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/****************************************************************************
**
** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtXmlPatterns of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, 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 are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
//
// 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_ComparisonFactory_H
#define Patternist_ComparisonFactory_H
#include "qatomiccomparator_p.h"
#include "qderivedstring_p.h"
#include "qitem_p.h"
#include "qreportcontext_p.h"
#include "qschematype_p.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
namespace QPatternist
{
/**
* @short Provides compare(), which is a high-level helper function for
* comparing atomic values.
*
* This class wraps the helper class ComparisonPlatform with a more specific,
* high-level API.
*
* @see ComparisonPlatform
* @author Frans Englich <fenglich@trolltech.com>
* @ingroup Patternist_schema
*/
class ComparisonFactory
{
public:
/**
* @short Returns the result of evaluating operator @p op applied to the atomic
* values @p operand1 and @p operand2.
*
* The caller guarantees that both values are of type @p type.
*
* ComparisonFactory does not take ownership of @p sourceLocationReflection.
*/
static bool compare(const AtomicValue::Ptr &operand1,
const AtomicComparator::Operator op,
const AtomicValue::Ptr &operand2,
const SchemaType::Ptr &type,
const ReportContext::Ptr &context,
const SourceLocationReflection *const sourceLocationReflection);
/**
* @short Returns the result of evaluating operator @p op applied to the atomic
* values @p operand1 and @p operand2.
*
* In opposite to compare() it converts the operands from string type
* to @p type and compares these constructed types.
*
* The caller guarantees that both values are of type @p type.
*
* ComparisonFactory does not take ownership of @p sourceLocationReflection.
*/
static bool constructAndCompare(const DerivedString<TypeString>::Ptr &operand1,
const AtomicComparator::Operator op,
const DerivedString<TypeString>::Ptr &operand2,
const SchemaType::Ptr &type,
const ReportContext::Ptr &context,
const SourceLocationReflection *const sourceLocationReflection);
private:
Q_DISABLE_COPY(ComparisonFactory)
};
}
QT_END_NAMESPACE
QT_END_HEADER
#endif
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