DOMUserDataHandler Class Reference

When associating an object to a key on a node using setUserData the application can provide a handler that gets called when the node the object is associated to is being cloned or imported. More...

Public Types
Public Constants
enum	DOMOperationType {   NODE_CLONED = 1, NODE_IMPORTED = 2, NODE_DELETED = 3, NODE_RENAMED = 4,   NODE_ADOPTED = 5 }
	Operation Type. More...

Public Member Functions
Destructor
virtual	~DOMUserDataHandler ()
	Destructor. More...
Functions introduced in DOM Level 3
virtual void	handle (DOMOperationType operation, const XMLCh *const key, void *data, const DOMNode *src, DOMNode *dst)=0
	This method is called whenever the node for which this handler is registered is imported or cloned. More...

Protected Member Functions
Hidden constructors
	DOMUserDataHandler ()

Detailed Description

When associating an object to a key on a node using setUserData the application can provide a handler that gets called when the node the object is associated to is being cloned or imported.

This can be used by the application to implement various behaviors regarding the data it associates to the DOM nodes. This interface defines that handler.

See also the Document Object Model (DOM) Level 3 Core Specification.

Since

DOM Level 3

Member Enumeration Documentation

enum DOMUserDataHandler::DOMOperationType

Operation Type.

NODE_CLONED: The node is cloned.

NODE_IMPORTED The node is imported.

NODE_DELETED The node is deleted.

NODE_RENAMED The node is renamed.

NODE_ADOPTED The node is adopted.

Since

DOM Level 3

Enumerator
NODE_CLONED
NODE_IMPORTED
NODE_DELETED
NODE_RENAMED
NODE_ADOPTED

Constructor & Destructor Documentation

DOMUserDataHandler::DOMUserDataHandler ( )

protected

virtual DOMUserDataHandler::~DOMUserDataHandler ( )

virtual

Destructor.

Member Function Documentation

virtual void DOMUserDataHandler::handle ( DOMOperationType  operation, const XMLCh *const  key, void *  data, const DOMNode *  src, DOMNode *  dst  )

pure virtual

This method is called whenever the node for which this handler is registered is imported or cloned.

Parameters

operation	Specifies the type of operation that is being performed on the node.
key	Specifies the key for which this handler is being called.
data	Specifies the data for which this handler is being called.
src	Specifies the node being cloned, adopted, imported, or renamed. This is null when the node is being deleted.
dst	Specifies the node newly created if any, or null.

Since

DOM Level 3

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

• DOMUserDataHandler.hpp