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CObexHeader Class Reference

class CObexHeader : public CBase

Encapsulates an Obex header.

This class provides the ability to hold a header of any of the Obex supported types as a native Symbian OS type.

A header may also have one or more attributes set. These are used by the object which owns the header collection so that it can keep track of which headers should be sent (!(ESuppressed || EDeleted)), which have been sent (ESent), and whether the header should be deleted (EDeleted). Deletion is a special case---any operation on the Object which causes a scan of the headers will trigger deletion of any marked headers. This is required as they are owned by the Object, but can be accessed seperately (including through the creator keeping a pointer to the header).

CObexBaseObject

Inherits from

CObexHeader
- CBase

Public Member Functions
	~CObexHeader ()
IMPORT_C TUint8	AsByte ()
IMPORT_C const TDesC8 &	AsByteSeq ()
IMPORT_C TUint32	AsFourByte ()
IMPORT_C const TDesC16 &	AsUnicode ()
IMPORT_C TUint16	Attributes ()
IMPORT_C CObexHeader *	CopyL ()
IMPORT_C TInt	EncodedSize ()
IMPORT_C TUint8	HI ()
IMPORT_C CObexHeader *	NewL ()
IMPORT_C void	Reset ()
IMPORT_C void	ResetContents ()
IMPORT_C void	Set ( CObexHeader *)
IMPORT_C void	SetAttributes ( TUint16 )
IMPORT_C void	SetByte (const TUint8 , const TUint8 )
IMPORT_C void	SetByteSeqL (const TUint8 , const TDesC8 &)
IMPORT_C void	SetFourByte (const TUint8 , const TUint32 )
IMPORT_C void	SetUnicodeL (const TUint8 , const TDesC16 &)
IMPORT_C THeaderType	Type ()

Private Member Functions
	CObexHeader ()
	CObexHeader (CObexUnderlyingHeader *)
void	ConstructL ()

Inherited Functions
	CBase::CBase()
	CBase::Delete(CBase *)
	CBase::Extension_(TUint,TAny &,TAny )
	CBase::operator new(TUint)
	CBase::operator new(TUint,TAny *)
	CBase::operator new(TUint,TLeave)
	CBase::operator new(TUint,TLeave,TUint)
	CBase::operator new(TUint,TUint)
	CBase::~CBase()

Public Member Enumerations
enum	THeaderAttr { ESuppressed = 0x01, ESent = 0x02, EDeleted = 0x04 }
enum	THeaderType { EUnicode = 0x00, EByteSeq = 0x01, EByte = 0x02, EFourByte = 0x03 }

Private Attributes
CObexUnderlyingHeader *	iHeader

Constructor & Destructor Documentation

CObexHeader()

CObexHeader

(

)

[private]

Standard constructor.

CObexHeaderSet

CObexHeader(CObexUnderlyingHeader *)

CObexHeader

(

CObexUnderlyingHeader *

aHeader

)

[private]

Standard constructor, taking a pointer to an underlying object.

Parameters

CObexUnderlyingHeader * aHeader

~CObexHeader()

~CObexHeader

(

)

[virtual]

Standard destructor.

Member Functions Documentation

AsByte()

IMPORT_C TUint8

AsByte

(

)

const

Returns this header as a byte value.

panic: Obex EHeaderAsBadType Panics builds if header is of incorrect type.

AsByteSeq()

IMPORT_C const TDesC8 &

AsByteSeq

(

)

const

Returns this header as a byte sequence.

panic: Obex EHeaderAsBadType Panics if header is of incorrect type.

AsFourByte()

IMPORT_C TUint32

AsFourByte

(

)

const

Returns this header as a four-byte value.

panic: Obex EHeaderAsBadType Panics if header is of incorrect type.

AsUnicode()

IMPORT_C const TDesC16 &

AsUnicode

(

)

const

Returns this header as an Unicode string.

panic: Obex EHeaderAsBadType Panics in debug builds if header is of incorrect type.

Attributes()

IMPORT_C TUint16

Attributes

(

)

const

Return the attibute set currently in force.

ConstructL()

void

ConstructL

(

)

[private]

Phase two constructor. Create the underlying header object. This is reference counted so ownership passes to itself.

CopyL()

IMPORT_C CObexHeader *

CopyL

(

)

const

Return a pointer to a copy of this object. This must be used instead of merely copying the pointer to the initial CObexHeader object as reference counting is used to keep track of instances of the header. The underlying data is not cloned, so any change to the data pointed to by this pointer could change the underlying data.

EncodedSize()

IMPORT_C TInt

EncodedSize

(

)

const

HI()

IMPORT_C TUint8

(

)

const

Returns the header identifier.

NewL()

IMPORT_C CObexHeader *

NewL

(

)

[static]

Reset()

IMPORT_C void

Reset

(

)

Resets the contents of this header, discarding the underlying data. This is only called by the last instance of the header.

ResetContents()

IMPORT_C void

ResetContents

(

)

Resets and destroys all header attributes.

Set(CObexHeader *)

IMPORT_C void

Set

(

CObexHeader *

aHeader

)

Sets this object to use the same underlying header as the parameter. This performs essentially the same function as the CopyL() function, but does not allocate a new object. The underlying data is not cloned, so any change to the data pointed to by this pointer could change the underlying data.

Parameters

CObexHeader * aHeader

SetAttributes(TUint16)

IMPORT_C void

SetAttributes

(

TUint16

aAttr

)

Sets the attibutes of this header.

Parameters

TUint16 aAttr

SetByte(const TUint8, const TUint8)

IMPORT_C void	SetByte	(	const TUint8	aHI,
			const TUint8	aByte
		)

Sets this header to represent a byte value. Forces header type to be a byte (which may therefore change the HI value).

Parameters

const TUint8 aHI
const TUint8 aByte

SetByteSeqL(const TUint8, const TDesC8 &)

IMPORT_C void	SetByteSeqL	(	const TUint8	aHI,
			const TDesC8 &	aByteSeq
		)

Sets this header to represent a byte sequence. Forces header type to be a byte sequence (which may therefore change the HI value).

Parameters

const TUint8 aHI
const TDesC8 & aByteSeq

SetFourByte(const TUint8, const TUint32)

IMPORT_C void	SetFourByte	(	const TUint8	aHI,
			const TUint32	aFourByte
		)

Sets this header to represent a four-byte value. Forces header type to be a four-byte (which may therefore change the HI value).

Parameters

const TUint8 aHI
const TUint32 aFourByte

SetUnicodeL(const TUint8, const TDesC16 &)

IMPORT_C void	SetUnicodeL	(	const TUint8	aHI,
			const TDesC16 &	aUnicode
		)

Forces header type to be a byte (which may therefore change the HI value).

Parameters

const TUint8 aHI
const TDesC16 & aUnicode

Type()

IMPORT_C THeaderType

Type

(

)

const

Return the type of this header.

Member Enumerations Documentation

Enum THeaderAttr

Enumerators

ESuppressed = 0x01
ESent = 0x02
EDeleted = 0x04

Enum THeaderType

Enumerators

EUnicode = 0x00
EByteSeq = 0x01
EByte = 0x02
EFourByte = 0x03

Member Data Documentation

CObexUnderlyingHeader * iHeader

CObexUnderlyingHeader *

iHeader

[private]