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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** 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 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_NamespaceResolver_H
#define Patternist_NamespaceResolver_H
#include <QSharedData>
#include <QXmlName>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
template<typename A, typename B> class QHash;
namespace QPatternist
{
/**
* @short Base class for namespace resolvers.
*
* @ingroup Patternist
* @author Frans Englich <fenglich@trolltech.com>
*/
class NamespaceResolver : public QSharedData
{
public:
enum Constants
{
NoBinding = -1
};
typedef QExplicitlySharedDataPointer<NamespaceResolver> Ptr;
/**
* A list of namespace bindings. The key is the prefix, and the value is
* the namespace URI.
*/
typedef QHash<QXmlName::PrefixCode, QXmlName::NamespaceCode> Bindings;
NamespaceResolver();
virtual ~NamespaceResolver();
/**
* Adds the mapping from @p prefix to @p namespaceURI to
* this NamespaceResolver. If this NamespaceResolver already contains
* a binding involving @p prefix, the old binding is replaced.
*/
virtual void addBinding(const QXmlName nb) = 0;
/**
* Resolves the @p prefix to the corresponding namespace URI. If no binding
* exists for @p prefix, NoBinding is returned.
*
* @returns the namespace corresponding to @p prefix.
*/
virtual QXmlName::NamespaceCode lookupNamespaceURI(const QXmlName::PrefixCode prefix) const = 0;
/**
* @returns all bindings this NamespaceResolver handles.
*/
virtual Bindings bindings() const = 0;
};
}
QT_END_NAMESPACE
QT_END_HEADER
#endif
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