forms/source/component/cachedrowset.cxx

   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
  21 #include "cachedrowset.hxx"
  22 #include "services.hxx"
  23 #include "frm_strings.hxx"
  24
  25 #include <com/sun/star/beans/XPropertySet.hpp>
  26 #include <com/sun/star/sdb/XQueriesSupplier.hpp>
  27 #include <com/sun/star/sdbc/ResultSetType.hpp>
  28
  29 #include <tools/diagnose_ex.h>
  30
  31
  32 namespace frm
  33 {
  34
  35
  36     using ::com::sun::star::uno::Reference;
  37     using ::com::sun::star::uno::UNO_QUERY_THROW;
  38     using ::com::sun::star::uno::UNO_SET_THROW;
  39     using ::com::sun::star::uno::Exception;
  40     using ::com::sun::star::sdbc::XConnection;
  41     using ::com::sun::star::beans::XPropertySet;
  42     using ::com::sun::star::uno::makeAny;
  43     using ::com::sun::star::sdbc::SQLException;
  44     using ::com::sun::star::sdb::XQueriesSupplier;
  45     using ::com::sun::star::container::XNameAccess;
  46     using ::com::sun::star::sdbc::XResultSet;
  47     using ::com::sun::star::sdbc::XStatement;
  48
  49     namespace ResultSetType = ::com::sun::star::sdbc::ResultSetType;
  50
  51     struct CachedRowSet_Data
  52     {
  53         OUString                 sCommand;
  54         bool                        bEscapeProcessing;
  55         Reference< XConnection >        xConnection;
  56
  57         bool                            bStatementDirty;
  58
  59         CachedRowSet_Data()
  60             :sCommand()
  61             ,bEscapeProcessing( false )
  62             ,xConnection()
  63             ,bStatementDirty( true )
  64         {
  65         }
  66     };
  67
  68     CachedRowSet::CachedRowSet()
  69         :m_pData( new CachedRowSet_Data )
  70     {
  71     }
  72
  73
  74     CachedRowSet::~CachedRowSet()
  75     {
  76         dispose();
  77     }
  78
  79
  80     void CachedRowSet::setCommand( const OUString& _rCommand )
  81     {
  82         if ( m_pData->sCommand == _rCommand )
  83             return;
  84
  85         m_pData->sCommand = _rCommand;
  86         m_pData->bStatementDirty = true;
  87     }
  88
  89
  90     void CachedRowSet::setCommandFromQuery( const OUString& _rQueryName )
  91     {
  92         Reference< XQueriesSupplier > xSupplyQueries( m_pData->xConnection, UNO_QUERY_THROW );
  93         Reference< XNameAccess >      xQueries      ( xSupplyQueries->getQueries(), UNO_QUERY_THROW );
  94         Reference< XPropertySet >     xQuery        ( xQueries->getByName( _rQueryName ), UNO_QUERY_THROW );
  95
  96         bool bEscapeProcessing( false );
  97         OSL_VERIFY( xQuery->getPropertyValue( PROPERTY_ESCAPE_PROCESSING ) >>= bEscapeProcessing );
  98         setEscapeProcessing( bEscapeProcessing );
  99
 100         OUString sCommand;
 101         OSL_VERIFY( xQuery->getPropertyValue( PROPERTY_COMMAND ) >>= sCommand );
 102         setCommand( sCommand );
 103     }
 104
 105
 106     void CachedRowSet::setEscapeProcessing ( const bool _bEscapeProcessing )
 107     {
 108         if ( m_pData->bEscapeProcessing == _bEscapeProcessing )
 109             return;
 110
 111         m_pData->bEscapeProcessing = _bEscapeProcessing;
 112         m_pData->bStatementDirty = true;
 113     }
 114
 115
 116     void CachedRowSet::setConnection( const Reference< XConnection >& _rxConnection )
 117     {
 118         if ( m_pData->xConnection == _rxConnection )
 119             return;
 120
 121         m_pData->xConnection = _rxConnection;
 122         m_pData->bStatementDirty = true;
 123     }
 124
 125
 126     Reference< XResultSet > CachedRowSet::execute()
 127     {
 128         Reference< XResultSet > xResult;
 129         try
 130         {
 131             OSL_PRECOND( m_pData->xConnection.is(), "CachedRowSet::execute: how am I expected to do this without a connection?" );
 132             if ( !m_pData->xConnection.is() )
 133                 return xResult;
 134
 135             Reference< XStatement > xStatement( m_pData->xConnection->createStatement(), UNO_SET_THROW );
 136             Reference< XPropertySet > xStatementProps( xStatement, UNO_QUERY_THROW );
 137             xStatementProps->setPropertyValue( PROPERTY_ESCAPE_PROCESSING, makeAny( m_pData->bEscapeProcessing ) );
 138             xStatementProps->setPropertyValue( PROPERTY_RESULTSET_TYPE, makeAny( ResultSetType::FORWARD_ONLY ) );
 139
 140             xResult.set( xStatement->executeQuery( m_pData->sCommand ), UNO_SET_THROW );
 141             m_pData->bStatementDirty = false;
 142         }
 143         catch( const SQLException& )
 144         {
 145             throw;
 146         }
 147         catch( const Exception& )
 148         {
 149             DBG_UNHANDLED_EXCEPTION();
 150         }
 151         return xResult;
 152     }
 153
 154
 155     bool CachedRowSet::isDirty() const
 156     {
 157         return m_pData->bStatementDirty;
 158     }
 159
 160
 161     void CachedRowSet::dispose()
 162     {
 163         try
 164         {
 165             m_pData.reset( new CachedRowSet_Data );
 166         }
 167         catch( const Exception& )
 168         {
 169             DBG_UNHANDLED_EXCEPTION();
 170         }
 171     }
 172
 173
 174 } // namespace frm
 175
 176
 177 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */