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