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TDbCol Class Reference

class TDbCol

Defines a column in a table or rowset.

The data members are public because this is really a structure to group the attributes of the column together.

Three non-default constructors are provided for convenience.

Public Member Functions
	TDbCol()
	TDbCol(const TDbCol &)
	TDbCol(const TDesC &, TDbColType)
	TDbCol(const TDesC &, TDbColType, TInt)
TBool	IsLong(TDbColType)
TDbCol &	operator=(const TDbCol &)

Private Member Functions
	TDbCol(const TDesC &)

Public Member Enumerations
enum	anonymous { ENotNull = 0x01, EAutoIncrement = 0x02 }

Public Attributes
TUint	iAttributes
TInt	iMaxLength
TDbColNameC	iName
TDbColType	iType

Constructor & Destructor Documentation

TDbCol()

TDbCol

(

)

[inline]

Constructs an uninitialised TDbCol. It is necessary because there are also non-default constructors in this class.

TDbCol(const TDbCol &)

TDbCol

(

const TDbCol &

)

[inline]

TDbCol copy constructor.

Parameters

const TDbCol &

This TDbCol object will be constructed as an exact copy of aSrcCol object.

TDbCol(const TDesC &, TDbColType)

IMPORT_C	TDbCol	(	const TDesC &	aName,
			TDbColType	aType
		)

Parameters

const TDesC & aName
TDbColType aType

TDbCol(const TDesC &, TDbColType, TInt)

IMPORT_C	TDbCol	(	const TDesC &	aName,
			TDbColType	aType,
			TInt	aMaxLength
		)

Parameters

const TDesC & aName
TDbColType aType
TInt aMaxLength

TDbCol(const TDesC &)

TDbCol

(

const TDesC &

aName

)

[private, inline]

Parameters

const TDesC & aName

Member Functions Documentation

IsLong(TDbColType)

TBool

IsLong

(

TDbColType

aType

)

[static, inline]

Parameters

TDbColType aType

operator=(const TDbCol &)

TDbCol &

operator=

(

const TDbCol &

)

[inline]

TDbCol "=" operator.

Parameters

const TDbCol &

This TDbCol object will be made to be an exact copy of aSrcCol object.

Member Enumerations Documentation

Enum anonymous

Enumerators

ENotNull = 0x01
EAutoIncrement = 0x02

Member Data Documentation

TUint iAttributes

TUint

iAttributes

A set of flags describing other column attributes. This must be one of the anonymous enum values ENotNull or EAutoIncrement.

TInt iMaxLength

TInt	iMaxLength

The maximum length of data that can be stored in a Text or Binary column.

TDbColNameC iName

TDbColNameC

iName

The column name.

TDbColType iType

TDbColType

iType

The column type.