QPatternist::OperandSwitcherMathematician Class Reference

Delegates an AtomicMathematician and switches its operands. More...

#include <qatomicmathematicians_p.h>

Inheritance diagram for QPatternist::OperandSwitcherMathematician:

Public Functions
virtual Item	calculate (const Item &o1, const Operator op, const Item &o2, const QExplicitlySharedDataPointer< DynamicContext > &context) const
	OperandSwitcherMathematician (const AtomicMathematician::Ptr &mathematician)
Public Functions inherited from QPatternist::AtomicMathematician
virtual	~AtomicMathematician ()
Public Functions inherited from QPatternist::AtomicTypeVisitorResult
	AtomicTypeVisitorResult ()
virtual	~AtomicTypeVisitorResult ()
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...

Properties
const AtomicMathematician::Ptr	m_mather

Additional Inherited Members
Public Types inherited from QPatternist::AtomicMathematician
enum	Operator {   Div = 1, IDiv = 2, Substract = 4, Mod = 8,   Multiply = 16, Add = 32 }
typedef QFlags< Operator >	Operators
typedef QExplicitlySharedDataPointer< AtomicMathematician >	Ptr
Public Types inherited from QPatternist::AtomicTypeVisitorResult
typedef QExplicitlySharedDataPointer< AtomicTypeVisitorResult >	Ptr
Static Public Functions inherited from QPatternist::AtomicMathematician
static QString	displayName (const AtomicMathematician::Operator op)
Public Variables inherited from QSharedData
QAtomicInt	ref

Detailed Description

Delegates an AtomicMathematician and switches its operands.

Switches the operands of the call to a call to the calculate() on an AtomicMathematician such that the left operand becomes the right, and vice versa.

Its constructor takes an AtomicMathematician instance which this OperandSwitcherMathematician should act as as a middle-man for, having the role of switching the two operands. Thus, OperandSwitcherMathematician can be described as a proxy or delegator class.

This class is used for implementing operator combinations such as numeric * xs:yearMonthDuration and xs:yearMonthDuration * numeric.

Author

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

Definition at line 180 of file qatomicmathematicians_p.h.

Constructors and Destructors

OperandSwitcherMathematician()

OperandSwitcherMathematician::OperandSwitcherMathematician

(

const AtomicMathematician::Ptr &

mathematician

)

Creates an OperandSwitcherMathematician.

Parameters

mathematician

the AtomicMathematician this OperandSwitcherMathematician should switch the operands for. Must be a non null, valid pointer.

Definition at line 292 of file qatomicmathematicians.cpp.

Referenced by QPatternist::DurationDurationMathematician::calculate().

                                                                          : m_mather(mathematician)
{
    Q_ASSERT(mathematician);
}

Functions

calculate()

Item OperandSwitcherMathematician::calculate ( const Item &  o1, const Operator  op, const Item &  o2, const QExplicitlySharedDataPointer< DynamicContext > &  context  ) const

virtual

Switch o1 and o2, and returns the value from the AtomicMathematician this OperandSwitcherMathematician represents.

Implements QPatternist::AtomicMathematician.

Definition at line 297 of file qatomicmathematicians.cpp.

{
    return m_mather->calculate(o2, op, o1, context);
}

Properties

m_mather

const AtomicMathematician::Ptr QPatternist::OperandSwitcherMathematician::m_mather

private

Definition at line 200 of file qatomicmathematicians_p.h.

Referenced by calculate().

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

• /src/xmlpatterns/data/qatomicmathematicians_p.h
• /src/xmlpatterns/data/qatomicmathematicians.cpp