QPatternist::SortTuple Class Reference

Represents a value and its sort keys in FLOWR's order by clause. More...

#include <qsorttuple_p.h>

Inheritance diagram for QPatternist::SortTuple:

Public Types
typedef QExplicitlySharedDataPointer< SortTuple >	Ptr
Public Types inherited from QPatternist::AtomicValue
typedef QList< AtomicValue::Ptr >	List
typedef QExplicitlySharedDataPointer< AtomicValue >	Ptr

Public Functions
virtual bool	hasError () const
	Always asserts. More...
virtual bool	isAtomicValue () const
	Always asserts. More...
virtual bool	isNode () const
	Always asserts. More...
const Item::Vector &	sortKeys () const
	SortTuple (const Item::Iterator::Ptr &aValue, const Item::Vector &aSortKeys)
virtual QString	stringValue () const
virtual ItemType::Ptr	type () const
virtual Item::Iterator::Ptr	typedValue () const
	Always asserts. More...
const Item::Iterator::Ptr &	value () const
Public Functions inherited from QPatternist::AtomicValue
virtual bool	evaluateEBV (const QExplicitlySharedDataPointer< DynamicContext > &context) const
virtual	~AtomicValue ()
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...
Public Functions inherited from QPatternist::CppCastingHelper< AtomicValue >
const TCastTarget *	as () const
TCastTarget *	as ()

Properties
const Item::Vector	m_sortKeys
const Item::Iterator::Ptr	m_value

Additional Inherited Members
Static Public Functions inherited from QPatternist::AtomicValue
static ItemType::Ptr	qtToXDMType (const QXmlItem &item)
static QVariant	toQt (const AtomicValue *const value)
static QVariant	toQt (const AtomicValue::Ptr &value)
static Item	toXDM (const QVariant &value)
Public Variables inherited from QSharedData
QAtomicInt	ref
Protected Functions inherited from QPatternist::AtomicValue
	AtomicValue ()
Protected Functions inherited from QPatternist::CppCastingHelper< AtomicValue >
	CppCastingHelper ()

Detailed Description

Represents a value and its sort keys in FLOWR's order by clause.

SortTuple doesn't correspond to anything in the XPath Data Model and can therefore well be described as an exotic implementation detail. Most of its functions asserts because it makes no sense to call them.

SortTuple exclusively exists for use with the expressions OrderBy and ReturnOrderBy, and acts as a carrier between those two for sort keys and source values.

Author

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

Definition at line 81 of file qsorttuple_p.h.

Typedefs

Ptr

typedef QExplicitlySharedDataPointer<SortTuple> QPatternist::SortTuple::Ptr

A smart pointer wrapping SortTuple instances.

Definition at line 98 of file qsorttuple_p.h.

Constructors and Destructors

SortTuple()

QPatternist::SortTuple::SortTuple ( const Item::Iterator::Ptr &  aValue, const Item::Vector &  aSortKeys  )

inline

aSortKeys may be empty.

Definition at line 87 of file qsorttuple_p.h.

                                                      : m_sortKeys(aSortKeys),
                                                          m_value(aValue)
        {
            Q_ASSERT(m_value);
            Q_ASSERT(!m_sortKeys.isEmpty());
        }

Functions

hasError()

bool SortTuple::hasError ( ) const

virtual

Always asserts.

Reimplemented from QPatternist::AtomicValue.

Definition at line 70 of file qsorttuple.cpp.

{
    Q_ASSERT_X(false, Q_FUNC_INFO,
               "It makes no sense to call this function.");
    return false;
}

isAtomicValue()

bool SortTuple::isAtomicValue ( ) const

virtual

Always asserts.

Definition at line 51 of file qsorttuple.cpp.

{
    Q_ASSERT_X(false, Q_FUNC_INFO,
               "It makes no sense to call this function.");
    return false;
}

isNode()

bool SortTuple::isNode ( ) const

virtual

Always asserts.

Definition at line 63 of file qsorttuple.cpp.

{
    Q_ASSERT_X(false, Q_FUNC_INFO,
               "It makes no sense to call this function.");
    return false;
}

sortKeys()

const Item::Vector& QPatternist::SortTuple::sortKeys ( ) const

inline

Definition at line 128 of file qsorttuple_p.h.

Referenced by qLess< Item::List >::operator()().

        {
            return m_sortKeys;
        }

stringValue()

QString SortTuple::stringValue ( ) const

virtual

This function is sometimes called by Literal::description(). This function simply returns "SortTuple".

Implements QPatternist::AtomicValue.

Definition at line 58 of file qsorttuple.cpp.

{
    return QLatin1String("SortTuple");
}

type()

ItemType::Ptr SortTuple::type ( ) const

virtual

Implements QPatternist::AtomicValue.

Definition at line 84 of file qsorttuple.cpp.

{
    return BuiltinTypes::xsAnyAtomicType;
}

typedValue()

Item::Iterator::Ptr SortTuple::typedValue ( ) const

virtual

Always asserts.

Definition at line 77 of file qsorttuple.cpp.

{
    Q_ASSERT_X(false, Q_FUNC_INFO,
               "It makes no sense to call this function.");
    return Item::Iterator::Ptr();
}

value()

const Item::Iterator::Ptr& QPatternist::SortTuple::value ( ) const

inline

Definition at line 133 of file qsorttuple_p.h.

        {
            return m_value;
        }

Properties

m_sortKeys

const Item::Vector QPatternist::SortTuple::m_sortKeys

private

Definition at line 139 of file qsorttuple_p.h.

Referenced by sortKeys(), and SortTuple().

m_value

const Item::Iterator::Ptr QPatternist::SortTuple::m_value

private

Definition at line 140 of file qsorttuple_p.h.

Referenced by SortTuple(), and value().

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

• /src/xmlpatterns/data/qsorttuple_p.h
• /src/xmlpatterns/data/qsorttuple.cpp