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diff --git a/src/assistant/clucene/qquery_p.h b/src/assistant/clucene/qquery_p.h
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+++ b/src/assistant/clucene/qquery_p.h
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+/****************************************************************************
+**
+** Copyright (C) 2003-2006 Ben van Klinken and the CLucene Team.
+** All rights reserved.
+**
+** Portion Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+**
+** 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.
+**
+****************************************************************************/
+
+#ifndef QQUERY_P_H
+#define QQUERY_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API. It exists for the convenience
+// of the help generator tools. This header file may change from version
+// to version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qterm_p.h"
+#include "qclucene_global_p.h"
+
+#include <QtCore/QList>
+#include <QtCore/QString>
+#include <QtCore/QSharedDataPointer>
+#include <QtCore/QSharedData>
+
+CL_NS_DEF(search)
+    class Query;
+CL_NS_END
+CL_NS_USE(search)
+
+QT_BEGIN_NAMESPACE
+
+class QCLuceneHits;
+class QCLuceneTermQuery;
+class QCLuceneRangeQuery;
+class QCLuceneQueryParser;
+class QCLucenePrefixQuery;
+class QCLuceneBooleanQuery;
+class QCLucenePhraseQuery;
+
+class QHELP_EXPORT QCLuceneQueryPrivate : public QSharedData
+{
+public:
+    QCLuceneQueryPrivate();
+    QCLuceneQueryPrivate(const QCLuceneQueryPrivate &other);
+
+    ~QCLuceneQueryPrivate();
+
+    Query *query;
+    bool deleteCLuceneQuery;
+
+private:
+    QCLuceneQueryPrivate &operator=(const QCLuceneQueryPrivate &other);
+};
+
+class QHELP_EXPORT QCLuceneQuery
+{
+public:
+    virtual ~QCLuceneQuery();
+
+    void setBoost(qreal boost);
+    qreal getBoost() const;
+    QString getQueryName() const;
+    bool instanceOf(const QString &other) const;
+    QString toString(const QString &field) const;    
+    quint32 hashCode() const;
+    QString toString() const;
+    bool equals(const QCLuceneQuery &other) const;
+
+protected:
+    friend class QCLuceneHits;
+    friend class QCLuceneTermQuery;
+    friend class QCLuceneRangeQuery;
+    friend class QCLucenePrefixQuery;
+    friend class QCLuceneQueryParser;
+    friend class QCLuceneBooleanQuery;
+    friend class QCLucenePhraseQuery;
+    QSharedDataPointer<QCLuceneQueryPrivate> d;
+
+private:
+    QCLuceneQuery();
+};
+
+class QHELP_EXPORT QCLucenePrefixQuery : public QCLuceneQuery
+{
+public:
+    QCLucenePrefixQuery(const QCLuceneTerm &prefix);
+    ~QCLucenePrefixQuery();
+
+    static QString getClassName();
+	    
+	QCLuceneTerm getPrefix() const;
+
+private:
+    QCLuceneTerm prefix;
+};
+
+class QHELP_EXPORT QCLuceneRangeQuery : public QCLuceneQuery
+{
+public:
+    QCLuceneRangeQuery(const QCLuceneTerm &lowerTerm, 
+        const QCLuceneTerm &upperTerm, bool inclusive);
+    ~QCLuceneRangeQuery();
+
+    static QString getClassName();
+	    
+	QCLuceneTerm getLowerTerm() const;
+    QCLuceneTerm getUpperTerm() const;
+
+    bool isInclusive() const;
+    QString getField() const;
+
+private:
+    QCLuceneTerm lowerTerm;
+    QCLuceneTerm upperTerm;
+};
+
+class QHELP_EXPORT QCLuceneTermQuery : public QCLuceneQuery
+{
+public:
+    QCLuceneTermQuery(const QCLuceneTerm &term);
+    ~QCLuceneTermQuery();
+
+    static QString getClassName();
+	    
+	QCLuceneTerm getTerm() const;
+
+private:
+    QCLuceneTerm term;
+};
+
+class QHELP_EXPORT QCLuceneBooleanQuery : public QCLuceneQuery
+{
+public:
+    QCLuceneBooleanQuery();
+    ~QCLuceneBooleanQuery();
+
+    static QString getClassName();
+
+    quint32 getClauseCount() const;
+    quint32 getMaxClauseCount() const;
+    void setMaxClauseCount(quint32 maxClauseCount);
+
+    void add(QCLuceneQuery *query, bool required, bool prohibited);
+    void add(QCLuceneQuery *query, bool delQuery, bool required, bool prohibited);
+
+private:
+    QList<QCLuceneQuery*> queries;
+};
+
+class QHELP_EXPORT QCLucenePhraseQuery : public QCLuceneQuery
+{
+public:
+    QCLucenePhraseQuery();
+    ~QCLucenePhraseQuery();
+
+    static QString getClassName();
+
+    qint32 getSlop() const;
+    void setSlop(const qint32 slop);
+    
+    void addTerm(const QCLuceneTerm &term);
+    void addTerm(const QCLuceneTerm &term, qint32 position);
+
+    QString getFieldName() const;
+    QList<QCLuceneTerm> getTerms() const;
+
+private:
+    QList<QCLuceneTerm> termList;
+};
+
+QT_END_NAMESPACE
+
+#endif  // QQUERY_P_H