tools/assistant/lib/fulltextsearch/qindexreader_p.h
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2003-2006 Ben van Klinken and the CLucene Team.
       
     4 ** All rights reserved.
       
     5 **
       
     6 ** Portion Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     7 ** All rights reserved.
       
     8 **
       
     9 ** This file may be used under the terms of the GNU Lesser General Public
       
    10 ** License version 2.1 as published by the Free Software Foundation and
       
    11 ** appearing in the file LICENSE.LGPL included in the packaging of this file.
       
    12 ** Please review the following information to ensure the GNU Lesser General
       
    13 ** Public License version 2.1 requirements will be met:
       
    14 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    15 **
       
    16 ****************************************************************************/
       
    17 
       
    18 #ifndef QINDEXREADER_P_H
       
    19 #define QINDEXREADER_P_H
       
    20 
       
    21 //
       
    22 //  W A R N I N G
       
    23 //  -------------
       
    24 //
       
    25 // This file is not part of the Qt API. It exists for the convenience
       
    26 // of the help generator tools. This header file may change from version
       
    27 // to version without notice, or even be removed.
       
    28 //
       
    29 // We mean it.
       
    30 //
       
    31 
       
    32 #include "qterm_p.h"
       
    33 #include "qdocument_p.h"
       
    34 #include "qclucene_global_p.h"
       
    35 
       
    36 #include <QtCore/QList>
       
    37 #include <QtCore/QString>
       
    38 #include <QtCore/QSharedDataPointer>
       
    39 #include <QtCore/QSharedData>
       
    40 
       
    41 CL_NS_DEF(index)
       
    42     class IndexReader;
       
    43 CL_NS_END
       
    44 CL_NS_USE(index)
       
    45 
       
    46 QT_BEGIN_NAMESPACE
       
    47 
       
    48 class QCLuceneIndexWriter;
       
    49 class QCLuceneIndexSearcher;
       
    50 
       
    51 class QHELP_EXPORT QCLuceneIndexReaderPrivate : public QSharedData
       
    52 {
       
    53 public:
       
    54     QCLuceneIndexReaderPrivate();
       
    55     QCLuceneIndexReaderPrivate(const QCLuceneIndexReaderPrivate &other);
       
    56 
       
    57     ~QCLuceneIndexReaderPrivate();
       
    58 
       
    59     IndexReader *reader;
       
    60     bool deleteCLuceneIndexReader;
       
    61 
       
    62 private:
       
    63     QCLuceneIndexReaderPrivate &operator=(const QCLuceneIndexReaderPrivate &other);
       
    64 };
       
    65 
       
    66 class QHELP_EXPORT QCLuceneIndexReader
       
    67 {
       
    68 public:
       
    69     enum FieldOption {
       
    70 		ALL = 1,
       
    71 		INDEXED = 2,
       
    72 		UNINDEXED = 4,
       
    73 		INDEXED_WITH_TERMVECTOR = 8,
       
    74 		INDEXED_NO_TERMVECTOR = 16,
       
    75 		TERMVECTOR = 32,
       
    76 		TERMVECTOR_WITH_POSITION = 64,
       
    77 		TERMVECTOR_WITH_OFFSET = 128,
       
    78 		TERMVECTOR_WITH_POSITION_OFFSET = 256
       
    79 	};
       
    80 
       
    81     virtual ~QCLuceneIndexReader();
       
    82 
       
    83     static bool isLuceneFile(const QString &filename);
       
    84     static bool indexExists(const QString &directory);
       
    85     static QCLuceneIndexReader open(const QString &path);
       
    86     
       
    87     static void unlock(const QString &path);
       
    88     static bool isLocked(const QString &directory);
       
    89 
       
    90 	static quint64 lastModified(const QString &directory);
       
    91 	static qint64 getCurrentVersion(const QString &directory);
       
    92 
       
    93     void close();
       
    94     bool isCurrent();
       
    95 	void undeleteAll();
       
    96 	qint64 getVersion();
       
    97 	void deleteDocument(qint32 docNum);
       
    98     bool hasNorms(const QString &field);
       
    99     qint32 deleteDocuments(const QCLuceneTerm &term);
       
   100     bool document(qint32 index, QCLuceneDocument &document);
       
   101     void setNorm(qint32 doc, const QString &field, qreal value);
       
   102     void setNorm(qint32 doc, const QString &field, quint8 value);
       
   103 
       
   104 protected:
       
   105     friend class QCLuceneIndexWriter;
       
   106     friend class QCLuceneIndexSearcher;
       
   107     QSharedDataPointer<QCLuceneIndexReaderPrivate> d;
       
   108 
       
   109 private:
       
   110     QCLuceneIndexReader();
       
   111 };
       
   112 
       
   113 QT_END_NAMESPACE
       
   114 
       
   115 #endif  // QINDEXREADER_P_H