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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
#ifndef Patternist_AtomicMathematicians_H
#define Patternist_AtomicMathematicians_H
#include "qatomicmathematician_p.h"
#include "qsourcelocationreflection_p.h"
/**
* @file
* @short Contains classes performing arithemetic operations between atomic values, such as
* subtracting two dates.
*/
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
namespace QPatternist
{
/**
*
* @ingroup Patternist_xdm
* @author Frans Englich <frans.englich@nokia.com>
*/
class DecimalMathematician : public AtomicMathematician
, public DelegatingSourceLocationReflection
{
public:
inline DecimalMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)
{
}
virtual Item calculate(const Item &o1,
const Operator op,
const Item &o2,
const QExplicitlySharedDataPointer<DynamicContext> &context) const;
};
/**
* @short Performs arithmetics between Integer values.
*
* @ingroup Patternist_xdm
* @author Frans Englich <frans.englich@nokia.com>
*/
class IntegerMathematician : public AtomicMathematician
, public DelegatingSourceLocationReflection
{
public:
inline IntegerMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)
{
}
virtual Item calculate(const Item &o1,
const Operator op,
const Item &o2,
const QExplicitlySharedDataPointer<DynamicContext> &context) const;
};
/**
* @short Performs division or multiplication between either DayTimeDuration or YearMonthDuration
* and Double values.
*
* @ingroup Patternist_xdm
* @author Frans Englich <frans.englich@nokia.com>
*/
class DurationNumericMathematician : public AtomicMathematician
, public DelegatingSourceLocationReflection
{
public:
inline DurationNumericMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)
{
}
virtual Item calculate(const Item &o1,
const Operator op,
const Item &o2,
const QExplicitlySharedDataPointer<DynamicContext> &context) const;
};
/**
* @short Performs division between DayTimeDuration and DayTimeDuration, or
* YearMonthDuration and YearMonthDuration.
*
* @ingroup Patternist_xdm
* @author Frans Englich <frans.englich@nokia.com>
*/
class DurationDurationDivisor : public AtomicMathematician
{
public:
virtual Item calculate(const Item &o1,
const Operator op,
const Item &o2,
const QExplicitlySharedDataPointer<DynamicContext> &context) const;
};
/**
* @short Performs arithmetics between DayTimeDuration and DayTimeDuration, or
* YearMonthDuration and YearMonthDuration.
*
* @ingroup Patternist_xdm
* @author Frans Englich <frans.englich@nokia.com>
*/
class DurationDurationMathematician : public AtomicMathematician
{
public:
virtual Item calculate(const Item &o1,
const Operator op,
const Item &o2,
const QExplicitlySharedDataPointer<DynamicContext> &context) const;
};
/**
* @short 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
* <tt>numeric * xs:yearMonthDuration</tt> and
* <tt>xs:yearMonthDuration * numeric</tt>.
*
* @ingroup Patternist_xdm
* @author Frans Englich <frans.englich@nokia.com>
*/
class OperandSwitcherMathematician : public AtomicMathematician
{
public:
/**
* Creates an OperandSwitcherMathematician.
*
* @param mathematician the AtomicMathematician this OperandSwitcherMathematician
* should switch the operands for. Must be a non @c null, valid pointer.
*/
OperandSwitcherMathematician(const AtomicMathematician::Ptr &mathematician);
/**
* Switch @p o1 and @p o2, and returns the value from the AtomicMathematician
* this OperandSwitcherMathematician represents.
*/
virtual Item calculate(const Item &o1,
const Operator op,
const Item &o2,
const QExplicitlySharedDataPointer<DynamicContext> &context) const;
private:
const AtomicMathematician::Ptr m_mather;
};
/**
* @short Performs arithmetics between an AbstractDateTime value and
* an AbstractDuration value.
*
* @ingroup Patternist_xdm
* @author Frans Englich <frans.englich@nokia.com>
*/
class DateTimeDurationMathematician : public AtomicMathematician
, public DelegatingSourceLocationReflection
{
public:
inline DateTimeDurationMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)
{
}
/**
* @p o1 is an AbstractDateTime and @p o2 is an AbstractDuration.
*
*/
virtual Item calculate(const Item &o1,
const Operator op,
const Item &o2,
const QExplicitlySharedDataPointer<DynamicContext> &context) const;
};
/**
* @short Performs arithmetics between two AbstractDateTime values.
*
* @ingroup Patternist_xdm
* @author Frans Englich <frans.englich@nokia.com>
*/
class AbstractDateTimeMathematician : public AtomicMathematician
{
public:
virtual Item calculate(const Item &o1,
const Operator op,
const Item &o2,
const QExplicitlySharedDataPointer<DynamicContext> &context) const;
};
}
QT_END_NAMESPACE
QT_END_HEADER
#endif
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