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TBtreeFix Class Reference

class TBtreeFix : public TBtreeFixBase

A B-tree for fixed-sized keys and entries.

Entry is the type of entry to store. Key defines how items should be ordered: there must be a member of this type in the Entry class.

Inherits from

TBtreeFix
- TBtreeFixBase
  - TBtree

Public Member Functions
	TBtreeFix ( TBtreeMode )
	TBtreeFix (const TBtreeToken &, TBtreeMode )
Entry	AtL (const TBtreePos &)
Entry	AtL (const TBtreeMark &)
TBool	DeleteL (const Key &)
void	ExtractAtL (const TBtreePos &, Entry &)
void	ExtractAtL (const TBtreeMark &, Entry &)
TBool	FindL ( TBtreePos &, const Key &, TFind )
TBool	InsertL ( TBtreePos &, const Entry &, TAllowDuplicates )

Inherited Functions
	TBtree::ClearL()
	TBtree::Connect(MPagePool ,const MBtreeKey ,const MBtreeLeafOrg ,const MBtreeIndexOrg )
	TBtree::DeleteAtL(TBtreePos &)
	TBtree::DeleteL(const TAny *)
	TBtree::ExtractAtL(const TBtreeMark &,TAny *,TInt)const
	TBtree::ExtractAtL(const TBtreePos &,TAny *,TInt)const
	TBtree::FindL(TBtreePos &,const TAny *,TFind)const
	TBtree::FirstL(TBtreePos &)const
	TBtree::InsertL(TBtreePos &,const TAny *,TInt,TAllowDuplicates)
	TBtree::IsBroken()const
	TBtree::IsDirty()const
	TBtree::IsEmpty()const
	TBtree::IsIntact()const
	TBtree::LastL(TBtreePos &)const
	TBtree::MarkBroken()
	TBtree::MarkCurrent()
	TBtree::MarkDirty()
	TBtree::NextL(TBtreeMark &)const
	TBtree::NextL(TBtreePos &)const
	TBtree::PreviousL(TBtreePos &)const
	TBtree::RepairL()
	TBtree::ResetL(TBtreeMark &)const
	TBtree::Set(const TBtreeToken &,TBtreeMode)
	TBtree::TBtree(TBtreeMode)
	TBtree::TBtree(const TBtreeToken &,TBtreeMode)
	TBtree::Token()const
	TBtreeFixBase::Connect(MPagePool ,const MBtreeKey )
	TBtreeFixBase::ExtractAtL(const TBtreeMark &,TAny *)const
	TBtreeFixBase::ExtractAtL(const TBtreePos &,TAny *)const
	TBtreeFixBase::InsertL(TBtreePos &,const TAny *,TAllowDuplicates)
	TBtreeFixBase::TBtreeFixBase(TBtreeMode,TInt,TInt)
	TBtreeFixBase::TBtreeFixBase(const TBtreeToken &,TBtreeMode,TInt,TInt)

Inherited Enumerations
	TBtree:TFind

Constructor & Destructor Documentation

TBtreeFix(TBtreeMode)

TBtreeFix

(

TBtreeMode

aMode

)

[inline]

Constructor that sets the B-tree mode.

Parameters

TBtreeMode aMode

B-tree operating mode

TBtreeFix(const TBtreeToken &, TBtreeMode)

TBtreeFix	(	const TBtreeToken &	aToken,
		TBtreeMode	aMode
	)	[inline]

Constructor that sets the B-tree mode and initialisation parameters.

Parameters

const TBtreeToken & aToken	Parameters with which to initialise the B-tree
TBtreeMode aMode	B-tree operating mode

Member Functions Documentation

AtL(const TBtreePos &)

Entry

AtL

(

const TBtreePos &

aPos

)

const [inline]

Gets the entry at the specified position.

Parameters

const TBtreePos & aPos

Position of the entry to get

AtL(const TBtreeMark &)

Entry

AtL

(

const TBtreeMark &

aMark

)

const [inline]

Gets the entry at the specified iterator position.

Parameters

const TBtreeMark & aMark

Iterator to use to get the entry

DeleteL(const Key &)

TBool

DeleteL

(

const Key &

aKey

)

[inline]

Delete an entry.

Parameters

const Key & aKey

Key of the entry to delete

ExtractAtL(const TBtreePos &, Entry &)

void	ExtractAtL	(	const TBtreePos &	aPos,
			Entry &	anEntry
		)	const [inline]

Gets the entry at the specified position.

Parameters

const TBtreePos & aPos	Position of the entry to get
Entry & anEntry	On return, the specified entry

ExtractAtL(const TBtreeMark &, Entry &)

void	ExtractAtL	(	const TBtreeMark &	aMark,
			Entry &	anEntry
		)	const [inline]

Gets the entry at the specified iterator position.

Parameters

const TBtreeMark & aMark	Iterator to use to get the entry
Entry & anEntry	On return, the specified entry

FindL(TBtreePos &, const Key &, TFind)

TBool	FindL	(	TBtreePos &	aPos,
			const Key &	aKey,
			TFind	aMode = EEqualTo
		)	const [inline]

Parameters

TBtreePos & aPos
const Key & aKey
TFind aMode = EEqualTo

InsertL(TBtreePos &, const Entry &, TAllowDuplicates)

TBool	InsertL	(	TBtreePos &	aPos,
			const Entry &	anEntry,
			TAllowDuplicates	aDup = ENoDuplicates
		)	[inline]

Inserts an entry into the tree.

Parameters

TBtreePos & aPos	On return, the position of the entry inserted
const Entry & anEntry	Entry to insert
TAllowDuplicates aDup = ENoDuplicates	Flag to indicate whether duplicate entries are allowed in the tree