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/****************************************************************************
**
** Copyright (C) 2008 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.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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_XsdAttributeReference_H
#define Patternist_XsdAttributeReference_H
#include "qxsdattributeuse_p.h"
#include <QtXmlPatterns/QSourceLocation>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
namespace QPatternist
{
/**
* @short A helper class for attribute reference resolving.
*
* For easy resolving of attribute references, we have this class
* that can be used as a place holder for the real attribute use
* object it is referring to.
* So whenever the parser detects an attribute reference, it creates
* a XsdAttributeReference and returns it instead of the XsdAttributeUse.
* During a later phase, the resolver will look for all XsdAttributeReferences
* in the schema and will replace them with their referring XsdAttributeUse
* objects.
*
* @ingroup Patternist_schema
* @author Tobias Koenig <tobias.koenig@nokia.com>
*/
class XsdAttributeReference : public XsdAttributeUse
{
public:
typedef QExplicitlySharedDataPointer<XsdAttributeReference> Ptr;
/**
* Describes the type of the attribute reference.
*/
enum Type
{
AttributeUse, ///< The reference points to an attribute use.
AttributeGroup ///< The reference points to an attribute group.
};
/**
* Always returns false, used to avoid dynamic casts.
*/
virtual bool isAttributeUse() const;
/**
* Always returns true, used to avoid dynamic casts.
*/
virtual bool isReference() const;
/**
* Sets the @p type of the attribute reference.
*/
void setType(Type type);
/**
* Returns the type of the attribute reference.
*/
Type type() const;
/**
* Sets the @p name of the attribute or attribute group the
* attribute reference refers to.
*/
void setReferenceName(const QXmlName &name);
/**
* Returns the name of the attribute or attribute group the
* attribute reference refers to.
*/
QXmlName referenceName() const;
/**
* Sets the source @p location where the reference is located.
*/
void setSourceLocation(const QSourceLocation &location);
/**
* Returns the source location where the reference is located.
*/
QSourceLocation sourceLocation() const;
private:
Type m_type;
QXmlName m_referenceName;
QSourceLocation m_sourceLocation;
};
}
QT_END_NAMESPACE
QT_END_HEADER
#endif
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