kanzi::NodeReference< NodeType > Class Template Reference

Provides functionality for a reference to any attached node that you can access using a relative path. More...

#include <kanzi/core.ui/node/node_reference.hpp>

Inheritance diagram for kanzi::NodeReference< NodeType >:

Public Types
typedef shared_ptr< NodeType >	NodeTypeSharedPtr
typedef weak_ptr< NodeType >	NodeTypeWeakPtr

Public Member Functions
void	attach () override
	Attaches a node reference. More...
void	detach () override
	Detaches a node reference. More...
NodeTypeSharedPtr	get () const
	Returns the referenced node. More...
	NodeReference (Node &baseNode, const PropertyType< string > &propertyType)
	Constructor. More...
void	setUserReference (NodeTypeSharedPtr node)
	Sets the node reference to refer to a node. More...
void	update () override
	Refreshes a node reference. More...
virtual	~NodeReference ()
	Destructor. More...

Additional Inherited Members
Protected Member Functions inherited from kanzi::AbstractNodeReference
	~AbstractNodeReference ()

Detailed Description

template<typename NodeType>
class kanzi::NodeReference< NodeType >

Provides functionality for a reference to any attached node that you can access using a relative path.

Kanzi installs the node reference on a base node. Kanzi then starts the look-up from the path that it retrieves from a property in the base node that you set in the NodeReference function. This path is relative to the base node.

You can override the look-up by assigning user reference node, in which case, Kanzi always returns the assigned node, and does not perform a look-up.

Member Typedef Documentation

NodeTypeSharedPtr

template<typename NodeType>

typedef shared_ptr<NodeType> kanzi::NodeReference< NodeType >::NodeTypeSharedPtr

NodeTypeWeakPtr

template<typename NodeType>

typedef weak_ptr<NodeType> kanzi::NodeReference< NodeType >::NodeTypeWeakPtr

Constructor & Destructor Documentation

NodeReference()

template<typename NodeType>

kanzi::NodeReference< NodeType >::NodeReference ( Node &  baseNode, const PropertyType< string > &  propertyType  )

inlineexplicit

Constructor.

Parameters

baseNode	The node where Kanzi installs the constructed node reference.
propertyType	The property of a baseNode the value of which Kanzi is using to resolve the referenced node.

~NodeReference()

template<typename NodeType>

virtual kanzi::NodeReference< NodeType >::~NodeReference ( )

inlinevirtual

Destructor.

Member Function Documentation

attach()

template<typename NodeType>

void kanzi::NodeReference< NodeType >::attach ( )

inlineoverridevirtual

Attaches a node reference.

Kanzi uses this reference to keep track of the node to which the relative path in the base node points.

Implements kanzi::AbstractNodeReference.

detach()

template<typename NodeType>

void kanzi::NodeReference< NodeType >::detach ( )

inlineoverridevirtual

Detaches a node reference.

When you detach a node reference, Kanzi stops tracking the node to which the relative path in the base node points.

Implements kanzi::AbstractNodeReference.

update()

template<typename NodeType>

void kanzi::NodeReference< NodeType >::update ( )

inlineoverridevirtual

Refreshes a node reference.

Call this function when in the base node the value of the property that sets the relative path changes.

Implements kanzi::AbstractNodeReference.

setUserReference()

template<typename NodeType>

void kanzi::NodeReference< NodeType >::setUserReference ( NodeTypeSharedPtr  node )

inline

Sets the node reference to refer to a node.

This function overrides the resolving referenced node by path. The node reference does not take ownership nor keeps alive the passed node.

Parameters

node	A node to which the reference refers. To reset the reference and use the relative path set in the property of the base node, pass nullptr.

See also

get()

get()

template<typename NodeType>

NodeTypeSharedPtr kanzi::NodeReference< NodeType >::get ( ) const

inline

Returns the referenced node.

Returns

Returns the referenced node referenced by relative path or with the setUserReference function.

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

• kanzi/core.ui/node/node_reference.hpp