Class TBtreeToken

class TBtreeToken;

Description

Encapsulates the persistent parameters for a TBtree.

Members

Defined in TBtreeToken:
Clear(), EEmpty, ExternalizeL(), InternalizeL(), IsBroken(), IsEmpty(), IsIntact(), TBtreeToken(), TBtreeToken(), TEmpty, Touch()

inline TBtreeToken();

Description

Default constuctor.

inline TBtreeToken(TEmpty);

Description

Constructor that intialises the TBtreeToken for an empty B-tree.

Parameters

TEmpty

inline void Touch();

Description

Marks the B-tree as broken.

inline TBool IsBroken() const;

Description

Tests if the broken flag has been set on the B-tree.

Return value

TBool True if the B-tree is broken, otherwise false.

inline TBool IsIntact() const;

Description

Tests if the broken flag has not been set on the B-tree .

Return value

TBool True if the B-tree is not broken, otherwise false.

inline TBool IsEmpty() const;

Description

Tests if the B-tree is empty.

Return value

TBool True if the B-tree is empty, otherwise false.

IMPORT_C void ExternalizeL(RWriteStream &aStream) const;

Description

Externalises a TBtreeToken object to a stream.

Parameters

RWriteStream &aStream Stream to which the object should be externalised.

IMPORT_C void InternalizeL(RReadStream &aStream);

Description

Internalises a TBtreeToken object from a stream.

Parameters

RReadStream &aStream Stream from which the object should be internalised.

protected: IMPORT_C void Clear();

Description

TEmpty

Description

Provides a TBtreeToken initialisation flag.

EEmpty