iolink::MetadataNode Class Reference

Class which represents one node from a metadata tree. More...

#include <iolink/metadata/MetadataNode.h>

Public Member Functions
	MetadataNode (const std::string &key, std::shared_ptr< VariantDataValue > value)
	Constructor which takes a mandatory key, and an optional value.
	MetadataNode (const MetadataNode &other)
MetadataNode &	operator= (const MetadataNode &other)
	MetadataNode (MetadataNode &&other) noexcept
MetadataNode &	operator= (MetadataNode &&other) noexcept
std::shared_ptr< MetadataNode >	clone () const
	Method to clone the current node.
const std::string &	key () const
	Accessor to the key of the current node.
std::shared_ptr< VariantDataValue >	value () const
	Accessor to the value of the current node.
size_t	childCount () const
	Return the children's count of this node.
bool	hasChild (const std::string &key) const
	Indicate if a child identified by its key is present or not.
std::shared_ptr< const MetadataNode >	child (const std::string &key) const
	Return the child node with the given key.
std::shared_ptr< MetadataNode >	child (const std::string &key)
	Return the child node with the given key.
void	addChild (std::shared_ptr< MetadataNode > child)
	Add a node as child.
void	removeChild (const std::string &key)
	Remove child identified by its key.
MetadataNodeIterator	begin ()
	Return iterator on first child.
MetadataNodeIterator	end ()
	Return iterator which indicates the end of children list.
ConstMetadataNodeIterator	begin () const
	Return iterator on first child.
ConstMetadataNodeIterator	end () const
	Return iterator which indicates the end of children list.
ConstMetadataNodeIterator	cbegin () const
	Return const iterator on first child.
ConstMetadataNodeIterator	cend () const
	Return const iterator which indicates the end of children list.
std::string	toString () const
	Return a string representation.

Detailed Description

Class which represents one node from a metadata tree.

Each node contains a key and also an associated value (optional). It also contains a list of nodes which represents its children in the tree. Children can be parsed using '(Const)MetadataNodeIterator' objects provided by '(c)begin' and '(c)end' methods, or directly can be retrieved thanks to 'child' accessor method.

Constructor & Destructor Documentation

MetadataNode()

iolink::MetadataNode::MetadataNode	(	const std::string &	key,
		std::shared_ptr< VariantDataValue >	value
	)

Constructor which takes a mandatory key, and an optional value.

Parameters

key	string which identifies the node
value	VariantDataValue object associated to the key (or null)

Member Function Documentation

addChild()

void iolink::MetadataNode::addChild

(

std::shared_ptr< MetadataNode >

child

)

Add a node as child.

If the given child key already exists in the current node, existing child is replaced by new one

Parameters

child

node to add as child to the current node

child() [1/2]

std::shared_ptr< MetadataNode > iolink::MetadataNode::child

(

const std::string &

key

)

Return the child node with the given key.

Parameters

key	the key corresponding to one of the children of current node

Returns

the child corresponding to given key

Exceptions

Error

If the key is not found in the children of the current node

child() [2/2]

std::shared_ptr< const MetadataNode > iolink::MetadataNode::child

(

const std::string &

key

)

const

Return the child node with the given key.

Parameters

key	the key corresponding to one of the children of current node

Returns

the child corresponding to given key

Exceptions

Error

If the key is not found in the children of the current node

clone()

std::shared_ptr< MetadataNode > iolink::MetadataNode::clone

(

)

const

Method to clone the current node.

Returns

the new node

hasChild()

bool iolink::MetadataNode::hasChild

(

const std::string &

key

)

const

Indicate if a child identified by its key is present or not.

Parameters

key	the key corresponding to a child or not of current node

Returns

If the node has a child with given key

key()

const std::string & iolink::MetadataNode::key

(

)

const

Accessor to the key of the current node.

Returns

the current node key

removeChild()

void iolink::MetadataNode::removeChild

(

const std::string &

key

)

Remove child identified by its key.

Parameters

key	Key whose node must be removed

value()

std::shared_ptr< VariantDataValue > iolink::MetadataNode::value

(

)

const

Accessor to the value of the current node.

Returns

the current node value

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

• iolink/public/include/iolink/metadata/MetadataNode.h