oos::json_value Class Reference

Wrapper class for a concrete value. More...

#include <json_value.hpp>

Public Member Functions
	json_value ()
	json_value (const json_value &x)
	json_value (json_type *x)
	json_value (const std::string &x)
	json_value (const char *x)
	json_value (int x)
	json_value (double x)
	json_value (bool x)
json_value &	operator= (const json_value &x)
json_value &	operator= (json_type *x)
json_value &	operator= (const std::string &x)
json_value &	operator= (const char *x)
json_value &	operator= (double x)
json_value &	operator= (bool x)
json_value &	operator[] (const std::string &key)
json_value &	operator[] (size_t index)
const json_value &	operator[] (size_t index) const
void	push_back (const json_value &x)
size_t	size () const
template<class T >
bool	is_type () const
template<class T >
const T *	value_type () const

Static Public Member Functions
static json_value	create (std::istream &in)

Friends
OOS_API std::istream &	operator>> (std::istream &str, json_value &value)
OOS_API std::ostream &	operator<< (std::ostream &str, const json_value &value)

Detailed Description

Wrapper class for a concrete value.

This class is a wrapper class for a concrete value. It holds an object of json_type which implements the concrete type.

Constructor & Destructor Documentation

oos::json_value::json_value

(

)

Default constructor

oos::json_value::json_value

(

const json_value &

x

)

Copy constructor

Parameters

x	Value to copy from.

oos::json_value::json_value

(

json_type *

x

)

Creates a new json_value and initializes it with a concrete json_type.

Parameters

x	A concrete json_type object.

oos::json_value::json_value

(

const std::string &

x

)

Creates a new json_value and initializes it with a string. Internaly an object of type json_string is created.

Parameters

x	The string to initialize from.

oos::json_value::json_value

(

const char *

x

)

Creates a new json_value and initializes it with a string. Internaly an object of type json_string is created.

Parameters

x	The string to initialize from.

oos::json_value::json_value

(

int

x

)

Creates a new json_value and initializes it with a integer. Internaly an object of type json_number is created.

Parameters

x	The integer to initialize from.

oos::json_value::json_value

(

double

x

)

Creates a new json_value and initializes it with a double. Internaly an object of type json_number is created.

Parameters

x	The double to initialize from.

oos::json_value::json_value

(

bool

x

)

Creates a new json_value and initializes it with a boolean. Internaly an object of type json_bool is created.

Parameters

x	The boolean to initialize from.

Member Function Documentation

static json_value oos::json_value::create ( std::istream &  in )

static

Creates a json_value from the given input stream.

Parameters

in	The input stream to read from.

Returns

The newly created json_value.

template<class T >

bool oos::json_value::is_type ( ) const

inline

Return true if the json_value is of concrete type T.

Template Parameters

T	The requested type info

Returns

True if the type matches

json_value& oos::json_value::operator=

(

const json_value &

x

)

Assign from a json_value

Parameters

x	The json_value to assign from.

Returns

The initialized json_value.

json_value& oos::json_value::operator=

(

json_type *

x

)

Assign from a json_type

Parameters

x	The json_type to assign from.

Returns

The initialized json_value.

json_value& oos::json_value::operator=

(

const std::string &

x

)

Assign from a std::string

Parameters

x	The std::string to assign from.

Returns

The initialized json_value.

json_value& oos::json_value::operator=

(

const char *

x

)

Assign from a character array

Parameters

x	The character array to assign from.

Returns

The initialized json_value.

json_value& oos::json_value::operator=

(

double

x

)

Assign from a double value

Parameters

x	The double value to assign from.

Returns

The initialized json_value.

json_value& oos::json_value::operator=

(

bool

x

)

Assign from a boolean value

Parameters

x	The boolean value to assign from.

Returns

The initialized json_value.

json_value& oos::json_value::operator[]

(

const std::string &

key

)

Returns a json_value with the given key. If the concrete type doesn't support this method an exception is thrown.

Parameters

key	The key of the json_value.

Returns

the corresponding json_value.

json_value& oos::json_value::operator[]

(

size_t

index

)

Returns a json_value at the given index. If the concrete type doesn't support this method an exception is thrown.

Parameters

index

The index of the json_value.

Returns

the corresponding json_value.

const json_value& oos::json_value::operator[]

(

size_t

index

)

const

Returns a json_value at the given index. If the concrete type doesn't support this method an exception is thrown.

Parameters

index

The index of the json_value.

Returns

the corresponding json_value.

void oos::json_value::push_back

(

const json_value &

x

)

Adds a json_value to the current value. If the concrete type doesn't support this method an exception is thrown.

Parameters

x	The json_value to add.

size_t oos::json_value::size

(

)

const

Returns the size of the json_value. If the concrete type doesn't support this method an exception is thrown.

Returns

The size of the json_value.

template<class T >

const T* oos::json_value::value_type ( ) const

inline

Returns the concrete value. If the value couldn't be cast to the requested type null is returned.

Template Parameters

The	requested value type.

Returns

The concrete value of json_value.

Friends And Related Function Documentation

OOS_API std::ostream& operator<< ( std::ostream &  str, const json_value &  value  )

friend

Output operator for json_value. Each concrete type overloads a print method, to have it print out correctly.

Parameters

str	The output stream to print on.
value	The json_value to print.

Returns

The modified output stream.

OOS_API std::istream& operator>> ( std::istream &  str, json_value &  value  )

friend

Input operator for a json_value.

Parameters

str	The input stream to read from.
value	The json_value read in.

Returns

The modified input stream.

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

• json/json_value.hpp