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