connectivity/source/inc/file/fcomp.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 #pragma once
  20
  21 #include <file/fcode.hxx>
  22 #include <utility>
  23
  24 namespace connectivity
  25 {
  26     class OSQLParseNode;
  27     namespace file
  28     {
  29         class OCode;
  30         class OOperand;
  31         class OSQLAnalyzer;
  32         typedef std::vector<std::unique_ptr<OCode>> OCodeList;
  33
  34         class OPredicateCompiler final : public ::salhelper::SimpleReferenceObject
  35         {
  36             friend class OPredicateInterpreter;
  37             friend class OSQLAnalyzer;
  38
  39             OCodeList                               m_aCodeList;
  40             css::uno::Reference< css::container::XNameAccess> m_orgColumns; // in filecurs this are the filecolumns
  41             OSQLAnalyzer*                           m_pAnalyzer;
  42             sal_Int32                               m_nParamCounter;
  43         public:
  44             OPredicateCompiler(OSQLAnalyzer* pAnalyzer);
  45
  46             virtual ~OPredicateCompiler() override;
  47
  48             void dispose();
  49
  50             void start(connectivity::OSQLParseNode const * pSQLParseNode);
  51             OOperand* execute(connectivity::OSQLParseNode const * pPredicateNode);
  52
  53             void Clean();
  54             bool isClean() const {return m_aCodeList.empty();}
  55             bool hasCode() const {return !isClean();}
  56             void  setOrigColumns(const css::uno::Reference< css::container::XNameAccess>& rCols) { m_orgColumns = rCols; }
  57             const css::uno::Reference< css::container::XNameAccess>& getOrigColumns() const { return m_orgColumns; }
  58         private:
  59             /// @throws css::sdbc::SQLException
  60             /// @throws css::uno::RuntimeException
  61             void execute_COMPARE(connectivity::OSQLParseNode const * pPredicateNode);
  62             /// @throws css::sdbc::SQLException
  63             /// @throws css::uno::RuntimeException
  64             void execute_LIKE(connectivity::OSQLParseNode const * pPredicateNode);
  65             /// @throws css::sdbc::SQLException
  66             /// @throws css::uno::RuntimeException
  67             void execute_BETWEEN(connectivity::OSQLParseNode const * pPredicateNode);
  68             /// @throws css::sdbc::SQLException
  69             /// @throws css::uno::RuntimeException
  70             void execute_ISNULL(connectivity::OSQLParseNode const * pPredicateNode);
  71             /// @throws css::sdbc::SQLException
  72             /// @throws css::uno::RuntimeException
  73             OOperand* execute_Operand(connectivity::OSQLParseNode const * pPredicateNode);
  74             /// @throws css::sdbc::SQLException
  75             /// @throws css::uno::RuntimeException
  76             void execute_Fold(OSQLParseNode const * pPredicateNode);
  77             /// @throws css::sdbc::SQLException
  78             /// @throws css::uno::RuntimeException
  79             void executeFunction(OSQLParseNode const * pPredicateNode);
  80         };
  81
  82
  83         class OPredicateInterpreter :
  84             public ::salhelper::SimpleReferenceObject
  85         {
  86             OCodeStack          m_aStack;
  87             ::rtl::Reference<OPredicateCompiler> m_rCompiler;
  88
  89         public:
  90             OPredicateInterpreter(::rtl::Reference<OPredicateCompiler> xComp) : m_rCompiler(std::move(xComp)){}
  91             virtual ~OPredicateInterpreter() override;
  92
  93             bool        evaluate(OCodeList& rCodeList);
  94             void        evaluateSelection(OCodeList& rCodeList, ORowSetValueDecoratorRef const & _rVal);
  95
  96             bool start()
  97             {
  98                 return evaluate(m_rCompiler->m_aCodeList);
  99             }
 100
 101             void startSelection(ORowSetValueDecoratorRef const & _rVal)
 102             {
 103                 evaluateSelection(m_rCompiler->m_aCodeList,_rVal);
 104             }
 105
 106
 107         };
 108     }
 109 }
 110
 111 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */