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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// 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_XsdIdCache_H
#define Patternist_XsdIdCache_H
#include <private/qschemacomponent_p.h>
#include <QtCore/QExplicitlySharedDataPointer>
#include <QtCore/QReadWriteLock>
#include <QtCore/QSet>
#include <QtCore/QString>
QT_BEGIN_NAMESPACE
namespace QPatternist
{
/**
* @short Helper class for keeping track of all existing IDs in a schema.
*
* @ingroup Patternist_schema
* @author Tobias Koenig <tobias.koenig@nokia.com>
*/
class XsdIdCache : public QSharedData
{
public:
typedef QExplicitlySharedDataPointer<XsdIdCache> Ptr;
/**
* Adds an @p id to the id cache.
*/
void addId(const QString &id);
/**
* Returns whether the id cache contains the given @p id already.
*/
bool hasId(const QString &id) const;
private:
QSet<QString> m_ids;
mutable QReadWriteLock m_lock;
};
}
QT_END_NAMESPACE
#endif
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