sl3::Value Class Reference

This class models the duck typing sqlite uses. It supports int, real, text, blob and null values. More...

#include <sl3/value.hpp>

Public Member Functions
	Value () noexcept
	Constructor.
	Value (int val) noexcept
	Constructor.
	Value (int64_t val) noexcept
	Constructor.
	Value (std::string val) noexcept
	Constructor.
	Value (const char *val)
	Constructor.
	Value (double val) noexcept
	Constructor.
	Value (Blob val) noexcept
	Constructor.
	~Value () noexcept
	Destructor.
	Value (const Value &) noexcept
	Copy constructor.
	Value (Value &&) noexcept
	Move constructor.
Value &	operator= (const Value &val)
	Assignment.
Value &	operator= (Value &&val)
	Assignment.
Value &	operator= (int val)
	Assignment.
Value &	operator= (const int64_t &val)
	Assignment.
Value &	operator= (const double &val)
	Assignment.
Value &	operator= (const std::string &val)
	Assignment.
Value &	operator= (const Blob &val)
	Assignment.
	operator int () const
	Implicit conversion operator.
	operator int64_t () const
	Implicit conversion operator.
	operator double () const
	Implicit conversion operator.
	operator const std::string & () const
	Implicit conversion operator.
	operator const Blob & () const
	Implicit conversion operator.
const int64_t &	int64 () const
	Access the value.
const double &	real () const
	Access the value.
const std::string &	text () const
	Access the value.
const Blob &	blob () const
	Access the value.
std::string	ejectText ()
	Moves the current value into the return value.
Blob	ejectBlob ()
	Moves the current value into the return value.
void	setNull () noexcept
	Set to NULL.
bool	isNull () const noexcept
	Check Null.
Type	getType () const noexcept
	The Type of the value.
void	swap (Value &other) noexcept
	swap function

Detailed Description

This class models the duck typing sqlite uses. It supports int, real, text, blob and null values.

The class has the current type info availalbe.

Constructor & Destructor Documentation

Value() [1/9]

sl3::Value::Value ( )

noexcept

Constructor.

Creates a Null Value

Value() [2/9]

sl3::Value::Value ( int  val )

explicitnoexcept

Constructor.

This constructor wiht an initialization value

Parameters

val	initial value

Value() [3/9]

sl3::Value::Value ( int64_t  val )

explicitnoexcept

Constructor.

This constructor wiht an initialization value

Parameters

val	initial value

Value() [4/9]

sl3::Value::Value ( std::string  val )

explicitnoexcept

Constructor.

This constructor wiht an initialization value

Parameters

val	initial value

Value() [5/9]

sl3::Value::Value ( const char *  val )

explicit

Constructor.

This constructor wiht an initialization value

Parameters

val	initial value

Value() [6/9]

sl3::Value::Value ( double  val )

explicitnoexcept

Constructor.

This constructor wiht an initialization value

Parameters

val	initial value

Value() [7/9]

sl3::Value::Value ( Blob  val )

explicitnoexcept

Constructor.

This constructor wiht an initialization value

Parameters

val	initial value

~Value()

sl3::Value::~Value ( )

noexcept

Destructor.

Value() [8/9]

sl3::Value::Value ( const Value &  )

noexcept

Copy constructor.

Value() [9/9]

sl3::Value::Value ( Value &&  )

noexcept

Move constructor.

Member Function Documentation

blob()

const Blob & sl3::Value::blob

(

)

const

Access the value.

Exceptions

sl3::ErrNullValueAccess	if value is null.
sl3::ErrTypeMisMatch	if the current value has a different type.

Returns

reference to the value

ejectBlob()

Blob sl3::Value::ejectBlob

(

)

Moves the current value into the return value.

After calling this function the value will be Null.

Exceptions

sl3::ErrTypeMisMatch

in case of wrong type.

Returns

The value

ejectText()

std::string sl3::Value::ejectText

(

)

Moves the current value into the return value.

After calling this function the value will be Null.

Exceptions

sl3::ErrTypeMisMatch

in case of wrong type.

Returns

The value

getType()

Type sl3::Value::getType ( ) const

noexcept

The Type of the value.

Returns

the type

int64()

const int64_t & sl3::Value::int64

(

)

const

Access the value.

Exceptions

sl3::ErrNullValueAccess	if value is null.
sl3::ErrTypeMisMatch	if the current value has a different type.

Returns

reference to the value

isNull()

bool sl3::Value::isNull ( ) const

noexcept

Check Null.

Returns

if the value is null

operator const Blob &()

sl3::Value::operator const Blob & ( ) const

explicit

Implicit conversion operator.

Exceptions

sl3::ErrNullValueAccess	if value is null.
sl3::ErrTypeMisMatch	if getType is incompatible

Returns

the value

operator const std::string &()

sl3::Value::operator const std::string & ( ) const

explicit

Implicit conversion operator.

Exceptions

sl3::ErrNullValueAccess	if value is null.
sl3::ErrTypeMisMatch	if getType is incompatible

Returns

the value

operator double()

sl3::Value::operator double ( ) const

explicit

Implicit conversion operator.

Exceptions

sl3::ErrNullValueAccess	if value is null.
sl3::ErrTypeMisMatch	if getType is incompatible
sl3::ErrOutOfRange	is the stored value is an int64_t and out of the min or max double range.

Returns

the value

operator int()

sl3::Value::operator int ( ) const

explicit

Implicit conversion operator.

Exceptions

sl3::ErrNullValueAccess	if value is null.
sl3::ErrTypeMisMatch	if getType is incompatible
sl3::ErrOutOfRange	is the stored value is an int64_t

Returns

the value

operator int64_t()

sl3::Value::operator int64_t ( ) const

explicit

Implicit conversion operator.

Exceptions

sl3::ErrNullValueAccess	if value is null.
sl3::ErrTypeMisMatch	if getType is incompatible

Returns

the value

operator=() [1/7]

Value & sl3::Value::operator=

(

const Blob &

val

)

Assignment.

Exceptions

sl3::ErrTypeMisMatch

if getType is incompatible

Note

, only value assignment happens here, the type does not change, the storage type might change in case of type is a variant.

Parameters

val

new value

Returns

reference to this

operator=() [2/7]

Value & sl3::Value::operator=

(

const double &

val

)

Assignment.

Exceptions

sl3::ErrTypeMisMatch

if getType is incompatible

Note

, only value assignment happens here, the type does not change, the storage type might change in case of type is a variant.

Parameters

val

new value

Returns

reference to this

operator=() [3/7]

Value & sl3::Value::operator=

(

const int64_t &

val

)

Assignment.

Exceptions

sl3::ErrTypeMisMatch

if getType is incompatible

Note

, only value assignment happens here, the type does not change, the storage type might change in case of type is a variant.

Parameters

val

new value

Returns

reference to this

operator=() [4/7]

Value & sl3::Value::operator=

(

const std::string &

val

)

Assignment.

Exceptions

sl3::ErrTypeMisMatch

if getType is incompatible

Note

, only value assignment happens here, the type does not change, the storage type might change in case of type is a variant.

Parameters

val

new value

Returns

reference to this

operator=() [5/7]

Value & sl3::Value::operator=

(

const Value &

val

)

Assignment.

Exceptions

sl3::ErrTypeMisMatch

if getType is incompatible

Note

, only value assignment happens here, the type does not change, the storage type might change in case of type is a variant.

Parameters

val

new value

Returns

reference to this

operator=() [6/7]

Value & sl3::Value::operator=

(

int

val

)

Assignment.

Exceptions

sl3::ErrTypeMisMatch

if getType is incompatible

Note

, only value assignment happens here, the type does not change, the storage type might change in case of type is a variant.

Parameters

val

new value

Returns

reference to this

operator=() [7/7]

Value & sl3::Value::operator=

(

Value &&

val

)

Assignment.

Exceptions

sl3::ErrTypeMisMatch

if getType is incompatible

Note

, only value assignment happens here, the type does not change, the storage type might change in case of type is a variant.

Parameters

val

new value

Returns

reference to this

real()

const double & sl3::Value::real

(

)

const

Access the value.

Exceptions

sl3::ErrNullValueAccess	if value is null.
sl3::ErrTypeMisMatch	if the current value has a different type.

Returns

reference to the value

setNull()

void sl3::Value::setNull ( )

noexcept

Set to NULL.

swap()

void sl3::Value::swap ( Value &  other )

noexcept

swap function

Independent of the type, a Value is always swapable.

Parameters

other

value to swap with

text()

const std::string & sl3::Value::text

(

)

const

Access the value.

Exceptions

sl3::ErrNullValueAccess	if value is null.
sl3::ErrTypeMisMatch	if the current value has a different type.

Returns

reference to the value

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

• include/sl3/value.hpp