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CMTPTypeServiceObjPropExtnForm Class Reference

class CMTPTypeServiceObjPropExtnForm : public CMTPTypeCompoundBase

Defines the MTP ObjectPropDesc Service Object Property Extension FORM dataset. The dataset is a component element of the ObjectPropDesc dataset. CMTPTypeObjectPropDesc

Inherits from

CMTPTypeServiceObjPropExtnForm
- CMTPTypeCompoundBase
  - CBase

Public Member Functions
	~CMTPTypeServiceObjPropExtnForm()
IMPORT_C MMTPType *	CommitChunkL(TPtr8 &)
IMPORT_C TBool	CommitRequired()
IMPORT_C TInt	FirstWriteChunk(TPtr8 &)
IMPORT_C CMTPTypeServiceObjPropExtnForm *	NewL(const TUint)
IMPORT_C CMTPTypeServiceObjPropExtnForm *	NewL(const TUint, const TMTPTypeGuid, const TUint, const TDesC &, const TUint8, const MMTPType *)
IMPORT_C CMTPTypeServiceObjPropExtnForm *	NewLC(const TUint)
IMPORT_C CMTPTypeServiceObjPropExtnForm *	NewLC(const TUint, const TMTPTypeGuid, const TUint, const TDesC &, const TUint8, const MMTPType *)
IMPORT_C TInt	NextWriteChunk(TPtr8 &)
IMPORT_C TUint	Type()

Private Member Functions
	CMTPTypeServiceObjPropExtnForm(const TUint)
void	ConstructL(const TMTPTypeGuid, const TUint, const TDesC &, const TUint8, const MMTPType *)
const TElementInfo &	ElementInfo(TInt)
TBool	HasFormField(TUint8)
TBool	ReadableElementL(TInt)
TInt	UpdateWriteSequenceErr(TInt)
TBool	WriteableElementL(TInt)

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()
	CMTPTypeCompoundBase::CMTPTypeCompoundBase(TBool,TUint)
	CMTPTypeCompoundBase::ChunkAppendL(const MMTPType &)
	CMTPTypeCompoundBase::ChunkCount()const
	CMTPTypeCompoundBase::ChunkRemove(TUint)
	CMTPTypeCompoundBase::FirstReadChunk(TPtrC8 &)const
	CMTPTypeCompoundBase::GetL(TInt,MMTPType &)const
	CMTPTypeCompoundBase::Int16L(TInt)const
	CMTPTypeCompoundBase::Int32L(TInt)const
	CMTPTypeCompoundBase::Int64L(TInt)const
	CMTPTypeCompoundBase::Int8L(TInt)const
	CMTPTypeCompoundBase::NextReadChunk(TPtrC8 &)const
	CMTPTypeCompoundBase::NextWriteChunk(TPtr8 &,TUint)
	CMTPTypeCompoundBase::Reset()
	CMTPTypeCompoundBase::SetExpectedChunkCount(TUint)
	CMTPTypeCompoundBase::SetInt16L(TInt,TInt16)
	CMTPTypeCompoundBase::SetInt32L(TInt,TInt32)
	CMTPTypeCompoundBase::SetInt64L(TInt,TInt64)
	CMTPTypeCompoundBase::SetInt8L(TInt,TInt8)
	CMTPTypeCompoundBase::SetL(TInt,const MMTPType &)
	CMTPTypeCompoundBase::SetStringL(TInt,const TDesC &)
	CMTPTypeCompoundBase::SetUint16L(TInt,TUint16)
	CMTPTypeCompoundBase::SetUint32L(TInt,TUint32)
	CMTPTypeCompoundBase::SetUint64L(TInt,TUint64)
	CMTPTypeCompoundBase::SetUint8L(TInt,TUint8)
	CMTPTypeCompoundBase::Size()const
	CMTPTypeCompoundBase::StringCharsL(TInt)const
	CMTPTypeCompoundBase::StringNumCharsL(TInt)const
	CMTPTypeCompoundBase::Uint16L(TInt)const
	CMTPTypeCompoundBase::Uint32L(TInt)const
	CMTPTypeCompoundBase::Uint64L(TInt)const
	CMTPTypeCompoundBase::Uint8L(TInt)const
	CMTPTypeCompoundBase::Validate()const
	CMTPTypeCompoundBase::ValidateChunkCount()const
	CMTPTypeCompoundBase::~CMTPTypeCompoundBase()

Public Member Enumerations
enum	TMTPObjectPropDescElement { EPKeyNamespace, EPKeyID, EPropertyName, EFormFlag, EForm, ENumElements }

Private Member Enumerations
enum	TChunkIds { EIdFlat1Chunk, EIdNameChunk, EIdFlat2Chunk, EIdFormChunk, EIdNumChunks }
enum	TWriteSequenceState { EIdle, EFlat1Chunk, ENameChunk, EFlat2Chunk, EFormChunk }

Inherited Enumerations
	CMTPTypeCompoundBase:TReadWriteSequenceState

Private Attributes
const TUint	KFlat1ChunkSize
const TUint	KFlat2ChunkSize
const TUint	KNumChunksWithForm
const TUint	KNumChunksWithoutForm
RMTPTypeCompoundFlatChunk	iChunkFlat1
RMTPTypeCompoundFlatChunk	iChunkFlat2
CMTPTypeObjectPropDesc::RMTPTypeObjectPropDescForm	iChunkForm
CMTPTypeString *	iChunkName
TUint	iDataType
const TFixedArray< TElementInfo, ENumElements >	iElementInfo
const CMTPTypeCompoundBase::TElementInfo	iElementMetaData
TBool	iInitialised
TUint	iWriteSequenceCompletionState
TUint	iWriteSequenceErr
TUint	iWriteSequenceState

Inherited Attributes
	CMTPTypeCompoundBase::KJustInTimeConstruction
	CMTPTypeCompoundBase::KMTPNotApplicable
	CMTPTypeCompoundBase::KVariableChunkCount
	CMTPTypeCompoundBase::iChunks
	CMTPTypeCompoundBase::iWriteChunk

Constructor & Destructor Documentation

CMTPTypeServiceObjPropExtnForm(const TUint)

CMTPTypeServiceObjPropExtnForm

(

const TUint

aDataType

)

[private]

Parameters

const TUint aDataType

~CMTPTypeServiceObjPropExtnForm()

IMPORT_C

~CMTPTypeServiceObjPropExtnForm

(

)

[virtual]

Destructor.

Member Functions Documentation

CommitChunkL(TPtr8 &)

IMPORT_C MMTPType *

CommitChunkL

(

TPtr8 &

aChunk

)

[virtual]

Parameters

TPtr8 & aChunk

CommitRequired()

IMPORT_C TBool

CommitRequired

(

)

const [virtual]

ConstructL(const TMTPTypeGuid, const TUint, const TDesC &, const TUint8, const MMTPType *)

void	ConstructL	(	const TMTPTypeGuid	aPKNamespace,
			const TUint	aPKID,
			const TDesC &	aName,
			const TUint8	aFormFlag,
			const MMTPType *	aForm
		)	[private]

Parameters

const TMTPTypeGuid aPKNamespace
const TUint aPKID
const TDesC & aName
const TUint8 aFormFlag
const MMTPType * aForm

ElementInfo(TInt)

const TElementInfo &

ElementInfo

(

TInt

aElementId

)

const [private, virtual]

Provides the TElementInfo data for the specified element.

Parameters

TInt aElementId

The identifier of the requested element.

FirstWriteChunk(TPtr8 &)

IMPORT_C TInt

FirstWriteChunk

(

TPtr8 &

aChunk

)

[virtual]

Parameters

TPtr8 & aChunk

HasFormField(TUint8)

TBool

HasFormField

(

TUint8

aFormFlag

)

const [private]

Parameters

TUint8 aFormFlag

NewL(const TUint)

IMPORT_C CMTPTypeServiceObjPropExtnForm *

NewL

(

const TUint

aDataType

)

[static]

MTP Service Object Property Extension FORM dataset factory method. This method is used to create an empty MTP Service Object Property Extension FORM of the specified Datatype.

leave: One of the system wide error codes, if unsuccessful.

Parameters

const TUint aDataType

The data type identifier datacode of the object property.

NewL(const TUint, const TMTPTypeGuid, const TUint, const TDesC &, const TUint8, const MMTPType *)

IMPORT_C CMTPTypeServiceObjPropExtnForm *	NewL	(	const TUint	aDataType,
			const TMTPTypeGuid	aPKNamespace,
			const TUint	aPKID,
			const TDesC &	aName,
			const TUint8	aFormFlag,
			const MMTPType *	aForm
		)	[static]

Parameters

const TUint aDataType
const TMTPTypeGuid aPKNamespace
const TUint aPKID
const TDesC & aName
const TUint8 aFormFlag
const MMTPType * aForm

NewLC(const TUint)

IMPORT_C CMTPTypeServiceObjPropExtnForm *

NewLC

(

const TUint

aDataType

)

[static]

MTP DevicePropDesc Service Object Property Extension FORM factory method. This method is used to create an empty MTP Service Object Property Extension FORM of the specified Datatype.

leave: One of the system wide error codes, if unsuccessful.

Parameters

const TUint aDataType

The data type identifier datacode of the the object property.

NewLC(const TUint, const TMTPTypeGuid, const TUint, const TDesC &, const TUint8, const MMTPType *)

IMPORT_C CMTPTypeServiceObjPropExtnForm *	NewLC	(	const TUint	aDataType,
			const TMTPTypeGuid	aPKNamespace,
			const TUint	aPKID,
			const TDesC &	aName,
			const TUint8	aFormFlag,
			const MMTPType *	aForm
		)	[static]

Parameters

const TUint aDataType
const TMTPTypeGuid aPKNamespace
const TUint aPKID
const TDesC & aName
const TUint8 aFormFlag
const MMTPType * aForm

NextWriteChunk(TPtr8 &)

IMPORT_C TInt

NextWriteChunk

(

TPtr8 &

aChunk

)

[virtual]

Parameters

TPtr8 & aChunk

ReadableElementL(TInt)

TBool

ReadableElementL

(

TInt

aElementId

)

const [private, virtual]

Indicates if the specified element can be read from.

Parameters

TInt aElementId

The identifier of the requested element.

Type()

IMPORT_C TUint

Type

(

)

const [virtual]

UpdateWriteSequenceErr(TInt)

TInt

UpdateWriteSequenceErr

(

TInt

aErr

)

[private]

Parameters

TInt aErr

WriteableElementL(TInt)

TBool

WriteableElementL

(

TInt

aElementId

)

const [private, virtual]

Indicates if the specified element can be written to.

Parameters

TInt aElementId

The identifier of the requested element.

Member Enumerations Documentation

Enum TChunkIds

Data chunk identifiers.

Enumerators

EIdFlat1Chunk	The first flat data chunk ID.
EIdNameChunk	The EPropertyName element data chunk ID.
EIdFlat2Chunk	The second flat data chunk ID.
EIdFormChunk	The EForm element data chunk ID.
EIdNumChunks	The number of data chunks.

Enum TMTPObjectPropDescElement

MTP ObjectPropDesc Service Object Property Extension FORM element dataset identifiers.

Enumerators

EPKeyNamespace	Object Property PKeyNamespace.
EPKeyID	Object Property PKeyID
EPropertyName	PropertyName
EFormFlag	Form Flag .
EForm	FORM element. This element depends EFormFlag and is absent if EFormFlag is ENone.
ENumElements	The number of dataset elements.

Enum TWriteSequenceState

The write data stream states.

Enumerators

EIdle	Data stream is inactive.
EFlat1Chunk	Streaming the first flat data chunk.
ENameChunk	Streaming the EDefaultValue data chunk..
EFlat2Chunk	Streaming the second flat data chunk.
EFormChunk	Streaming the EForm data chunk.

Member Data Documentation

const TUint KFlat1ChunkSize

const TUint

KFlat1ChunkSize

[private, static]

const TUint KFlat2ChunkSize

const TUint

KFlat2ChunkSize

[private, static]

The size in bytes of the second flat data chunk.

const TUint KNumChunksWithForm

const TUint

KNumChunksWithForm

[private, static]

The data chunk count of ObjectPropDesc datasets with an EForm of other than ENone.

const TUint KNumChunksWithoutForm

const TUint

KNumChunksWithoutForm

[private, static]

The data chunk count of ObjectPropDesc datasets with an EForm of ENone.

RMTPTypeCompoundFlatChunk iChunkFlat1

RMTPTypeCompoundFlatChunk

iChunkFlat1

[private]

The flat data chunk comprising elements EPKeyNamespace and EPKeyID.

RMTPTypeCompoundFlatChunk iChunkFlat2

RMTPTypeCompoundFlatChunk

iChunkFlat2

[private]

The flat data chunk comprising elements EFormFlag.

CMTPTypeObjectPropDesc::RMTPTypeObjectPropDescForm iChunkForm

CMTPTypeObjectPropDesc::RMTPTypeObjectPropDescForm

iChunkForm

[private]

The EForm element data chunk.

CMTPTypeString * iChunkName

CMTPTypeString *

iChunkName

[private]

The EPropertyName element data chunk.

TUint iDataType

TUint

iDataType

[private]

The property's MTP data type identifier datacode.

const TFixedArray< TElementInfo, ENumElements > iElementInfo

const TFixedArray< TElementInfo, ENumElements >

iElementInfo

[private]

The dataset element metadata table.

const CMTPTypeCompoundBase::TElementInfo iElementMetaData

const CMTPTypeCompoundBase::TElementInfo

iElementMetaData

[private, static]

The dataset element metadata table content.

TBool iInitialised

TBool

iInitialised

[private]

The initialised flag indicating if construction is completeand that read-only elements can no longer be modified.

TUint iWriteSequenceCompletionState

TUint

iWriteSequenceCompletionState

[private]

The write data stream completion state. This will be set to EFlat2Chunk for ObjectPropDesc datasets with an EForm of ENone, otherwise this will be EFormChunk.

TUint iWriteSequenceErr

TUint

iWriteSequenceErr

[private]

The write data stream error state.

TUint iWriteSequenceState

TUint

iWriteSequenceState

[private]

The write data stream state variable.