Class TBtreeToken

class TBtreeToken;

Description

Encapsulates the persistent parameters for a TBtree.

Members

Defined in TBtreeToken:

• Clear()
• EEmpty
• ExternalizeL(RWriteStream &)constExternalises a TBtreeToken object to a stream.
• InternalizeL(RReadStream &)Internalises a TBtreeToken object from a stream.
• IsBroken()constTests if the broken flag has been set on the B-tree.
• IsEmpty()constTests if the B-tree is empty.
• IsIntact()constTests if the broken flag has not been set on the B-tree .
• TBtreeToken()Default constuctor.
• TBtreeToken(TEmpty)Constructor that intialises the TBtreeToken for an empty B-tree.
• TEmptyProvides a TBtreeToken initialisation flag.
• Touch()Marks the B-tree as broken.

inline TBtreeToken();

Description

Default constuctor.

inline TBtreeToken(TEmpty);

Description

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

Parameters

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

inline TBool IsIntact() const;

Description

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

Return value

inline TBool IsEmpty() const;

Description

Tests if the B-tree is empty.

Return value

IMPORT_C void ExternalizeL(RWriteStream &aStream) const;

Description

Externalises a TBtreeToken object to a stream.

Parameters

IMPORT_C void InternalizeL(RReadStream &aStream);

Description

Internalises a TBtreeToken object from a stream.

Parameters

protected: IMPORT_C void Clear();

Description

TEmpty

Description

Provides a TBtreeToken initialisation flag.