/****************************************************************************

**

** Copyright (C) 2003-2006 Ben van Klinken and the CLucene Team.

** All rights reserved.

**

** 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