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CDbColSet Class Reference

class CDbColSet : public CBase

Manages a set of column definitions which describe a table or rowset structure. Column definitions can be added and removed. The set can be iterated over, and ordinals for a column can be looked up.

The class is not intended for user derivation.

Inherits from

CDbColSet
- CBase

Public Member Functions
	CDbColSet()
	~CDbColSet()
IMPORT_C CDbColSet &	AddL(const TDbCol &)
void	Clear()
IMPORT_C const TDbCol *	Col(const TDesC &)
IMPORT_C TDbColNo	ColNo(const TDesC &)
TInt	Count()
IMPORT_C CDbColSet *	NewL()
IMPORT_C CDbColSet *	NewLC()
IMPORT_C void	Remove(const TDesC &)
const TDbCol &	operator[](TDbColNo)

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()

Private Attributes
CArrayPakFlat< TDbCol >	iColumns

Constructor & Destructor Documentation

CDbColSet()

IMPORT_C

CDbColSet

(

)

~CDbColSet()

IMPORT_C

~CDbColSet

(

)

Member Functions Documentation

AddL(const TDbCol &)

IMPORT_C CDbColSet &

AddL

(

const TDbCol &

aCol

)

Parameters

const TDbCol & aCol

Clear()

void

Clear

(

)

[inline]

Removes all of the columns from the column set.

Col(const TDesC &)

IMPORT_C const TDbCol *

Col

(

const TDesC &

aColName

)

const

Parameters

const TDesC & aColName

ColNo(const TDesC &)

IMPORT_C TDbColNo

ColNo

(

const TDesC &

aColName

)

const

Parameters

const TDesC & aColName

Count()

TInt

Count

(

)

const [inline]

Returns the number of column definitions in the set.

Note that using a TDbColSetIter is another way to iterate through the contents of a CDbColSet.

NewL()

IMPORT_C CDbColSet *

NewL

(

)

[static]

NewLC()

IMPORT_C CDbColSet *

NewLC

(

)

[static]

Remove(const TDesC &)

IMPORT_C void

Remove

(

const TDesC &

aColName

)

Parameters

const TDesC & aColName

operator[](TDbColNo)

const TDbCol &

operator[]

(

TDbColNo

aCol

)

const [inline]

Returns a column definition by its ordinal number in the set.

Note that using a TDbColSetIter is another way to iterate through the contents of a CDbColSet.

Parameters

TDbColNo aCol

The ordinal number of the column in the set. Columns in a column set are numbered from 1 to Count(), unlike Symbian OS array classes. Ordinal 0 is reserved to represent the invalid column number KDbNullColNo.

Member Data Documentation

CArrayPakFlat< TDbCol > iColumns

CArrayPakFlat< TDbCol >

iColumns

[private]