Class to hold a collection of JSON key:value pairs. More...

#include <JsonKVMap.h>

Inheritance diagram for casacore::JsonKVMap:

Public Types
typedef std::map< String, JsonValue >::const_iterator	const_iterator
	Define the iterator types. More...

typedef std::map< String, JsonValue >::iterator	iterator

Public Member Functions
	JsonKVMap ()
	Construct an empty map. More...

	JsonKVMap (const JsonKVMap &that)
	Copy constructor (copy semantics) More...

	~JsonKVMap ()

JsonKVMap &	operator= (const JsonKVMap &that)
	Assignment (copy semantics) More...

Bool	isDefined (const String &name) const
	Is a key defined? More...

const JsonValue &	get (const String &name) const
	Get the value of a key. More...

Get the typed value of a key
Use the default if not existing.
Bool	getBool (const String &name, Bool defVal) const

Int64	getInt (const String &name, Int64 defVal) const

double	getDouble (const String &name, double defVal) const

DComplex	getDComplex (const String &name, const DComplex &defVal) const

const String &	getString (const String &name, const String &defVal) const

Record	toRecord () const
	Convert the map to a Record. More...

Show the contents of the object
void	show (ostream &) const

ostream &	operator<< (ostream &, const JsonKVMap &)

Detailed Description

Class to hold a collection of JSON key:value pairs.

Intended use:

Public interface

Review Status

Test programs:: tJsonKVMap

Synopsis

A JsonKVMap object is the result of a JSON file parsed by JsonParser. It is a map of name to a JsonValue object holding an arbitrary value (including a JsonKVMap for nested structs).

JsonKVMap has functions to test if a given field is present and to get its JsonValue. It also has functions to get a scalar value where a default value is used if the key is undefined.

JsonKVMap is derived from std::map, so all its functions are available. Iterators make standard iteration possible.

Motivation

JSON is a commonly used interchange format.

Definition at line 72 of file JsonKVMap.h.

Member Typedef Documentation

typedef std::map<String,JsonValue>::const_iterator casacore::JsonKVMap::const_iterator

Define the iterator types.

Definition at line 76 of file JsonKVMap.h.

typedef std::map<String,JsonValue>::iterator casacore::JsonKVMap::iterator

Definition at line 77 of file JsonKVMap.h.

Constructor & Destructor Documentation

casacore::JsonKVMap::JsonKVMap ( )

Construct an empty map.

casacore::JsonKVMap::JsonKVMap ( const JsonKVMap & that )

Copy constructor (copy semantics)

casacore::JsonKVMap::~JsonKVMap ( )

Member Function Documentation

const JsonValue& casacore::JsonKVMap::get ( const String & name ) const

Get the value of a key.

An exception is thrown if undefined.

Bool casacore::JsonKVMap::getBool	(	const String &	name,
		Bool	defVal
	)		const

DComplex casacore::JsonKVMap::getDComplex	(	const String &	name,
		const DComplex &	defVal
	)		const

double casacore::JsonKVMap::getDouble	(	const String &	name,
		double	defVal
	)		const

Int64 casacore::JsonKVMap::getInt	(	const String &	name,
		Int64	defVal
	)		const

const String& casacore::JsonKVMap::getString	(	const String &	name,
		const String &	defVal
	)		const

Bool casacore::JsonKVMap::isDefined ( const String & name ) const

inline

Is a key defined?

Definition at line 91 of file JsonKVMap.h.

JsonKVMap& casacore::JsonKVMap::operator= ( const JsonKVMap & that )

Assignment (copy semantics)

void casacore::JsonKVMap::show ( ostream & ) const

Record casacore::JsonKVMap::toRecord ( ) const

Convert the map to a Record.

Friends And Related Function Documentation

ostream& operator<<	(	ostream &	,
		const JsonKVMap &
	)

friend

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

casa/Json/JsonKVMap.h

Public Types

Public Member Functions

Show the contents of the object