connectivity/source/drivers/macab/macabcondition.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 <sal/config.h>
  23
  24 #include <string_view>
  25
  26 #include "MacabHeader.hxx"
  27 #include "MacabRecord.hxx"
  28
  29 #include <connectivity/dbexception.hxx>
  30
  31 namespace connectivity::macab
  32 {
  33
  34 class MacabCondition
  35 {
  36     public:
  37         virtual ~MacabCondition();
  38         virtual bool isAlwaysTrue() const = 0;
  39         virtual bool isAlwaysFalse() const = 0;
  40         virtual bool eval(const MacabRecord *aRecord) const = 0;
  41 };
  42
  43 class MacabConditionConstant : public MacabCondition
  44 {
  45     protected:
  46         bool m_bValue;
  47
  48     public:
  49         explicit MacabConditionConstant(const bool bValue);
  50         virtual bool isAlwaysTrue() const override;
  51         virtual bool isAlwaysFalse() const override;
  52         virtual bool eval(const MacabRecord *aRecord) const override;
  53 };
  54
  55 class MacabConditionColumn : public MacabCondition
  56 {
  57     protected:
  58         sal_Int32 m_nFieldNumber;
  59
  60     public:
  61         /// @throws css::sdbc::SQLException
  62         MacabConditionColumn(
  63             const MacabHeader *header,
  64             std::u16string_view sColumnName);
  65         virtual bool isAlwaysTrue() const override;
  66         virtual bool isAlwaysFalse() const override;
  67 };
  68
  69 class MacabConditionNull : public MacabConditionColumn
  70 {
  71     public:
  72         /// @throws css::sdbc::SQLException
  73         MacabConditionNull(
  74             const MacabHeader *header,
  75             std::u16string_view sColumnName);
  76         virtual bool eval(const MacabRecord *aRecord) const override;
  77 };
  78
  79 class MacabConditionNotNull : public MacabConditionColumn
  80 {
  81     public:
  82         /// @throws css::sdbc::SQLException
  83         MacabConditionNotNull(
  84             const MacabHeader *header,
  85             std::u16string_view sColumnName);
  86         virtual bool eval(const MacabRecord *aRecord) const override;
  87 };
  88
  89 class MacabConditionCompare : public MacabConditionColumn
  90 {
  91     protected:
  92         const OUString m_sMatchString;
  93
  94     public:
  95         /// @throws css::sdbc::SQLException
  96         MacabConditionCompare(
  97             const MacabHeader *header,
  98             std::u16string_view sColumnName,
  99             const OUString &sMatchString);
 100 };
 101
 102 class MacabConditionEqual : public MacabConditionCompare
 103 {
 104     public:
 105         /// @throws css::sdbc::SQLException
 106         MacabConditionEqual(
 107             const MacabHeader *header,
 108             std::u16string_view sColumnName,
 109             const OUString &sMatchString);
 110         virtual bool eval(const MacabRecord *aRecord) const override;
 111 };
 112
 113 class MacabConditionDifferent : public MacabConditionCompare
 114 {
 115     public:
 116         /// @throws css::sdbc::SQLException
 117         MacabConditionDifferent(
 118             const MacabHeader *header,
 119             std::u16string_view sColumnName,
 120             const OUString &sMatchString);
 121         virtual bool eval(const MacabRecord *aRecord) const override;
 122 };
 123
 124 class MacabConditionSimilar : public MacabConditionCompare
 125 {
 126     public:
 127         /// @throws css::sdbc::SQLException
 128         MacabConditionSimilar(
 129             const MacabHeader *header,
 130             std::u16string_view sColumnName,
 131             const OUString &sMatchString);
 132         virtual bool eval(const MacabRecord *aRecord) const override;
 133 };
 134
 135 class MacabConditionBoolean : public MacabCondition
 136 {
 137     protected:
 138         MacabCondition *m_pLeft, *m_pRight;
 139
 140     public:
 141         MacabConditionBoolean(MacabCondition *pLeft, MacabCondition *pRight);
 142         virtual ~MacabConditionBoolean() override;
 143 };
 144
 145 class MacabConditionOr : public MacabConditionBoolean
 146 {
 147     public:
 148         MacabConditionOr(MacabCondition *pLeft, MacabCondition *pRight);
 149         virtual bool isAlwaysTrue() const override;
 150         virtual bool isAlwaysFalse() const override;
 151         virtual bool eval(const MacabRecord *aRecord) const override;
 152 };
 153
 154 class MacabConditionAnd : public MacabConditionBoolean
 155 {
 156     public:
 157         MacabConditionAnd(MacabCondition *pLeft, MacabCondition *pRight);
 158         virtual bool isAlwaysTrue() const override;
 159         virtual bool isAlwaysFalse() const override;
 160         virtual bool eval(const MacabRecord *aRecord) const override;
 161 };
 162
 163 }
 164
 165 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */