connectivity/source/drivers/postgresql/pq_updateableresultset.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*************************************************************************
   3  *
   4  *  Effective License of whole file:
   5  *
   6  *    This library is free software; you can redistribute it and/or
   7  *    modify it under the terms of the GNU Lesser General Public
   8  *    License version 2.1, as published by the Free Software Foundation.
   9  *
  10  *    This library is distributed in the hope that it will be useful,
  11  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  *    Lesser General Public License for more details.
  14  *
  15  *    You should have received a copy of the GNU Lesser General Public
  16  *    License along with this library; if not, write to the Free Software
  17  *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  18  *    MA  02111-1307  USA
  19  *
  20  *  Parts "Copyright by Sun Microsystems, Inc" prior to August 2011:
  21  *
  22  *    The Contents of this file are made available subject to the terms of
  23  *    the GNU Lesser General Public License Version 2.1
  24  *
  25  *    Copyright: 200? by Sun Microsystems, Inc.
  26  *
  27  *    Contributor(s): Joerg Budischewski
  28  *
  29  *  All parts contributed on or after August 2011:
  30  *
  31  *    This Source Code Form is subject to the terms of the Mozilla Public
  32  *    License, v. 2.0. If a copy of the MPL was not distributed with this
  33  *    file, You can obtain one at http://mozilla.org/MPL/2.0/.
  34  *
  35  ************************************************************************/
  36
  37 #pragma once
  38
  39 #include "pq_sequenceresultset.hxx"
  40 #include "pq_resultsetmetadata.hxx"
  41
  42 #include <com/sun/star/sdbc/FetchDirection.hpp>
  43 #include <com/sun/star/sdbc/ResultSetConcurrency.hpp>
  44 #include <com/sun/star/sdbc/ResultSetType.hpp>
  45 #include <com/sun/star/sdbc/XResultSetUpdate.hpp>
  46 #include <com/sun/star/sdbc/XRowUpdate.hpp>
  47 #include <utility>
  48
  49 namespace pq_sdbc_driver
  50 {
  51
  52 struct UpdateableField
  53 {
  54     UpdateableField( )
  55         : isTouched(false)
  56     {}
  57     css::uno::Any value;
  58     bool    isTouched;
  59 };
  60
  61 typedef std::vector< UpdateableField > UpdateableFieldVector;
  62
  63 class UpdateableResultSet final :
  64         public SequenceResultSet,
  65         public css::sdbc::XResultSetUpdate,
  66         public css::sdbc::XRowUpdate
  67 {
  68     ConnectionSettings **m_ppSettings;
  69     OUString m_schema;
  70     OUString m_table;
  71     std::vector< OUString > m_primaryKey;
  72     UpdateableFieldVector m_updateableField;
  73     bool  m_insertRow;
  74
  75 private:
  76     UpdateableResultSet(
  77         const ::rtl::Reference< comphelper::RefCountedMutex > & mutex,
  78         const css::uno::Reference< css::uno::XInterface > &owner,
  79         std::vector< OUString >&& colNames,
  80         std::vector< std::vector< css::uno::Any > >&& data,
  81         ConnectionSettings **ppSettings,
  82         OUString schema,
  83         OUString table,
  84         std::vector< OUString >&& primaryKey)
  85         : SequenceResultSet( mutex, owner, std::move(colNames), std::move(data), (*ppSettings)->tc ),
  86           m_ppSettings( ppSettings ),
  87           m_schema(std::move( schema )),
  88           m_table(std::move( table )),
  89           m_primaryKey( std::move(primaryKey) ),
  90           m_insertRow( false )
  91     {
  92         // LEM TODO: this duplicates code in pq_resultset.cxx, except for different value
  93         //           of ResultSetConcurrency. Baaad.
  94         //           Why is an updatable ResultSet a sequenceresultset in the first place?
  95         //           This seems to imply that the whole data is fetched once and kept in memory. BAAAAD.
  96         // LEM TODO: shouldn't these things be inherited from the statement or something like that?
  97         // Positioned update/delete not supported, so no cursor name
  98         // Fetch direction and size are cursor-specific things, so not used now.
  99         // Fetch size not set
 100         m_props[ BASERESULTSET_FETCH_DIRECTION ] <<= css::sdbc::FetchDirection::UNKNOWN;
 101         // No escape processing for now
 102         m_props[ BASERESULTSET_ESCAPE_PROCESSING ] <<= false;
 103         // Bookmarks not implemented for now
 104         m_props[ BASERESULTSET_IS_BOOKMARKABLE ] <<= false;
 105         m_props[ BASERESULTSET_RESULT_SET_CONCURRENCY ] <<=
 106             css::sdbc::ResultSetConcurrency::UPDATABLE;
 107         m_props[ BASERESULTSET_RESULT_SET_TYPE ] <<=
 108             css::sdbc::ResultSetType::SCROLL_INSENSITIVE;
 109     }
 110
 111     OUString buildWhereClause();
 112     void checkUpdate( sal_Int32 column );
 113
 114 public:
 115     static css::uno::Reference< css::sdbc::XCloseable > createFromPGResultSet(
 116         const ::rtl::Reference< comphelper::RefCountedMutex > & mutex,
 117         const css::uno::Reference< css::uno::XInterface > &owner,
 118         ConnectionSettings **ppSettings,
 119         PGresult *result,
 120         const OUString &schema,
 121         const OUString &table,
 122         std::vector< OUString > && primaryKey );
 123
 124 public: // XInterface
 125     virtual void SAL_CALL acquire() noexcept override { SequenceResultSet::acquire(); }
 126     virtual void SAL_CALL release() noexcept override { SequenceResultSet::release(); }
 127     virtual css::uno::Any  SAL_CALL queryInterface(
 128         const css::uno::Type & reqType ) override;
 129
 130 public: // XTypeProvider
 131     virtual css::uno::Sequence< css::uno::Type > SAL_CALL getTypes() override;
 132     virtual css::uno::Sequence< sal_Int8> SAL_CALL getImplementationId() override;
 133
 134 public: // XResultSetUpdate
 135     virtual void SAL_CALL insertRow(  ) override;
 136     virtual void SAL_CALL updateRow(  ) override;
 137     virtual void SAL_CALL deleteRow(  ) override;
 138     virtual void SAL_CALL cancelRowUpdates(  ) override;
 139     virtual void SAL_CALL moveToInsertRow(  ) override;
 140     virtual void SAL_CALL moveToCurrentRow(  ) override;
 141
 142 public: // XRowUpdate
 143     virtual void SAL_CALL updateNull( sal_Int32 columnIndex ) override;
 144     virtual void SAL_CALL updateBoolean( sal_Int32 columnIndex, sal_Bool x ) override;
 145     virtual void SAL_CALL updateByte( sal_Int32 columnIndex, sal_Int8 x ) override;
 146     virtual void SAL_CALL updateShort( sal_Int32 columnIndex, sal_Int16 x ) override;
 147     virtual void SAL_CALL updateInt( sal_Int32 columnIndex, sal_Int32 x ) override;
 148     virtual void SAL_CALL updateLong( sal_Int32 columnIndex, sal_Int64 x ) override;
 149     virtual void SAL_CALL updateFloat( sal_Int32 columnIndex, float x ) override;
 150     virtual void SAL_CALL updateDouble( sal_Int32 columnIndex, double x ) override;
 151     virtual void SAL_CALL updateString( sal_Int32 columnIndex, const OUString& x ) override;
 152     virtual void SAL_CALL updateBytes( sal_Int32 columnIndex, const css::uno::Sequence< sal_Int8 >& x ) override;
 153     virtual void SAL_CALL updateDate( sal_Int32 columnIndex, const css::util::Date& x ) override;
 154     virtual void SAL_CALL updateTime( sal_Int32 columnIndex, const css::util::Time& x ) override;
 155     virtual void SAL_CALL updateTimestamp( sal_Int32 columnIndex, const css::util::DateTime& x ) override;
 156     virtual void SAL_CALL updateBinaryStream( sal_Int32 columnIndex, const css::uno::Reference< css::io::XInputStream >& x, sal_Int32 length ) override;
 157     virtual void SAL_CALL updateCharacterStream( sal_Int32 columnIndex, const css::uno::Reference< css::io::XInputStream >& x, sal_Int32 length ) override;
 158     virtual void SAL_CALL updateObject( sal_Int32 columnIndex, const css::uno::Any& x ) override;
 159     virtual void SAL_CALL updateNumericObject( sal_Int32 columnIndex, const css::uno::Any& x, sal_Int32 scale ) override;
 160
 161 public:
 162     /// @throws css::uno::RuntimeException
 163     static css::uno::Sequence< css::uno::Type > getStaticTypes( bool updateable );
 164
 165 };
 166
 167
 168 }
 169
 170 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */