dbaccess/source/filter/hsqldb/hsqlbinarynode.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
  10 #pragma once
  11
  12 #include <vector>
  13
  14 #include "rowinputbinary.hxx"
  15 #include "columndef.hxx"
  16
  17 namespace dbahsql
  18 {
  19 class HsqlBinaryNode
  20 {
  21 private:
  22     sal_Int32 m_nLeft = -1;
  23     sal_Int32 m_nRight = -1;
  24     sal_Int32 m_nPos = -1;
  25
  26 public:
  27     /**
  28      * Represents one element of an AVL tree in the binary file which contains
  29      * the data.
  30      */
  31     HsqlBinaryNode(sal_Int32 nPos);
  32
  33     /**
  34      * Read position of children from data file.
  35      *
  36      * @param rInput input stream where the positions should be read from.
  37      */
  38     void readChildren(HsqlRowInputStream const& rInput);
  39
  40     /**
  41      * Get Position of left children. It should be called only after position of
  42      * children is read.
  43      */
  44     sal_Int32 getLeft() const;
  45
  46     /**
  47      * Get Position of right children. It should be called only after position of
  48      * children is read.
  49      */
  50     sal_Int32 getRight() const;
  51
  52     /**
  53      * Read the row represented by this node.
  54      *
  55      * @param rInput input stream where the row should be read from.
  56      */
  57     std::vector<css::uno::Any> readRow(HsqlRowInputStream& rInput,
  58                                        const std::vector<ColumnDefinition>& aColTypes,
  59                                        sal_Int32 nIndexCount);
  60 };
  61 }
  62
  63 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */