connectivity/source/inc/dbase/DIndexIter.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #pragma once
  21
  22 #include <file/fcode.hxx>
  23 #include <dbase/DIndex.hxx>
  24 #include <dbase/dindexnode.hxx>
  25
  26 namespace connectivity::dbase
  27     {
  28
  29         // IndexIterator
  30
  31         class OIndexIterator final
  32         {
  33             file::OBoolOperator*    m_pOperator;
  34             const file::OOperand*   m_pOperand;
  35             rtl::Reference<ODbaseIndex> m_xIndex;
  36             ONDXPagePtr             m_aRoot,
  37                                     m_aCurLeaf;
  38             sal_uInt16              m_nCurNode;
  39
  40             sal_uInt32 Find(bool bFirst);
  41             sal_uInt32 GetCompare(bool bFirst);
  42             sal_uInt32 GetLike(bool bFirst);
  43             sal_uInt32 GetNull(bool bFirst);
  44             sal_uInt32 GetNotNull(bool bFirst);
  45
  46             ONDXKey* GetFirstKey(ONDXPage* pPage,
  47                                 const file::OOperand& rKey);
  48             ONDXKey* GetNextKey();
  49
  50         public:
  51             OIndexIterator(ODbaseIndex* pInd)
  52                 :m_pOperator(nullptr)
  53                 ,m_pOperand(nullptr)
  54                 ,m_xIndex(pInd)
  55                 ,m_nCurNode(NODE_NOTFOUND)
  56             {
  57             }
  58
  59             ~OIndexIterator();
  60             sal_uInt32 First();
  61             sal_uInt32 Next();
  62
  63         };
  64
  65 }
  66
  67 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */