CommsDat::CMDBElement Class Reference

#include <metadatabase.h>

class CommsDat::CMDBElement : public CBase, public CommsDat::MMetaDatabase, public CBase, public CommsDat::MMetaDatabase

Inherits from

CommsDat::CMDBElement

Public Attributes
const Meta::SVDataTableEntry	iVDataTable

Protected Attributes
TMDBElementId	iElementId
TAny *	iValue

Public Member Functions
	CMDBElement()
	CMDBElement(TMDBElementId)
	~CMDBElement()
IMPORT_C TMDBAttributeFlags	Attributes()
IMPORT_C void	ClearAttributes(TMDBAttributeFlags)
TMDBElementId *	Data()
IMPORT_C TMDBElementId	ElementId()
virtual IMPORT_C TUint8 *	GetAttribPtr(const TInt)
virtual IMPORT_C Meta::SVDataTableEntry const *	GetVDataTable()
IMPORT_C Meta::SVDataTableEntry const *	GetVDataTableStatic()
IMPORT_C TBool	IsNull()
IMPORT_C TBool	IsSetAttribute(TMDBAttributeFlags)
IMPORT_C TInt	RecordId()
IMPORT_C void	SetAttributes(TMDBAttributeFlags)
IMPORT_C void	SetElementId(TMDBElementId)
IMPORT_C void	SetRecordId(TInt)
IMPORT_C void	SetTypeId(TMDBElementId)
IMPORT_C TMDBElementId	TableId()
pure virtual TCDFieldValueTypes	Type()
IMPORT_C TMDBElementId	TypeId()

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()
	CommsDat::MMetaDatabase::CancelNotification(CMDBSession &,TRequestStatus &)
	CommsDat::MMetaDatabase::DeleteL(CMDBSession &)
	CommsDat::MMetaDatabase::FindL(CMDBSession &)
	CommsDat::MMetaDatabase::LoadL(CMDBSession &)
	CommsDat::MMetaDatabase::MMetaDatabase()
	CommsDat::MMetaDatabase::ModifyL(CMDBSession &)
	CommsDat::MMetaDatabase::RefreshL(CMDBSession &)
	CommsDat::MMetaDatabase::RequestNotification(CMDBSession &,TRequestStatus &)
	CommsDat::MMetaDatabase::StoreL(CMDBSession &)
	CommsDat::MMetaDatabase::~MMetaDatabase()

Detailed Description

Every item stored in the database is represented as a CMDBElement This class contains the id and attributes of every item in the database and for individual fields it also contains the value.

Member Attribute Documentation

iElementId

TMDBElementId

iElementId

[protected]

iVDataTable

const Meta::SVDataTableEntry

iVDataTable

[static]

iValue

TAny *

iValue

[protected]

Constructor & Destructor Documentation

CMDBElement ( )

IMPORT_C

CMDBElement

(

)

Default Constructor

CMDBElement ( TMDBElementId )

IMPORT_C

CMDBElement

(

TMDBElementId

aElementId

)

Constructor

~CMDBElement ( )

IMPORT_C

~CMDBElement

(

)

Destructor

Member Function Documentation

Attributes ( )

IMPORT_C TMDBAttributeFlags

Attributes

(

)

const

Returns the Attributes of an object of this type.

Attributes express database access rights for the data of this element

ClearAttributes ( TMDBAttributeFlags )

IMPORT_C void

ClearAttributes

(

TMDBAttributeFlags

aAttributes

)

Clears one or more attributes

Data ( )

TMDBElementId *

Data

(

)

[inline]

ElementId ( )

IMPORT_C TMDBElementId

ElementId

(

)

const

Returns the ElementId of an object of this type.

The TypeId is

This identifies the meaning of the field in the database schema It also identifies the type of the data stored in this element and the instance of the type

GetAttribPtr ( const TInt )

IMPORT_C TUint8 *

GetAttribPtr

(

const TInt

aOffset

)

const [virtual]

Reimplemented from Meta::MMetaData::GetAttribPtr(const TInt)const

GetVDataTable ( )

IMPORT_C Meta::SVDataTableEntry const *

GetVDataTable

(

)

const [virtual]

Reimplemented from Meta::MMetaData::GetVDataTable()const

GetVDataTableStatic ( )

IMPORT_C Meta::SVDataTableEntry const *

GetVDataTableStatic

(

)

[static]

IsNull ( )

IMPORT_C TBool

IsNull

(

)

const

Queries the state of the field value

Returns ETrue if the value of the element is not set Returns EFalse if the element contains a value

IsSetAttribute ( TMDBAttributeFlags )

IMPORT_C TBool

IsSetAttribute

(

TMDBAttributeFlags

aAttributes

)

const

Queries the attributes

Returns ETrue if all queried attributes are set Returns EFalse if any queried attribute is not set.

RecordId ( )

IMPORT_C TInt

RecordId

(

)

const

Returns the RecordId of an object of this type.

The RecordId is part of the ElementId <x><x><RecordId>

It identifies a particular instance of this type of Element in the database

SetAttributes ( TMDBAttributeFlags )

IMPORT_C void

SetAttributes

(

TMDBAttributeFlags

aAttributes

)

Sets one or more attributes

SetElementId ( TMDBElementId )

IMPORT_C void

SetElementId

(

TMDBElementId

aElementId

)

Sets the ElementId

SetRecordId ( TInt )

IMPORT_C void

SetRecordId

(

TInt

aRecordId

)

Sets the RecordId

SetTypeId ( TMDBElementId )

IMPORT_C void

SetTypeId

(

TMDBElementId

aElementId

)

Sets the TypeId

TableId ( )

IMPORT_C TMDBElementId

TableId

(

)

const

Returns the TableId of an object of this type.

The TableId is part of the ElementId

It identifies the table in the database that holds the data contained in this element

Type ( )

TCDFieldValueTypes

Type

(

)

[pure virtual]

Queries the type of the field value

Returns the enumeration TCDFieldValueTypes that represents the value that can be stored in this element

TypeId ( )

IMPORT_C TMDBElementId

TypeId

(

)

const

Returns the TypeId of an object of this type.

The TypeId is

This identifies the meaning of the data in this element in the database schema It also identifies the type of the data contained in this element

For an element that is a Table or a Record, the ColumnId field will be set to

KCDMaxColumnId