KDbRecordData Class Reference

#include <KDbRecordData.h>

Public Member Functions
	KDbRecordData ()
	KDbRecordData (int numCols)
const QVariant &	at (int i) const
void	clear ()
void	clearValues ()
int	count () const
bool	isEmpty () const
bool	isNull (int i) const
QVariant &	operator[] (int i)
const QVariant &	operator[] (int i) const
void	resize (int numCols)
int	size () const
QList< QVariant >	toList () const
QVariant	value (int i) const
QVariant	value (int i, const QVariant &defaultValue) const

Detailed Description

Structure for storing single record with type information.

Todo

consider forking QVariant to a non-shared Variant class, with type information stored elsewhere.

Variant should have toQVariant() method

look if we can have zero-copy strategy for SQLite and other backends

look if we can use memory allocator for strings, etc.

Definition at line 36 of file KDbRecordData.h.

Constructor & Destructor Documentation

KDbRecordData() [1/2]

KDbRecordData::KDbRecordData ( )

inline

Creates a new empty record.

Definition at line 40 of file KDbRecordData.h.

KDbRecordData() [2/2]

KDbRecordData::KDbRecordData ( int numCols )

inlineexplicit

Creates a new record data with numCols columns. Values are initialized to null.

Definition at line 44 of file KDbRecordData.h.

~KDbRecordData()

KDbRecordData::~KDbRecordData ( )

inline

Definition at line 55 of file KDbRecordData.h.

Member Function Documentation

at()

const QVariant & KDbRecordData::at ( int i ) const

inline

Returns

the value at position i. i must be a valid index. i.e. 0 <= i < size().

See also

value(), operator[]().

Definition at line 72 of file KDbRecordData.h.

clear()

void KDbRecordData::clear

(

)

Clears all columns, the record is set empty.

Definition at line 47 of file KDbRecordData.cpp.

clearValues()

void KDbRecordData::clearValues

(

)

Sets all column values to null, current number of columns is preserved.

Definition at line 74 of file KDbRecordData.cpp.

count()

int KDbRecordData::count ( ) const

inline

Definition at line 67 of file KDbRecordData.h.

isEmpty()

bool KDbRecordData::isEmpty ( ) const

inline

Definition at line 63 of file KDbRecordData.h.

isNull()

bool KDbRecordData::isNull ( int i ) const

inline

Returns

true id value at position i is null. i must be a valid index, i.e. 0 <= i < size().

See also

at(), value().

Definition at line 91 of file KDbRecordData.h.

operator[]() [1/2]

QVariant & KDbRecordData::operator[] ( int i )

inline

Returns

the value at position i as a modifiable reference. i must be a valid index, i.e. 0 <= i < size().

See also

at(), value().

Definition at line 81 of file KDbRecordData.h.

operator[]() [2/2]

const QVariant & KDbRecordData::operator[] ( int i ) const

inline

Overloaded function.

Definition at line 94 of file KDbRecordData.h.

resize()

void KDbRecordData::resize

(

int

numCols

)

Resizes the record to numCols. If numCols differ from size(), new with record with all values set to null is created. If numCols equals size() nothing is performed.

Definition at line 58 of file KDbRecordData.cpp.

size()

int KDbRecordData::size ( ) const

inline

Definition at line 65 of file KDbRecordData.h.

toList()

QList< QVariant > KDbRecordData::toList

(

)

const

Converts this record to QList<QVariant>

Definition at line 82 of file KDbRecordData.cpp.

value() [1/2]

QVariant KDbRecordData::value ( int i ) const

inline

Returns

the value at index position i in the vector. If the index i is out of bounds, the function returns a default-constructed value. If you are certain that i is within bounds, you can use at() or operator[] instead, which is slightly faster.

Definition at line 104 of file KDbRecordData.h.

value() [2/2]

QVariant KDbRecordData::value ( int i, const QVariant & defaultValue ) const

inline

Returns

the value at index position i in the vector. This is an overloaded function. If the index i is out of bounds, the function returns a defaultValue. If you are certain that i is within bounds, you can use at() instead, which is slightly faster.

Definition at line 114 of file KDbRecordData.h.

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The documentation for this class was generated from the following files:

• KDbRecordData.h
• KDbRecordData.cpp