XNull Class Reference

Inheritance diagram for XNull:

Public Types
typedef XObject	ParentType
Public Types inherited from XObject
enum	eObjectType {   eTypeNull = 0, eTypeUnknown = 1, eTypeBoolean = 2, eTypeNumber = 3,   eTypeString = 4, eTypeNodeSet = 5, eTypeResultTreeFrag = 6, eTypeUserDefined = 7,   eTypeStringReference = 8, eTypeStringAdapter = 9, eTypeStringCached = 10, eTypeXTokenNumberAdapter = 11,   eTypeXTokenStringAdapter = 12, eTypeNodeSetNodeProxy = 13, eUnknown }
	Enumeration of possible object types. More...
typedef void(FormatterListener::*	MemberFunctionPtr )(const XMLCh *const, const unsigned int)

Public Member Functions
	XNull ()
	Create an XNull. More...
	XNull (const XNull &source)
	Create an XNull from another. More...
virtual	~XNull ()
virtual const XalanDOMString &	getTypeString () const
	Given a request type, return the equivalent string. More...
virtual double	num () const
	Cast result object to a number. More...
virtual bool	boolean () const
	Cast result object to a boolean. More...
virtual const XalanDOMString &	str () const
	Cast result object to a string. More...
virtual void	str (FormatterListener &formatterListener, MemberFunctionPtr function) const
	Send the string value to a FormatterListener instance. More...
virtual double	stringLength () const
	Get the length of the string value of the instance. More...
virtual void	ProcessXObjectTypeCallback (XObjectTypeCallback &theCallbackObject)
	Process a callback request for preferred type information. More...
virtual void	ProcessXObjectTypeCallback (XObjectTypeCallback &theCallbackObject) const
	Process a callback request for preferred type information. More...
Public Member Functions inherited from XObject
	XObject (eObjectType theObjectType)
	Create an XObject. More...
	XObject (const XObject &source)
virtual void	str (XalanDOMString &theBuffer) const
	Append the string value directly a string. More...
virtual const XalanDocumentFragment &	rtree () const
	Cast result object to a result tree fragment. More...
virtual const NodeRefListBase &	nodeset () const
	Cast result object to a nodelist. More...
bool	equals (const XObject &theRHS, XPathExecutionContext &executionContext) const
	Tell if two objects are functionally equal. More...
bool	notEquals (const XObject &theRHS, XPathExecutionContext &executionContext) const
	Tell if two objects are functionally not equal. More...
bool	lessThan (const XObject &theRHS, XPathExecutionContext &executionContext) const
	Tell if one object is less than the other. More...
bool	lessThanOrEquals (const XObject &theRHS, XPathExecutionContext &executionContext) const
	Tell if one object is less than or equal the other. More...
bool	greaterThan (const XObject &theRHS, XPathExecutionContext &executionContext) const
	Tell if one object is greater than the other. More...
bool	greaterThanOrEquals (const XObject &theRHS, XPathExecutionContext &executionContext) const
	Tell if one object is greater than or equal the other. More...
eObjectType	getType () const
	Tell what kind of class this is. More...
void	setFactory (XObjectFactory *theFactory)

Static Public Member Functions
static void	initialize ()
	Perform static initialization. More...
static void	terminate ()
	Perform static shut down. More...
Static Public Member Functions inherited from XObject
static void	initialize (MemoryManagerType &theManager)
	Perform static initialization. More...
static void	terminate ()
	Perform static shut down. More...
static bool	boolean (double theNumber)
	Static conversion function. More...
static bool	boolean (const XalanDOMString &theString)
	Static conversion function. More...
static bool	boolean (const NodeRefListBase &theNodeList)
	Static conversion function. More...
static const XalanDOMString &	string (bool theBool)
	Static conversion function. More...
static void	string (bool theBool, FormatterListener &formatterListener, MemberFunctionPtr function)
static void	string (double theNumber, XalanDOMString &theString)
	Static conversion function. More...
static void	string (double theNumber, FormatterListener &formatterListener, MemberFunctionPtr function)
static void	string (const XalanNode &theNode, XalanDOMString &theString)
	Static conversion function. More...
static void	string (const XalanNode &theNode, FormatterListener &formatterListener, MemberFunctionPtr function)
static void	string (const NodeRefListBase &theNodeList, XalanDOMString &theString)
	Static conversion function. More...
static void	string (const NodeRefListBase &theNodeList, FormatterListener &formatterListener, MemberFunctionPtr function)
static double	number (bool theBoolean)
	Static conversion function. More...
static double	number (const XalanDOMString &theString, MemoryManagerType &theManager)
static double	number (XPathExecutionContext &executionContext, const NodeRefListBase &theNodeList)
	Static conversion function. More...
static double	number (XPathExecutionContext &executionContext, const XalanNode &theNode)
	Static conversion function. More...

Additional Inherited Members
Protected Member Functions inherited from XObject
virtual eObjectType	getRealType () const
	Tell what kind of class this is. More...
virtual void	referenced ()
virtual void	dereferenced ()
virtual	~XObject ()
Protected Member Functions inherited from XalanReferenceCountedObject
	XalanReferenceCountedObject ()
	Create a XalanReferenceCountedObject. More...
virtual	~XalanReferenceCountedObject ()
virtual unsigned int	getReferenceCount () const
Static Protected Member Functions inherited from XalanReferenceCountedObject
static void	addReference (XalanReferenceCountedObject *theInstance)
	Increment reference count. More...
static void	removeReference (XalanReferenceCountedObject *theInstance)
	Decrement reference count. More...
Static Protected Attributes inherited from XObject
static const XalanDOMString	s_emptyString
static const XalanDOMString &	s_booleanString
static const XalanDOMString &	s_falseString
static const XalanDOMString &	s_nodesetString
static const XalanDOMString &	s_numberString
static const XalanDOMString &	s_resultTreeFragmentString
static const XalanDOMString &	s_stringString
static const XalanDOMString &	s_trueString

Member Typedef Documentation

typedef XObject XNull::ParentType

Constructor & Destructor Documentation

XNull::XNull ( )

explicit

Create an XNull.

XNull::XNull

(

const XNull &

source

)

Create an XNull from another.

Parameters

source	object to copy
deepClone	true to copy all children on nodeset nodes

virtual XNull::~XNull ( )

virtual

Member Function Documentation

virtual bool XNull::boolean ( ) const

virtual

Cast result object to a boolean.

Returns

boolean value

Reimplemented from XObject.

virtual const XalanDOMString& XNull::getTypeString ( ) const

virtual

Given a request type, return the equivalent string.

For diagnostic purposes.

Returns

string for type

Implements XObject.

static void XNull::initialize ( )

static

Perform static initialization.

See class XPathInit.

virtual double XNull::num ( ) const

virtual

Cast result object to a number.

Returns

numeric value

Reimplemented from XObject.

virtual void XNull::ProcessXObjectTypeCallback ( XObjectTypeCallback &  theCallbackObject )

virtual

Process a callback request for preferred type information.

Parameters

theCallbackObject

object to call back

Implements XObject.

virtual void XNull::ProcessXObjectTypeCallback ( XObjectTypeCallback &  theCallbackObject ) const

virtual

Process a callback request for preferred type information.

Parameters

theCallbackObject

object to call back

Implements XObject.

virtual const XalanDOMString& XNull::str ( ) const

virtual

Cast result object to a string.

Returns

string value

Reimplemented from XObject.

virtual void XNull::str ( FormatterListener &  formatterListener, MemberFunctionPtr  function  ) const

virtual

Send the string value to a FormatterListener instance.

Parameters

formatterListener	The FormatterListener instance
function	A pointer to the member function of FormatterListener to call

Implements XObject.

virtual double XNull::stringLength ( ) const

virtual

Get the length of the string value of the instance.

Returns

The length of the string value

Implements XObject.

static void XNull::terminate ( )

static

Perform static shut down.

See class XPathInit.

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

• XNull.hpp