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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 Technology Preview License Agreement accompanying
** this package.
**
** 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.
**
** 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_XsdIdcHelper_H
#define Patternist_XsdIdcHelper_H
#include "qreportcontext_p.h"
#include "qschematype_p.h"
#include <QtXmlPatterns/QXmlItem>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
namespace QPatternist
{
/**
* @short A helper class for validating identity constraints.
*
* This class represents a field node from the key-sequence as defined in
* the validation rules at http://www.w3.org/TR/xmlschema11-1/#d0e32243.
*/
class FieldNode
{
public:
/**
* Creates an empty field node.
*/
FieldNode();
/**
* Creates a field node that is bound to a xml node.
*
* @param item The xml node the field is bound to.
* @param data The string content of that field.
* @param type The type that is bound to that field.
*/
FieldNode(const QXmlItem &item, const QString &data, const SchemaType::Ptr &type);
/**
* Returns whether this field is empty.
*
* A field can be empty, if the xpath expression selects an absent attribute
* or element.
*/
bool isEmpty() const;
/**
* Returns whether this field is equal to the @p other field.
*
* Equal means that both have the same type and there content is equal in the
* types value space.
*/
bool isEqualTo(const FieldNode &other, const NamePool::Ptr &namePool, const ReportContext::Ptr &context, const SourceLocationReflection *const reflection) const;
/**
* Returns the xml node item the field is bound to.
*/
QXmlItem item() const;
private:
QXmlItem m_item;
QString m_data;
SchemaType::Ptr m_type;
};
/**
* @short A helper class for validating identity constraints.
*
* This class represents a target or qualified node from the target or qualified
* node set as defined in the validation rules at http://www.w3.org/TR/xmlschema11-1/#d0e32243.
*
* A target node is part of the qualified node set, if all of its fields are not empty.
*/
class TargetNode
{
public:
/**
* Defines a set of target nodes.
*/
typedef QSet<TargetNode> Set;
/**
* Creates a new target node that is bound to the xml node @p item.
*/
explicit TargetNode(const QXmlItem &item);
/**
* Returns the xml node item the target node is bound to.
*/
QXmlItem item() const;
/**
* Returns all xml node items, the fields of that target node are bound to.
*/
QVector<QXmlItem> fieldItems() const;
/**
* Returns the number of fields that are empty.
*/
int emptyFieldsCount() const;
/**
* Returns whether the target node has the same fields as the @p other target node.
*/
bool fieldsAreEqual(const TargetNode &other, const NamePool::Ptr &namePool, const ReportContext::Ptr &context, const SourceLocationReflection *const reflection) const;
/**
* Adds a new field to the target node with the given values.
*/
void addField(const QXmlItem &item, const QString &data, const SchemaType::Ptr &type);
/**
* Returns whether the target node is equal to the @p other target node.
*/
bool operator==(const TargetNode &other) const;
private:
QXmlItem m_item;
QVector<FieldNode> m_fields;
};
/**
* Creates a hash value for the given target @p node.
*/
inline uint qHash(const QPatternist::TargetNode &node)
{
return qHash(node.item().toNodeModelIndex());
}
}
QT_END_NAMESPACE
QT_END_HEADER
#endif
|
