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CCommsDbConnectionPrefTableView Class Reference

class CCommsDbConnectionPrefTableView : public CBase

Implements actions on records of the Connection Preferences table, to allow clients to set the preferred order in which connections are attempted.

The class is similiar to CCommsDbTableView , but only allows access to connection preferences as a set and not to individual fields in the table. This prevents inappropriate updates of the records. Like CCommsDbTableView , the class has a group of functions for navigating through the records in the view, and another group for setting fields in the current record.

Clients do not create this type of object, but get an instance through CCommsDatabase::OpenConnectionPrefTableLC() , CCommsDatabase::OpenConnectionPrefTableInRankOrderLC() , or CCommsDatabase::OpenConnectionPrefTableViewOnRankLC() .

In addition to the leave codes documented, all leaving functions can leave with any error returned by DBMS during database manipulation.

CCommDbOverrideSettings::GetConnectionPreferenceOverride() CCommDbOverrideSettings::SetConnectionPreferenceOverride()

Inherits from

CCommsDbConnectionPrefTableView
- CBase

Nested Classes and Structures

Public Member Functions
	~CCommsDbConnectionPrefTableView ()
IMPORT_C void	ChangeConnectionPreferenceRankL ( TUint32 )
IMPORT_C void	DeleteConnectionPreferenceL ()
IMPORT_C TInt	GotoFirstRecord ()
IMPORT_C TInt	GotoNextRecord ()
IMPORT_C TInt	GotoPreviousRecord ()
IMPORT_C void	InsertConnectionPreferenceL (const TCommDbIapConnectionPref &, TBool )
IMPORT_C void	InsertConnectionPreferenceL (const TCommDbIspConnectionPref &, TBool )
CCommsDbConnectionPrefTableView *	NewL ( CCommsDatabase &, TCommDbConnectionDirection , TUint32 )
CCommsDbConnectionPrefTableView *	NewLC ( CCommsDatabase &, const TDbQuery &)
CCommsDbConnectionPrefTableView *	NewLC ( CCommsDatabase &, TCommDbConnectionDirection , TBool )
IMPORT_C void	ReadConnectionPreferenceL ( TCommDbIapConnectionPref &)
IMPORT_C void	ReadConnectionPreferenceL ( TCommDbIspConnectionPref &)
IMPORT_C void	SwapConnectionPreferencesL ( TCommDbConnectionDirection , TUint32 , TUint32 )
IMPORT_C void	UpdateBearerL (const TCommDbIapBearer &, TBool )
IMPORT_C void	UpdateBearerL (const TCommDbIspBearer &, TBool )
IMPORT_C void	UpdateDialogPrefL (const TCommDbDialogPref &)

Protected Member Functions
	CCommsDbConnectionPrefTableView ( CCommsDatabase &)
void	Close ()
TDbColNo	ColNum (const TDesC &)
void	ConstructL (const TDbQuery &)
void	ConstructL ( TCommDbConnectionDirection , TBool )
void	ConstructL ( TCommDbConnectionDirection , TUint32 )
RDbRowSet::TAccess	GetL ()
void	GetUint32L (const TDesC &, TUint32 &)
void	OpenL (const TDbQuery &)

Private Member Functions
void	DoSwapConnectionPreferencesL ( TCommDbConnectionDirection , TUint32 , TUint32 )
void	SetRankL ( TUint32 )

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()

Protected Attributes
CCommsDatabase &	iDb
CCommDbTableExtension *	iTableExt
RDbView	iTableView

Constructor & Destructor Documentation

CCommsDbConnectionPrefTableView(CCommsDatabase &)

CCommsDbConnectionPrefTableView

(

CCommsDatabase &

aDb

)

[protected]

Constructor

Parameters

CCommsDatabase & aDb

reference to the database to use.

~CCommsDbConnectionPrefTableView()

IMPORT_C

~CCommsDbConnectionPrefTableView

(

)

[virtual]

Destructor.

Member Functions Documentation

ChangeConnectionPreferenceRankL(TUint32)

IMPORT_C void

ChangeConnectionPreferenceRankL

(

TUint32

aNewRank

)

Sets the rank field (CONNECT_PREF_RANKING) in the currently selected connection preference record in the view.

Note that if the new rank is not zero, and there is already a record with this rank and the same direction, then the existing record's rank is set to zero. This means that record is not used when the system finds the preferred connections.

leave: KErrAccessDenied The record cannot be updated as it is read-only

leave: KErrNotFound There is no current record in the view

leave: KErrOverflow aNewRank is greater than the maximum allowed

capability: Dependent on table, see the guide page referenced below.

Parameters

TUint32 aNewRank

The new rank for the record.

Close()

void

(

)

[protected]

Closes the rowset and releases any owned resources.

ColNum(const TDesC &)

TDbColNo

ColNum

(

const TDesC &

aColumn

)

const [protected, inline]

Returns the column number of the Column aColumn in the table

Coloumn concept doesn't exist in CommsDat depNot supported from v9.1

Parameters

const TDesC & aColumn

A reference to a descriptor containing the name of a column in the current record.

ConstructL(const TDbQuery &)

void

ConstructL

(

const TDbQuery &

aQuery

)

[protected]

Prepares and evaluates the table view using the SQL query aQuery

This method is deprecated from 9.1 and always returns/leaves with KErrNotSupported instead of describing past operation/parameters.

Parameters

const TDbQuery & aQuery

Query to perform

ConstructL(TCommDbConnectionDirection, TBool)

void	ConstructL	(	TCommDbConnectionDirection	aDirection,
			TBool	aSortRanking
		)	[protected]

Creates RecordSet Container and loads date to it.

Parameters

TCommDbConnectionDirection aDirection
TBool aSortRanking

ConstructL(TCommDbConnectionDirection, TUint32)

void	ConstructL	(	TCommDbConnectionDirection	aDirection,
			TUint32	aRank
		)	[protected]

Prepares and evaluates the table view using params

Parameters

TCommDbConnectionDirection aDirection
TUint32 aRank

DeleteConnectionPreferenceL()

IMPORT_C void

DeleteConnectionPreferenceL

(

)

Deletes the currently selected connection preference record in the view.

capability: Dependent on table, see the guide page referenced below.

DoSwapConnectionPreferencesL(TCommDbConnectionDirection, TUint32, TUint32)

void	DoSwapConnectionPreferencesL	(	TCommDbConnectionDirection	aDirection,
			TUint32	aFirstRank,
			TUint32	aSecondRank
		)	[private]

Swaps the bearer (CONNECT_PREF_BEARER_SET) and the IAP (CONNECT_PREF_IAP) fields between two connection preferences records.

The records to use are specified by their rank (CONNECT_PREF_RANKING) and direction (CONNECTION_PREF_DIRECTION).

Note that the dialogue option is not altered.

leave: KErrAccessDenied The record cannot be updated as it is read-only

leave: KErrArgument There is more than one record with the same ranking as one of the rankings

leave: KErrNotFound A record with one of the rankings does not exist

leave: KErrOverflow One of the rankings is greater than the maximum allowed

capability: Dependent on table, see the guide page referenced below.

Parameters

TCommDbConnectionDirection aDirection	Direction of the connection preferences records
TUint32 aFirstRank	Rank of the first record to swap
TUint32 aSecondRank	Rank of the second record to swap

GetL()

RDbRowSet::TAccess

GetL

(

)

[protected]

Gets the operations that can be performed on the current connection preference record If there isn't an access table at all, then treat the table as updatable.

GetUint32L(const TDesC &, TUint32 &)

void	GetUint32L	(	const TDesC &	aColumnName,
			TUint32 &	aValue
		)	[protected]

Parameters

const TDesC & aColumnName
TUint32 & aValue

GotoFirstRecord()

IMPORT_C TInt

GotoFirstRecord

(

)

Sets the first connection preference record in this view as the current record.

capability: Dependent on table, see the guide page referenced below.

GotoNextRecord()

IMPORT_C TInt

GotoNextRecord

(

)

Sets the next connection preference record in the view as the current record.

capability: Dependent on table, see the guide page referenced below.

GotoPreviousRecord()

IMPORT_C TInt

GotoPreviousRecord

(

)

Sets the previous connection preference record in the view as the current record.

capability: Dependent on table, see the guide page referenced below.

InsertConnectionPreferenceL(const TCommDbIapConnectionPref &, TBool)

IMPORT_C void	InsertConnectionPreferenceL	(	const TCommDbIapConnectionPref &	aPref,
			TBool	aReadOnly = EFalse
		)

Inserts a new IAP connection preference into the connetion preference table. The supplied `aPref` is checked to ensure that the rank and direction do not conflict with existing records. The dialog option, bearer set and IAP are checked for consistancy. Deprecated in 7.0 but re-instated to accommodate 6.1 BC

capability: Dependent on table, see the guide page referenced below.

Parameters

const TCommDbIapConnectionPref & aPref	Settings for the new connection preference.
TBool aReadOnly = EFalse	If ETrue the record is set to be read-only. If left unspecified the default is EFalse.

InsertConnectionPreferenceL(const TCommDbIspConnectionPref &, TBool)

IMPORT_C void	InsertConnectionPreferenceL	(	const TCommDbIspConnectionPref &	aPref,
			TBool	aReadOnly = EFalse
		)

Override version of InsertConnectionPreferenceL for BC purposes. This method is deprecated from 9.1 and always returns/leaves with KErrNotSupported instead of describing past operation/parameters.

Parameters

const TCommDbIspConnectionPref & aPref	Preferences.
TBool aReadOnly = EFalse	Read only?

NewL(CCommsDatabase &, TCommDbConnectionDirection, TUint32)

CCommsDbConnectionPrefTableView *	NewL	(	CCommsDatabase &	aDb,
			TCommDbConnectionDirection	aDirection,
			TUint32	aRank
		)	[static]

Create a view. Usually, however, views are created by calling one of the CCommsDatabase::OpenConnectionPrefTable*LC() functions.

Parameters

CCommsDatabase & aDb	reference to the database to use.
TCommDbConnectionDirection aDirection
TUint32 aRank

NewLC(CCommsDatabase &, const TDbQuery &)

CCommsDbConnectionPrefTableView *	NewLC	(	CCommsDatabase &	aDb,
			const TDbQuery &	aQuery
		)	[static]

CCommsDbConnectionPrefTableView definitions Create a view. Usually, however, views are created by calling one of the CCommsDatabase::OpenConnectionPrefTable*LC() functions.

This method is deprecated from 9.1 and always returns/leaves with KErrNotSupported instead of describing past operation/parameters.

Parameters

CCommsDatabase & aDb	reference to the database to use.
const TDbQuery & aQuery	Query to preform

NewLC(CCommsDatabase &, TCommDbConnectionDirection, TBool)

CCommsDbConnectionPrefTableView *	NewLC	(	CCommsDatabase &	aDb,
			TCommDbConnectionDirection	aDirection,
			TBool	aSortRanking = EFalse
		)	[static]

Create a view. Usually, however, views are created by calling one of the CCommsDatabase::OpenConnectionPrefTable*LC() functions.

Parameters

CCommsDatabase & aDb	reference to the database to use.
TCommDbConnectionDirection aDirection
TBool aSortRanking = EFalse	-> ETrue Sort by ranking, EFalse not sorted

OpenL(const TDbQuery &)

void

OpenL

(

const TDbQuery &

aQuery

)

[protected]

Parameters

const TDbQuery & aQuery

ReadConnectionPreferenceL(TCommDbIapConnectionPref &)

IMPORT_C void

ReadConnectionPreferenceL

(

TCommDbIapConnectionPref &

aPref

)

Gets the IAP connection preferences record currently selected in the view.

leave: KErrNotFound There is no current record in the view

leave: KErrUnknown A field in the connection preference record is null

capability: Dependent on table, see the guide page referenced below.

Parameters

TCommDbIapConnectionPref & aPref

On return, the connection preferences

ReadConnectionPreferenceL(TCommDbIspConnectionPref &)

IMPORT_C void

ReadConnectionPreferenceL

(

TCommDbIspConnectionPref &

aPref

)

in v7.0

Framework left to support BC with v6.1

leave: KErrNotSupported

Parameters

TCommDbIspConnectionPref & aPref

SetRankL(TUint32)

void

SetRankL

(

TUint32

aNewRank

)

[private]

Parameters

TUint32 aNewRank

SwapConnectionPreferencesL(TCommDbConnectionDirection, TUint32, TUint32)

IMPORT_C void	SwapConnectionPreferencesL	(	TCommDbConnectionDirection	aDirection,
			TUint32	aFirstRank,
			TUint32	aSecondRank
		)

Swaps the bearer (CONNECT_PREF_BEARER_SET) and the IAP (CONNECT_PREF_IAP) fields between two connection preferences records.

The records to use are specified by their rank (CONNECT_PREF_RANKING) and direction (CONNECTION_PREF_DIRECTION).

Note that the dialogue option is not altered.

leave: KErrAccessDenied The record cannot be updated as it is read-only

leave: KErrArgument There is more than one record with the same ranking as one of the rankings

leave: KErrNotFound A record with one of the rankings does not exist

leave: KErrOverflow One of the rankings is greater than the maximum allowed

capability: Dependent on table, see the guide page referenced below.

Parameters

TCommDbConnectionDirection aDirection	Direction of the connection preferences records
TUint32 aFirstRank	Rank of the first record to swap
TUint32 aSecondRank	Rank of the second record to swap

UpdateBearerL(const TCommDbIapBearer &, TBool)

IMPORT_C void	UpdateBearerL	(	const TCommDbIapBearer &	aUpdate,
			TBool	aReadOnly = EFalse
		)

Update the bearer set and IAP for the currently selected IAP connection preference record. The dialog option, bearer set and IAP are checked for consistancy. Deprecated in 7.0 but re-instated to accomodate 6.1 BC. Update the bearer set and iap for the currently selected connection preference. The dialog option, bearer set and IAP are checked for consistancy. The function sets the bearer set (CONNECT_PREF_BEARER_SET) and IAP (CONNECT_PREF_IAP) fields. The direction field (CONNECTION_PREF_DIRECTION) cannot be altered after it has been written to the record.

leave: KErrAccessDenied The record cannot be updated as it is read-only; KErrArgument The specified IAP (aPref.iBearer.iIapId) cannot be used, as it does not fall in the bearer set defined by aPref.iBearer.iBearerSet and have the same direction as aPref.iDirection; KErrNotFound There is no current record in the view.

capability: Dependent on table, see the guide page referenced below.

Parameters

const TCommDbIapBearer & aUpdate	Updated settings for the connection preference. Note that all fields need to be set, including any unchanged fields.
TBool aReadOnly = EFalse	If true, the record is set to be read-only. If unspecified, EFalse by default.

UpdateBearerL(const TCommDbIspBearer &, TBool)

IMPORT_C void	UpdateBearerL	(	const TCommDbIspBearer &	aUpdate,
			TBool	aReadOnly = EFalse
		)

Override version of UpdateBearerL for BC purposes. This method is deprecated from 9.1 and always returns/leaves with KErrNotSupported instead of describing past operation/parameters.

Parameters

const TCommDbIspBearer & aUpdate	Update.
TBool aReadOnly = EFalse	Read only?

UpdateDialogPrefL(const TCommDbDialogPref &)

IMPORT_C void

UpdateDialogPrefL

(

const TCommDbDialogPref &

aUpdate

)

Updates the dialog preference field (CONNECT_PREF_DIALOG_PREF) in the currently selected connection preferences IAP record in the view.

leave: KErrAccessDenied The record cannot be updated as it is read-only

leave: KErrNotFound There is no current record in the view

capability: Dependent on table, see the guide page referenced below.

Parameters

const TCommDbDialogPref & aUpdate

New value for the dialog preference field

Member Data Documentation

CCommsDatabase & iDb

CCommsDatabase &

iDb

[protected]

Comms data base that is being viewed.

CCommDbTableExtension * iTableExt

CCommDbTableExtension *

iTableExt

[protected]

RDbView iTableView

RDbView

iTableView

[protected]

DBMS view. Variable not used in shim. Not removed because of BC break