An QAbstractXmlForwardIterator which always is empty. More...

#include <qitem_p.h>

Inheritance diagram for QPatternist::EmptyIterator< T >:

Public Functions
virtual QAbstractXmlForwardIterator< T >::Ptr	copy () const

virtual xsInteger	count ()

virtual T	current () const

virtual T	next ()

virtual xsInteger	position () const

virtual QAbstractXmlForwardIterator< T >::Ptr	toReversed ()

Public Functions inherited from QAbstractXmlForwardIterator< T >
virtual bool	isEmpty ()
	Returns true if the sequence is empty. More...

virtual T	last ()
	Returns the item at the end of this QAbstractXmlForwardIterator. More...

	QAbstractXmlForwardIterator ()
	Default constructor. More...

virtual qint64	sizeHint () const
	Gives a hint to the size of the contained sequence. More...

virtual QList< T >	toList ()
	Performs a copy of this QAbstractXmlForwardIterator(with copy()), and returns its items in a QList. More...

virtual	~QAbstractXmlForwardIterator ()
	Destructor. More...

Public Functions inherited from QSharedData
	QSharedData ()
	Constructs a QSharedData object with a reference count of 0. More...

	QSharedData (const QSharedData &)
	Constructs a QSharedData object with reference count 0. More...

Friends
class	CommonValues

Additional Inherited Members
Public Types inherited from QAbstractXmlForwardIterator< T >
typedef QList< QExplicitlySharedDataPointer< QAbstractXmlForwardIterator< T > > >	List
	A QList containing QAbstractXmlForwardIterator::Ptr instances. More...

typedef QExplicitlySharedDataPointer< QAbstractXmlForwardIterator< T > >	Ptr
	A smart pointer wrapping an instance of a QAbstractXmlForwardIterator subclass. More...

typedef QVector< QExplicitlySharedDataPointer< QAbstractXmlForwardIterator< T > > >	Vector
	A QVector containing QAbstractXmlForwardIterator::Ptr instances. More...

Public Variables inherited from QSharedData
QAtomicInt	ref

Related Functions inherited from QAbstractXmlForwardIterator< T >
template<typename TResult , typename TSource , typename TMapper >
static QAbstractXmlForwardIterator< TResult >::Ptr	makeSequenceMappingIterator (const TMapper &mapper, const QExplicitlySharedDataPointer< QAbstractXmlForwardIterator< TSource > > &source, const DynamicContext::Ptr &context)
	An object generator for SequenceMappingIterator. More...

bool	qIsForwardIteratorEnd (const T &unit)
	The Callback QAbstractXmlForwardIterator uses for determining whether unit is the end of a sequence. More...

Detailed Description

template<typename T>
class QPatternist::EmptyIterator< T >

An QAbstractXmlForwardIterator which always is empty.

EmptyIterator is an QAbstractXmlForwardIterator over the type T, which always is empty. Other iterators can also be empty(or, at least behave as they are empty), but this class is special designed for this purpose and is therefore fast.

EmptyIterator's constructor is protected, instances is retrieved from CommonValues.

Author: Frans Englich frans.nosp@m..eng.nosp@m.lich@.nosp@m.noki.nosp@m.a.com

Definition at line 92 of file qitem_p.h.

Functions

◆ copy()

template<typename T>

virtual QAbstractXmlForwardIterator<T>::Ptr QPatternist::EmptyIterator< T >::copy ( ) const

inlinevirtual

Returns: this

Reimplemented from QAbstractXmlForwardIterator< T >.

Definition at line 123 of file qemptyiterator_p.h.

         {
             return typename QAbstractXmlForwardIterator<T>::Ptr(const_cast<EmptyIterator *>(this));
         }

◆ count()

template<typename T>

virtual xsInteger QPatternist::EmptyIterator< T >::count ( )

inlinevirtual

Returns: always 0

Reimplemented from QAbstractXmlForwardIterator< T >.

Definition at line 115 of file qemptyiterator_p.h.

         {
             return 0;
         }

◆ current()

template<typename T>

virtual T QPatternist::EmptyIterator< T >::current ( ) const

inlinevirtual

Returns: always a default constructed value, T().

Implements QAbstractXmlForwardIterator< T >.

Definition at line 91 of file qemptyiterator_p.h.

         {
             return T();
         }

◆ next()

template<typename T>

virtual T QPatternist::EmptyIterator< T >::next ( )

inlinevirtual

Returns: always a default constructed value, T().

Implements QAbstractXmlForwardIterator< T >.

Definition at line 83 of file qemptyiterator_p.h.

         {
             return T();
         }

◆ position()

template<typename T>

virtual xsInteger QPatternist::EmptyIterator< T >::position ( ) const

inlinevirtual

Returns: always 0.

Implements QAbstractXmlForwardIterator< T >.

Definition at line 99 of file qemptyiterator_p.h.

         {
             return 0;
         }

◆ toReversed()

template<typename T>

virtual QAbstractXmlForwardIterator<T>::Ptr QPatternist::EmptyIterator< T >::toReversed ( )

inlinevirtual

Returns: always this, the reverse of () is ().

Reimplemented from QAbstractXmlForwardIterator< T >.

Definition at line 107 of file qemptyiterator_p.h.

         {
             return typename QAbstractXmlForwardIterator<T>::Ptr(const_cast<EmptyIterator<T> *>(this));
         }

Friends and Related Functions

◆ CommonValues

template<typename T>

friend class CommonValues

friend

Definition at line 129 of file qemptyiterator_p.h.

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

/src/xmlpatterns/data/qitem_p.h
/src/xmlpatterns/iterators/qemptyiterator_p.h

Public Functions

Friends

Additional Inherited Members

Detailed Description

template<typename T> class QPatternist::EmptyIterator< T >

Functions

◆ copy()

◆ count()

◆ current()

◆ next()

◆ position()

◆ toReversed()

Friends and Related Functions

◆ CommonValues

template<typename T>
class QPatternist::EmptyIterator< T >