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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_XsdInstanceReader_H
#define Patternist_XsdInstanceReader_H
#include "qabstractxmlnodemodel.h"
#include "qpullbridge_p.h"
#include "qxsdschemacontext_p.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
namespace QPatternist
{
/**
* @short The schema instance reader.
*
* This class reads in a xml instance document from a QAbstractXmlNodeModel
* and provides a QXmlStreamReader like interface with some additional context
* information.
*
* @ingroup Patternist_schema
* @author Tobias Koenig <tobias.koenig@nokia.com>
*/
class XsdInstanceReader
{
public:
typedef QExplicitlySharedDataPointer<XsdInstanceReader> Ptr;
/**
* Creates a new instance reader that will read the data from
* the given @p model.
*
* @param model The model the data are read from.
* @param context The context that is used for error reporting etc.
*/
XsdInstanceReader(const QAbstractXmlNodeModel *model, const XsdSchemaContext::Ptr &context);
protected:
/**
* Returns @c true if the end of the document is reached, @c false otherwise.
*/
bool atEnd() const;
/**
* Reads the next node from the document.
*/
void readNext();
/**
* Returns whether the current node is a start element.
*/
bool isStartElement() const;
/**
* Returns whether the current node is an end element.
*/
bool isEndElement() const;
/**
* Returns whether the current node has a text node among its children.
*/
bool hasChildText() const;
/**
* Returns whether the current node has an element node among its children.
*/
bool hasChildElement() const;
/**
* Returns the name of the current node.
*/
QXmlName name() const;
/**
* Returns whether the current node has an attribute with the given @p name.
*/
bool hasAttribute(const QXmlName &name) const;
/**
* Returns the attribute with the given @p name of the current node.
*/
QString attribute(const QXmlName &name) const;
/**
* Returns the list of attribute names of the current node.
*/
QSet<QXmlName> attributeNames() const;
/**
* Returns the concatenated text of all direct child text nodes.
*/
QString text() const;
/**
* Converts a qualified name into a QXmlName according to the namespace
* mappings of the current node.
*/
QXmlName convertToQName(const QString &name) const;
/**
* Returns a source location object for the current position.
*/
QSourceLocation sourceLocation() const;
/**
* Returns the QXmlItem for the current position.
*/
QXmlItem item() const;
/**
* Returns the QXmlItem for the attribute with the given @p name at the current position.
*/
QXmlItem attributeItem(const QXmlName &name) const;
/**
* Returns the namespace bindings for the given node model @p index.
*/
QVector<QXmlName> namespaceBindings(const QXmlNodeModelIndex &index) const;
/**
* The shared schema context.
*/
XsdSchemaContext::Ptr m_context;
private:
PullBridge m_model;
QHash<QXmlName, QString> m_cachedAttributes;
QHash<QXmlName, QXmlItem> m_cachedAttributeItems;
QSourceLocation m_cachedSourceLocation;
QXmlItem m_cachedItem;
};
}
QT_END_NAMESPACE
QT_END_HEADER
#endif
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