TBtLeafNode Class Reference

Leaf node of a TBtree.

Definition at line 270 of file TBtree.h.

Public Member Functions
	TBtLeafNode (TBtInnerNode *p, const TObject *obj=0, TBtree *t=0)
	Constructor. More...
	~TBtLeafNode ()
	Destructor. More...
void	Add (const TObject *obj, Int_t idx)
	Add the object OBJ to the leaf node, inserting it at location INDEX in the fItem array. More...
void	Append (TObject *obj)
	Never called from anywhere where it might fill up THIS does NOT handle nofKeys. More...
void	AppendFrom (TBtLeafNode *src, Int_t start, Int_t stop)
	A convenience function, does not worry about the element in the parent, simply moves elements from SRC[start] to SRC[stop] into the current array. More...
void	BalanceWith (TBtLeafNode *n, Int_t idx)
	PITEM is the parent item whose key will change when keys are shifted from one LeafNode to the other. More...
void	BalanceWithLeft (TBtLeafNode *l, Int_t idx)
	THIS has more than LEFTSIB; move some items from THIS to LEFTSIB. More...
void	BalanceWithRight (TBtLeafNode *r, Int_t idx)
	THIS has more than RIGHTSIB; move some items from THIS to RIGHTSIB. More...
Int_t	FindRank (const TObject *obj) const
	WHAT was not in any inner node; it is either here, or it's not in the tree. More...
TBtLeafNode *	FirstLeafNode ()
	Return the first node. More...
TObject *	Found (const TObject *obj, TBtNode **which, Int_t *where)
	WHAT was not in any inner node; it is either here, or it's not in the tree. More...
TObject *	GetKey (Int_t idx)
Int_t	IndexOf (const TObject *obj) const
	Returns a number in the range 0 to MaxIndex(). More...
Int_t	IsAlmostFull () const
Int_t	IsFull () const
Int_t	IsLow () const
TBtLeafNode *	LastLeafNode ()
	return the last node. More...
Int_t	MaxIndex () const
Int_t	MaxPsize () const
void	MergeWithRight (TBtLeafNode *r, Int_t idx)
	Merge. More...
Int_t	NofKeys () const
	Return the number of keys. More...
Int_t	NofKeys (Int_t i) const
	Return the number of keys. More...
TObject *	operator[] (Int_t i) const
Int_t	Psize () const
void	PushLeft (Int_t cnt, TBtLeafNode *l, Int_t parentIndex)
	noFromThis==1 => moves the parent item into the leftsib, and the first item in this's array into the parent item. More...
void	PushRight (Int_t cnt, TBtLeafNode *r, Int_t parentIndex)
	noFromThis==1 => moves the parent item into the rightsib, and the last item in this's array into the parent item. More...
void	Remove (Int_t idx)
	Remove an element. More...
void	RemoveItem (Int_t idx)
void	SetKey (Int_t idx, TObject *obj)
void	ShiftLeft (Int_t cnt)
	Shift. More...
void	Split ()
	This function is called only when THIS is the only descendent of the root node, and THIS needs to be split. More...
void	SplitWith (TBtLeafNode *r, Int_t idx)
	Split. More...
Int_t	Vsize () const
Public Member Functions inherited from TBtNode
	TBtNode (Int_t isleaf, TBtInnerNode *p, TBtree *t=0)
	Create a B-tree node. More...
virtual	~TBtNode ()
	Delete a B-tree node. More...
virtual void	Add (const TObject *obj, Int_t index)=0
virtual Int_t	FindRank (const TObject *obj) const =0
virtual TBtLeafNode *	FirstLeafNode ()=0
virtual TObject *	Found (const TObject *obj, TBtNode **which, Int_t *where)=0
virtual TBtree *	GetParentTree () const
virtual TBtLeafNode *	LastLeafNode ()=0
virtual Int_t	NofKeys () const =0
virtual TObject *	operator[] (Int_t i) const =0
virtual void	Remove (Int_t index)=0
virtual void	Split ()=0

Private Attributes
TObject **	fItem

Friends
class	TBtInnerNode

Additional Inherited Members
Protected Attributes inherited from TBtNode
Int_t	fIsLeaf
Int_t	fLast
TBtInnerNode *	fParent
TBtree *	fTree

#include <TBtree.h>

Inheritance diagram for TBtLeafNode:

Constructor & Destructor Documentation

TBtLeafNode()

TBtLeafNode::TBtLeafNode	(	TBtInnerNode *	p,
		const TObject *	obj = 0,
		TBtree *	t = 0
	)

Constructor.

Definition at line 1363 of file TBtree.cxx.

~TBtLeafNode()

TBtLeafNode::~TBtLeafNode

(

)

Destructor.

Definition at line 1376 of file TBtree.cxx.

Member Function Documentation

Add()

void TBtLeafNode::Add ( const TObject *  obj, Int_t  idx  )

virtual

Add the object OBJ to the leaf node, inserting it at location INDEX in the fItem array.

Implements TBtNode.

Definition at line 1385 of file TBtree.cxx.

Append()

void TBtLeafNode::Append

(

TObject *

obj

)

Never called from anywhere where it might fill up THIS does NOT handle nofKeys.

Definition at line 1442 of file TBtree.cxx.

AppendFrom()

void TBtLeafNode::AppendFrom	(	TBtLeafNode *	src,
		Int_t	start,
		Int_t	stop
	)

A convenience function, does not worry about the element in the parent, simply moves elements from SRC[start] to SRC[stop] into the current array.

This should never create a full node. That is, it is not used anywhere where THIS could possibly be near full. Does NOT handle nofKeys.

Definition at line 1426 of file TBtree.cxx.

BalanceWith()

void TBtLeafNode::BalanceWith	(	TBtLeafNode *	n,
		Int_t	idx
	)

PITEM is the parent item whose key will change when keys are shifted from one LeafNode to the other.

Definition at line 1475 of file TBtree.cxx.

BalanceWithLeft()

void TBtLeafNode::BalanceWithLeft	(	TBtLeafNode *	l,
		Int_t	idx
	)

THIS has more than LEFTSIB; move some items from THIS to LEFTSIB.

Definition at line 1452 of file TBtree.cxx.

BalanceWithRight()

void TBtLeafNode::BalanceWithRight	(	TBtLeafNode *	r,
		Int_t	idx
	)

THIS has more than RIGHTSIB; move some items from THIS to RIGHTSIB.

Definition at line 1463 of file TBtree.cxx.

FindRank()

Int_t TBtLeafNode::FindRank ( const TObject *  obj ) const

virtual

WHAT was not in any inner node; it is either here, or it's not in the tree.

Implements TBtNode.

Definition at line 1487 of file TBtree.cxx.

FirstLeafNode()

TBtLeafNode * TBtLeafNode::FirstLeafNode ( )

virtual

Return the first node.

Implements TBtNode.

Definition at line 1501 of file TBtree.cxx.

Found()

TObject * TBtLeafNode::Found ( const TObject *  obj, TBtNode **  which, Int_t *  where  )

virtual

WHAT was not in any inner node; it is either here, or it's not in the tree.

Implements TBtNode.

Definition at line 1510 of file TBtree.cxx.

GetKey()

TObject * TBtLeafNode::GetKey ( Int_t  idx )

inline

Definition at line 292 of file TBtree.h.

IndexOf()

Int_t TBtLeafNode::IndexOf

(

const TObject *

obj

)

const

Returns a number in the range 0 to MaxIndex().

Definition at line 1533 of file TBtree.cxx.

IsAlmostFull()

Int_t TBtLeafNode::IsAlmostFull ( ) const

inline

Definition at line 320 of file TBtree.h.

IsFull()

Int_t TBtLeafNode::IsFull ( ) const

inline

Definition at line 319 of file TBtree.h.

IsLow()

Int_t TBtLeafNode::IsLow ( ) const

inline

Definition at line 321 of file TBtree.h.

LastLeafNode()

TBtLeafNode * TBtLeafNode::LastLeafNode ( )

virtual

return the last node.

Implements TBtNode.

Definition at line 1546 of file TBtree.cxx.

MaxIndex()

Int_t TBtLeafNode::MaxIndex ( ) const

inline

Definition at line 314 of file TBtree.h.

MaxPsize()

Int_t TBtLeafNode::MaxPsize ( ) const

inline

Definition at line 315 of file TBtree.h.

MergeWithRight()

void TBtLeafNode::MergeWithRight	(	TBtLeafNode *	r,
		Int_t	idx
	)

Merge.

Definition at line 1554 of file TBtree.cxx.

NofKeys() [1/2]

Int_t TBtLeafNode::NofKeys ( ) const

virtual

Return the number of keys.

Implements TBtNode.

Definition at line 1575 of file TBtree.cxx.

NofKeys() [2/2]

Int_t TBtLeafNode::NofKeys

(

Int_t

i

)

const

Return the number of keys.

Definition at line 1567 of file TBtree.cxx.

operator[]()

TObject * TBtLeafNode::operator[] ( Int_t  i ) const

inlinevirtual

Implements TBtNode.

Definition at line 424 of file TBtree.h.

Psize()

Int_t TBtLeafNode::Psize ( ) const

inline

Definition at line 312 of file TBtree.h.

PushLeft()

void TBtLeafNode::PushLeft	(	Int_t	cnt,
		TBtLeafNode *	l,
		Int_t	parentIndex
	)

noFromThis==1 => moves the parent item into the leftsib, and the first item in this's array into the parent item.

Definition at line 1593 of file TBtree.cxx.

PushRight()

void TBtLeafNode::PushRight	(	Int_t	cnt,
		TBtLeafNode *	r,
		Int_t	parentIndex
	)

noFromThis==1 => moves the parent item into the rightsib, and the last item in this's array into the parent item.

Definition at line 1612 of file TBtree.cxx.

Remove()

void TBtLeafNode::Remove ( Int_t  idx )

virtual

Remove an element.

Implements TBtNode.

Definition at line 1656 of file TBtree.cxx.

RemoveItem()

void TBtLeafNode::RemoveItem ( Int_t  idx )

inline

Definition at line 284 of file TBtree.h.

SetKey()

void TBtLeafNode::SetKey ( Int_t  idx, TObject *  obj  )

inline

Definition at line 293 of file TBtree.h.

ShiftLeft()

void TBtLeafNode::ShiftLeft

(

Int_t

cnt

)

Shift.

Definition at line 1679 of file TBtree.cxx.

Split()

void TBtLeafNode::Split ( )

virtual

This function is called only when THIS is the only descendent of the root node, and THIS needs to be split.

Assumes that idx of THIS in Parent is 0.

Implements TBtNode.

Definition at line 1693 of file TBtree.cxx.

SplitWith()

void TBtLeafNode::SplitWith	(	TBtLeafNode *	r,
		Int_t	idx
	)

Split.

Definition at line 1706 of file TBtree.cxx.

Vsize()

Int_t TBtLeafNode::Vsize ( ) const

inline

Definition at line 430 of file TBtree.h.

Friends And Related Function Documentation

TBtInnerNode

friend class TBtInnerNode

friend

Definition at line 272 of file TBtree.h.

Member Data Documentation

fItem

TObject** TBtLeafNode::fItem

private

Definition at line 275 of file TBtree.h.

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

• core/cont/inc/TBtree.h
• core/cont/src/TBtree.cxx