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/lang/XComponent.hpp>
  26 #include <com/sun/star/beans/XPropertySet.hpp>
  27 #include <com/sun/star/sdb/XQueriesSupplier.hpp>
  28 #include <com/sun/star/sdbc/ResultSetType.hpp>
  29
  30 #include <tools/diagnose_ex.h>
  31
  32 //........................................................................
  33 namespace frm
  34 {
  35 //........................................................................
  36
  37     using ::com::sun::star::uno::Reference;
  38     using ::com::sun::star::uno::UNO_QUERY;
  39     using ::com::sun::star::uno::UNO_QUERY_THROW;
  40     using ::com::sun::star::uno::UNO_SET_THROW;
  41     using ::com::sun::star::uno::Exception;
  42     using ::com::sun::star::uno::RuntimeException;
  43     using ::com::sun::star::sdbc::XConnection;
  44     using ::com::sun::star::lang::XComponent;
  45     using ::com::sun::star::beans::XPropertySet;
  46     using ::com::sun::star::uno::makeAny;
  47     using ::com::sun::star::sdbc::SQLException;
  48     using ::com::sun::star::uno::Any;
  49     using ::com::sun::star::sdb::XQueriesSupplier;
  50     using ::com::sun::star::container::XNameAccess;
  51     using ::com::sun::star::sdbc::XResultSet;
  52     using ::com::sun::star::sdbc::XStatement;
  53
  54     namespace ResultSetType = ::com::sun::star::sdbc::ResultSetType;
  55
  56     //====================================================================
  57     //= CachedRowSet_Data
  58     //====================================================================
  59     struct CachedRowSet_Data
  60     {
  61         ::comphelper::ComponentContext  aContext;
  62         OUString                 sCommand;
  63         sal_Bool                        bEscapeProcessing;
  64         Reference< XConnection >        xConnection;
  65
  66         bool                            bStatementDirty;
  67
  68         CachedRowSet_Data( const ::comphelper::ComponentContext& _rContext )
  69             :aContext( _rContext )
  70             ,sCommand()
  71             ,bEscapeProcessing( sal_False )
  72             ,xConnection()
  73             ,bStatementDirty( true )
  74         {
  75         }
  76     };
  77
  78     //====================================================================
  79     //= CachedRowSet
  80     //====================================================================
  81     //--------------------------------------------------------------------
  82     CachedRowSet::CachedRowSet( const ::comphelper::ComponentContext& _rContext )
  83         :m_pData( new CachedRowSet_Data( _rContext ) )
  84     {
  85     }
  86
  87     //--------------------------------------------------------------------
  88     CachedRowSet::~CachedRowSet()
  89     {
  90         dispose();
  91     }
  92
  93     //--------------------------------------------------------------------
  94     void CachedRowSet::setCommand( const OUString& _rCommand )
  95     {
  96         if ( m_pData->sCommand == _rCommand )
  97             return;
  98
  99         m_pData->sCommand = _rCommand;
 100         m_pData->bStatementDirty = true;
 101     }
 102
 103     //--------------------------------------------------------------------
 104     void CachedRowSet::setCommandFromQuery( const OUString& _rQueryName )
 105     {
 106         Reference< XQueriesSupplier > xSupplyQueries( m_pData->xConnection, UNO_QUERY_THROW );
 107         Reference< XNameAccess >      xQueries      ( xSupplyQueries->getQueries(), UNO_QUERY_THROW );
 108         Reference< XPropertySet >     xQuery        ( xQueries->getByName( _rQueryName ), UNO_QUERY_THROW );
 109
 110         sal_Bool bEscapeProcessing( sal_False );
 111         OSL_VERIFY( xQuery->getPropertyValue( PROPERTY_ESCAPE_PROCESSING ) >>= bEscapeProcessing );
 112         setEscapeProcessing( bEscapeProcessing );
 113
 114         OUString sCommand;
 115         OSL_VERIFY( xQuery->getPropertyValue( PROPERTY_COMMAND ) >>= sCommand );
 116         setCommand( sCommand );
 117     }
 118
 119     //--------------------------------------------------------------------
 120     void CachedRowSet::setEscapeProcessing ( const sal_Bool _bEscapeProcessing )
 121     {
 122         if ( m_pData->bEscapeProcessing == _bEscapeProcessing )
 123             return;
 124
 125         m_pData->bEscapeProcessing = _bEscapeProcessing;
 126         m_pData->bStatementDirty = true;
 127     }
 128
 129     //--------------------------------------------------------------------
 130     void CachedRowSet::setConnection( const Reference< XConnection >& _rxConnection )
 131     {
 132         if ( m_pData->xConnection == _rxConnection )
 133             return;
 134
 135         m_pData->xConnection = _rxConnection;
 136         m_pData->bStatementDirty = true;
 137     }
 138
 139     //--------------------------------------------------------------------
 140     Reference< XResultSet > CachedRowSet::execute()
 141     {
 142         Reference< XResultSet > xResult;
 143         try
 144         {
 145             OSL_PRECOND( m_pData->xConnection.is(), "CachedRowSet::execute: how am I expected to do this without a connection?" );
 146             if ( !m_pData->xConnection.is() )
 147                 return xResult;
 148
 149             Reference< XStatement > xStatement( m_pData->xConnection->createStatement(), UNO_SET_THROW );
 150             Reference< XPropertySet > xStatementProps( xStatement, UNO_QUERY_THROW );
 151             xStatementProps->setPropertyValue( PROPERTY_ESCAPE_PROCESSING, makeAny( m_pData->bEscapeProcessing ) );
 152             xStatementProps->setPropertyValue( PROPERTY_RESULTSET_TYPE, makeAny( ResultSetType::FORWARD_ONLY ) );
 153
 154             xResult.set( xStatement->executeQuery( m_pData->sCommand ), UNO_SET_THROW );
 155             m_pData->bStatementDirty = false;
 156         }
 157         catch( const SQLException& )
 158         {
 159             throw;
 160         }
 161         catch( const Exception& )
 162         {
 163             DBG_UNHANDLED_EXCEPTION();
 164         }
 165         return xResult;
 166     }
 167
 168     //--------------------------------------------------------------------
 169     bool CachedRowSet::isDirty() const
 170     {
 171         return m_pData->bStatementDirty;
 172     }
 173
 174     //--------------------------------------------------------------------
 175     void CachedRowSet::dispose()
 176     {
 177         try
 178         {
 179             m_pData.reset( new CachedRowSet_Data( m_pData->aContext ) );
 180         }
 181         catch( const Exception& )
 182         {
 183             DBG_UNHANDLED_EXCEPTION();
 184         }
 185     }
 186
 187 //........................................................................
 188 } // namespace frm
 189 //........................................................................
 190
 191 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */