndex.

xbShort xbNtx::FindKey

(

const char *

Key

)

[virtual]

Short description.

Parameters:

Key

Implements xbIndex.

xbShort xbNtx::FindKey	(	const char *	Tkey,
		xbLong	DbfRec
	)			[protected]

Short description.

Parameters:

	Tkey
	DbfRec

xbShort xbNtx::FindKey	(	const char *	Tkey,
		xbShort	Klen,
		xbShort	RetrieveSw
	)			[protected]

Short description.

Parameters:

	Tkey
	Klen
	RetrieveSw

void xbNtx::FreeNodesMemory

(

)

[protected, virtual]

Implements xbIndex.

xbULong xbNtx::GetCurDbfRec

(

)

[inline, virtual]

Implements xbIndex.

xbShort xbNtx::GetCurrentKey

(

char *

key

)

[virtual]

Short description.

Parameters:

key

Implements xbIndex.

xbLong xbNtx::GetDbfNo	(	xbShort	RecNo,
		xbNodeLink *	n
	)			[protected]

Short description.

Parameters:

	RecNo
	n

void xbNtx::GetExpression	(	char *	buf,
		int	len
	)			[virtual]

Short description.

Parameters:

	buf
	len

Implements xbIndex.

const char * xbNtx::GetExtWithDot

(

bool

lower

)

[virtual]

Implements xbFile.

xbShort xbNtx::GetFirstKey

(

)

[inline, virtual]

Implements xbIndex.

xbShort xbNtx::GetFirstKey

(

xbShort

RetrieveSw

)

[protected]

Short description.

Parameters:

RetrieveSw

xbShort xbNtx::GetHeadNode

(

void

)

[protected, virtual]

Short description.

Implements xbIndex.

xbUShort xbNtx::GetItemOffset	(	xbShort	RecNo,
		xbNodeLink *	n,
		xbShort
	)			[protected]

Short description.

Parameters:

	RecNo
	n

char * xbNtx::GetKeyData	(	xbShort	RecNo,
		xbNodeLink *	n
	)			[protected]

Short description.

Parameters:

	RecNo
	n

const char * xbNtx::GetKeyExpression

(

)

[protected, virtual]

Implements xbIndex.

xbUShort xbNtx::GetKeyLen

(

)

[protected, virtual]

Implements xbIndex.

xbUShort xbNtx::GetKeysPerNode

(

void

)

[protected]

Short description.

xbShort xbNtx::GetLastKey

(

)

[inline, virtual]

Implements xbIndex.

xbShort xbNtx::GetLastKey	(	xbLong	NodeNo,
		xbShort	RetrieveSw
	)			[protected]

Short description.

Parameters:

	NodeNo
	RetrieveSw

xbULong xbNtx::GetLeafFromInteriorNode	(	const char *	Tkey,
		xbShort
	)			[protected]

Short description.

Parameters:

	Tkey

xbShort xbNtx::GetLeafNode	(	xbLong	NodeNo,
		xbShort	SetNodeChain
	)			[protected]

Short description.

Parameters:

	NodeNo
	SetNodeChain

xbLong xbNtx::GetLeftNodeNo	(	xbShort	RecNo,
		xbNodeLink *	n
	)			[protected]

Short description.

Parameters:

	RecNo
	n

xbShort xbNtx::GetNextKey

(

)

[inline, virtual]

Implements xbIndex.

xbShort xbNtx::GetNextKey

(

xbShort

RetrieveSw

)

[protected]

Short description.

Parameters:

RetrieveSw

xbLong xbNtx::GetNextNodeNo

(

)

[protected]

Short description.

xbNodeLink * xbNtx::GetNodeMemory

(

void

)

[protected]

Short description.

xbShort xbNtx::GetPrevKey

(

)

[inline, virtual]

Implements xbIndex.

xbShort xbNtx::GetPrevKey

(

xbShort

RetrieveSw

)

[protected]

Short description.

Parameters:

RetrieveSw

xbLong xbNtx::GetTotalNodes

(

void

)

[virtual]

Short description.

Implements xbIndex.

xbUShort xbNtx::InsertKeyOffset	(	xbShort	pos,
		xbNodeLink *	n
	)			[protected]

Short description.

Parameters:

	pos
	n

xbShort xbNtx::JoinSiblings	(	xbNodeLink *	parent,
		xbShort	parentPos,
		xbNodeLink *	n1,
		xbNodeLink *	n2
	)			[protected]

Short description.

Parameters:

	parent
	parentPos
	n1
	n2

xbShort xbNtx::KeyExists

(

xbDouble

d

)

[virtual]

Short description.

Parameters:

d

Implements xbIndex.

xbShort xbNtx::KeyExists

(

char *

Key

)

[inline]

xbShort xbNtx::KeyWasChanged

(

void

)

[virtual]

Short description.

Implements xbIndex.

void xbNtx::ProcessDeleteList

(

void

)

[protected]

Short description.

xbShort xbNtx::PutDbfNo	(	xbShort	RecNo,
		xbNodeLink *	n,
		xbLong	DbfNo
	)			[protected]

Short description.

Parameters:

	RecNo
	n
	DbfNo

xbShort xbNtx::PutHeadNode	(	NtxHeadNode *	Head,
		FILE *	f,
		xbShort	UpdateOnly
	)			[protected]

Short description.

Parameters:

	Head
	f
	UpdateOnly

xbShort xbNtx::PutKeyData	(	xbShort	RecNo,
		xbNodeLink *	n
	)			[protected]

Short description.

Parameters:

	RecNo
	n

xbShort xbNtx::PutKeyInNode	(	xbNodeLink *	n,
		xbShort	pos,
		xbLong	d,
		xbLong	l,
		xbShort	w
	)			[protected]

Short description.

Parameters:

	n
	pos
	d
	l
	w

xbShort xbNtx::PutLeafNode	(	xbLong	l,
		xbNodeLink *	n
	)			[protected]

Short description.

Parameters:

	l
	n

xbShort xbNtx::PutLeftNodeNo	(	xbShort	RecNo,
		xbNodeLink *	n,
		xbLong	NodeNo
	)			[protected]

Short description.

Parameters:

	RecNo
	n
	NodeNo

xbShort xbNtx::ReIndex

(

void(*)(xbLong itemNum, xbLong numItems)

statusFunc = 0

)

[virtual]

Short description.

Parameters:

statusFunc

Implements xbIndex.

void xbNtx::ReleaseNodeMemory	(	xbNodeLink *	n,
		xbBool	doFree = false
	)			[protected]

Short description.

Parameters:

n

xbShort xbNtx::RemoveFromIxList

(

)

[protected]

xbShort xbNtx::RemoveKeyFromNode	(	xbShort	pos,
		xbNodeLink *	n
	)			[protected]

Short description.

Parameters:

	pos
	n

xbShort xbNtx::SplitINode	(	xbNodeLink *	n1,
		xbNodeLink *	n2,
		xbLong
	)			[protected]

Short description.

Parameters:

	n1
	n2

xbShort xbNtx::SplitLeafNode	(	xbNodeLink *	n1,
		xbNodeLink *	n2,
		xbShort	pos,
		xbLong	d
	)			[protected]

Short description.

Parameters:

	n1
	n2
	pos
	d

xbShort xbNtx::TouchIndex

(

void

)

[protected, virtual]

Reimplemented from xbIndex.

xbShort xbNtx::UniqueIndex

(

)

[inline, virtual]

Implements xbIndex.

void xbNtx::UpdateDeleteList

(

xbNodeLink *

n

)

[protected]

Short description.

Parameters:

n

xbShort xbNtx::UpdateParentKey

(

xbNodeLink *

n

)

[protected]

Short description.

Parameters:

n

---

Member Data Documentation

xbNodeLink* xbNtx::CurNode [protected]

xbNodeLink* xbNtx::DeleteChain [protected]

xbNodeLink* xbNtx::FreeNodeChain [protected]

NtxHeadNode xbNtx::HeadNode [protected]

NtxLeafNode xbNtx::LeafNode [protected]

char xbNtx::Node[XB_NTX_NODE_SIZE] [protected]

xbNodeLink* xbNtx::NodeChain [protected]

xbLong xbNtx::NodeLinkCtr [protected]

NtxItem xbNtx::PushItem [protected]

xbLong xbNtx::ReusedNodeLinks [protected]

---

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

• xbntx.h
• xbntx.cpp