#include <data.h>

Inheritance diagram for isc::data::NullElement:

Public Member Functions
	NullElement (const Position &pos=ZERO_POSITION())

bool	equals (const Element &other) const

void	toJSON (std::ostream &ss) const
	Converts the Element to JSON format and appends it to the given stringstream.

Public Member Functions inherited from isc::data::Element
virtual	~Element ()

const Position &	getPosition () const
	Returns position where the data element's value starts in a configuration string.

types	getType () const

std::string	str () const
	Returns a string representing the Element and all its child elements; note that this is different from stringValue(), which only returns the single value of a StringElement.

std::string	toWire () const
	Returns the wireformat for the Element and all its child elements.

void	toWire (std::ostream &out) const

virtual int64_t	intValue () const

virtual isc::util::int128_t	bigIntValue () const

virtual double	doubleValue () const

virtual bool	boolValue () const

virtual std::string	stringValue () const

virtual const std::vector< ElementPtr > &	listValue () const

virtual const std::map< std::string, ConstElementPtr > &	mapValue () const

virtual bool	getValue (int64_t &t) const

virtual bool	getValue (double &t) const

virtual bool	getValue (bool &t) const

virtual bool	getValue (std::string &t) const

virtual bool	getValue (std::vector< ElementPtr > &t) const

virtual bool	getValue (std::map< std::string, ConstElementPtr > &t) const

virtual bool	setValue (const long long int v)

virtual bool	setValue (const isc::util::int128_t &v)

bool	setValue (const long int i)

bool	setValue (const int i)

virtual bool	setValue (const double v)

virtual bool	setValue (const bool t)

virtual bool	setValue (const std::string &v)

virtual bool	setValue (const std::vector< ElementPtr > &v)

virtual bool	setValue (const std::map< std::string, ConstElementPtr > &v)

virtual ConstElementPtr	get (const int i) const
	Returns the ElementPtr at the given index.

virtual ElementPtr	getNonConst (const int i) const
	returns element as non-const pointer

virtual void	set (const size_t i, ElementPtr element)
	Sets the ElementPtr at the given index.

virtual void	add (ElementPtr element)
	Adds an ElementPtr to the list.

virtual void	remove (const int i)
	Removes the element at the given position.

virtual size_t	size () const
	Returns the number of elements in the list.

virtual bool	empty () const
	Return true if there are no elements in the list.

virtual ConstElementPtr	get (const std::string &name) const
	Returns the ElementPtr at the given key.

virtual void	set (const std::string &name, ConstElementPtr element)
	Sets the ElementPtr at the given key.

virtual void	remove (const std::string &name)
	Remove the ElementPtr at the given key.

virtual bool	contains (const std::string &name) const
	Checks if there is data at the given key.

virtual ConstElementPtr	find (const std::string &identifier) const
	Recursively finds any data at the given identifier.

virtual bool	find (const std::string &identifier, ConstElementPtr &t) const
	See `Element::find()`

void	removeEmptyContainersRecursively ()
	Remove all empty maps and lists from this Element and its descendants.

Additional Inherited Members
Public Types inherited from isc::data::Element
enum	types : int { integer = 0 , real = 1 , boolean = 2 , null = 3 , string = 4 , bigint = 5 , list = 6 , map = 7 , any = 8 }
	The types that an Element can hold. More...

Static Public Member Functions inherited from isc::data::Element
static const Position &	ZERO_POSITION ()
	Returns `Position` object with line_ and pos_ set to 0, and with an empty file name.

static ElementPtr	create (const Position &pos=ZERO_POSITION())

static ElementPtr	create (const long long int i, const Position &pos=ZERO_POSITION())

static ElementPtr	create (const isc::util::int128_t &i, const Position &pos=ZERO_POSITION())

static ElementPtr	create (const int i, const Position &pos=ZERO_POSITION())

static ElementPtr	create (const long int i, const Position &pos=ZERO_POSITION())

static ElementPtr	create (const uint32_t i, const Position &pos=ZERO_POSITION())

static ElementPtr	create (const double d, const Position &pos=ZERO_POSITION())

static ElementPtr	create (const bool b, const Position &pos=ZERO_POSITION())

static ElementPtr	create (const std::string &s, const Position &pos=ZERO_POSITION())

static ElementPtr	create (const char *s, const Position &pos=ZERO_POSITION())

static ElementPtr	createList (const Position &pos=ZERO_POSITION())
	Creates an empty ListElement type ElementPtr.

static ElementPtr	createMap (const Position &pos=ZERO_POSITION())
	Creates an empty MapElement type ElementPtr.

static ElementPtr	fromJSON (const std::string &in, bool preproc=false)
	These functions will parse the given string (JSON) representation of a compound element.

static ElementPtr	fromJSON (std::istream &in, bool preproc=false)
	Creates an Element from the given input stream containing JSON formatted data.

static ElementPtr	fromJSON (std::istream &in, const std::string &file_name, bool preproc=false)
	Creates an Element from the given input stream containing JSON formatted data.

static ElementPtr	fromJSON (std::istream &in, const std::string &file, int &line, int &pos)
	Creates an Element from the given input stream, where we keep track of the location in the stream for error reporting.

static ElementPtr	fromJSONFile (const std::string &file_name, bool preproc=false)
	Reads contents of specified file and interprets it as JSON.

static std::string	typeToName (Element::types type)
	Returns the name of the given type as a string.

static Element::types	nameToType (const std::string &type_name)
	Converts the string to the corresponding type Throws a TypeError if the name is unknown.

static void	preprocess (std::istream &in, std::stringstream &out)
	input text preprocessor

static ElementPtr	fromWire (std::stringstream &in, int length)
	These function pparse the wireformat at the given stringstream (of the given length).

static ElementPtr	fromWire (const std::string &s)
	Creates an Element from the wire format in the given string Since the wire format is JSON, this is the same as fromJSON, and could be removed.

Protected Member Functions inherited from isc::data::Element
	Element (types t, const Position &pos=ZERO_POSITION())
	Constructor.

Detailed Description

Definition at line 701 of file data.h.

Constructor & Destructor Documentation

◆ NullElement()

isc::data::NullElement::NullElement ( const Position & pos = ZERO_POSITION() )

inline

Definition at line 703 of file data.h.

Member Function Documentation

◆ equals()

bool isc::data::NullElement::equals ( const Element & other ) const

virtual

Returns: true if the other ElementPtr has the same value and the same type (or a different and compatible type), false otherwise.

Implements isc::data::Element.

Definition at line 1061 of file data.cc.

References isc::data::Element::null.

◆ toJSON()

void isc::data::NullElement::toJSON ( std::ostream & ss ) const

virtual

Converts the Element to JSON format and appends it to the given stringstream.

Implements isc::data::Element.

Definition at line 869 of file data.cc.

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