Class to support the access to collections of JsonNodes (or JsonElements) More...

#include <Elements.h>

Inheritance diagram for dd4hep::json::Collection_t:

Public Member Functions
	Collection_t (Handle_t node, const char *tag)
	Constructor over JsonElements with a given tag name. More...

	Collection_t (NodeList children)
	Constructor over JsonElements in a node list. More...

Collection_t &	reset ()
	Reset the collection object to restart the iteration. More...

size_t	size () const
	Access the collection size. Avoid this call – sloooow! More...

void	operator++ () const
	Operator to advance the collection (pre increment) More...

void	operator++ (int) const
	Operator to advance the collection (post increment) More...

void	operator-- () const
	Operator to advance the collection (pre decrement) More...

void	operator-- (int) const
	Operator to advance the collection (post decrement) More...

Elt_t	current () const
	Access to current element. More...

void	throw_loop_exception (const std::exception &e) const
	Helper function to throw an exception. More...

template<class T >
void	for_each (T oper) const
	Loop processor using function object. More...

template<class T >
void	for_each (const char *tag_name, T oper) const
	Loop processor using function object. More...

Public Member Functions inherited from dd4hep::json::Handle_t
	Handle_t (Elt_t e=0)
	Initializing constructor. More...

Elt_t	operator-> () const
	Direct access to the JsonElement using the operator-> More...

	operator Elt_t () const
	Direct access to the JsonElement by dereferencing. More...

Elt_t	ptr () const
	Direct access to the JsonElement by function. More...

const char *	rawTag () const
	Unicode text access to the element's tag. More...

const char *	rawText () const
	Unicode text access to the element's text. More...

const char *	rawValue () const
	Unicode text access to the element's value. More...

std::string	tag () const
	Text access to the element's tag. More...

std::string	text () const
	Text access to the element's text. More...

std::string	value () const
	Text access to the element's value. More...

const char *	attr_name (const Attribute attr) const
	Access attribute name (throws exception if not present) More...

const char *	attr_value (const Attribute attr) const
	Access attribute value by the attribute (throws exception if not present) More...

const char *	attr_value (const char *attr) const
	Access attribute value by the attribute's unicode name (throws exception if not present) More...

const char *	attr_value_nothrow (const char *attr) const
	Access attribute value by the attribute's unicode name (no exception thrown if not present) More...

Attribute	attr_ptr (const char *attr) const
	Access attribute pointer by the attribute's unicode name (throws exception if not present) More...

Attribute	attr_nothrow (const char *tag) const
	Access attribute pointer by the attribute's unicode name (no exception thrown if not present) More...

bool	hasAttr (const char *t) const
	Check for the existence of a named attribute. More...

std::vector< Attribute >	attributes () const
	Retrieve a collection of all attributes of this DOM element. More...

template<class T >
T	attr (const Attribute a) const
	Access typed attribute value by the JsonAttr. More...

template<class T >
T	attr (const char *name) const
	Access typed attribute value by its unicode name. More...

bool	hasChild (const char *tag) const
	Check the existence of a child with a given tag name. More...

Handle_t	child (const char *tag, bool throw_exception=true) const
	Access a single child by its tag name (unicode) More...

NodeList	children (const char *tag) const
	Access a group of children identified by the same tag name. More...

size_t	numChildren (const char *tag, bool throw_exception) const
	Access the number of children of this DOM element with a given tag name. More...

template<>
INLINE Attribute	attr (const char *tag_value) const

template<>
INLINE const char *	attr (const char *tag_value) const

template<>
INLINE bool	attr (const char *tag_value) const

template<>
INLINE int	attr (const char *tag_value) const

template<>
INLINE long	attr (const char *tag_value) const

template<>
INLINE float	attr (const char *tag_value) const

template<>
INLINE double	attr (const char *tag_value) const

Public Attributes
NodeList	m_children
	Reference to the list of child nodes. More...

Public Attributes inherited from dd4hep::json::Handle_t
Elt_t	m_node
	The pointer to the JsonElement. More...

Additional Inherited Members
Public Types inherited from dd4hep::json::Handle_t
typedef JsonElement *	Elt_t

Detailed Description

Class to support the access to collections of JsonNodes (or JsonElements)

Author: M.Frank

Version: 1.0

Definition at line 239 of file Elements.h.

Constructor & Destructor Documentation

◆ Collection_t() [1/2]

Collection_t::Collection_t	(	Handle_t	node,
		const char *	tag
	)

Constructor over JsonElements with a given tag name.

Definition at line 382 of file Elements.cpp.

◆ Collection_t() [2/2]

Collection_t::Collection_t ( NodeList children )

Constructor over JsonElements in a node list.

Constructor over XmlElements in a node list.

Definition at line 388 of file Elements.cpp.

Member Function Documentation

◆ current()

Elt_t dd4hep::json::Collection_t::current ( ) const

inline

Access to current element.

Definition at line 260 of file Elements.h.

◆ for_each() [1/2]

template<class T >

void dd4hep::json::Collection_t::for_each	(	const char *	tag_name,
		T	oper
	)		const

inline

Loop processor using function object.

Definition at line 276 of file Elements.h.

◆ for_each() [2/2]

template<class T >

void dd4hep::json::Collection_t::for_each ( T oper ) const

inline

Loop processor using function object.

Definition at line 266 of file Elements.h.

◆ operator++() [1/2]

void Collection_t::operator++ ( ) const

Operator to advance the collection (pre increment)

Definition at line 412 of file Elements.cpp.

◆ operator++() [2/2]

void Collection_t::operator++ ( int ) const

Operator to advance the collection (post increment)

Definition at line 428 of file Elements.cpp.

◆ operator--() [1/2]

void Collection_t::operator-- ( ) const

Operator to advance the collection (pre decrement)

Definition at line 420 of file Elements.cpp.

◆ operator--() [2/2]

void Collection_t::operator-- ( int ) const

Operator to advance the collection (post decrement)

Definition at line 432 of file Elements.cpp.

◆ reset()

Collection_t & Collection_t::reset ( )

Reset the collection object to restart the iteration.

Definition at line 394 of file Elements.cpp.

◆ size()

size_t Collection_t::size ( ) const

Access the collection size. Avoid this call – sloooow!

Definition at line 400 of file Elements.cpp.

◆ throw_loop_exception()

void Collection_t::throw_loop_exception ( const std::exception & e ) const

Helper function to throw an exception.

Definition at line 405 of file Elements.cpp.

Member Data Documentation

◆ m_children

NodeList dd4hep::json::Collection_t::m_children

Reference to the list of child nodes.

Definition at line 242 of file Elements.h.

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

DDCore/include/JSON/Elements.h
DDCore/src/JSON/Elements.cpp

Public Member Functions

Public Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ Collection_t() [1/2]

◆ Collection_t() [2/2]

Member Function Documentation

◆ current()

◆ for_each() [1/2]

◆ for_each() [2/2]

◆ operator++() [1/2]

◆ operator++() [2/2]

◆ operator--() [1/2]

◆ operator--() [2/2]

◆ reset()

◆ size()

◆ throw_loop_exception()

Member Data Documentation

◆ m_children