connectivity/source/drivers/odbc/OResultSetMetaData.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 #include "odbc/OResultSetMetaData.hxx"
  21 #include "odbc/OTools.hxx"
  22
  23 using namespace connectivity::odbc;
  24 using namespace com::sun::star::uno;
  25 using namespace com::sun::star::lang;
  26 using namespace com::sun::star::sdbc;
  27
  28
  29 OResultSetMetaData::~OResultSetMetaData()
  30 {
  31 }
  32
  33 OUString OResultSetMetaData::getCharColAttrib(sal_Int32 _column,sal_Int32 ident) throw(SQLException, RuntimeException)
  34 {
  35     sal_Int32 column = _column;
  36     if(_column <(sal_Int32) m_vMapping.size()) // use mapping
  37         column = m_vMapping[_column];
  38
  39     SQLSMALLINT BUFFER_LEN = 128;
  40     char *pName = new char[BUFFER_LEN+1];
  41     SQLSMALLINT nRealLen=0;
  42     SQLRETURN nRet = N3SQLColAttribute(m_aStatementHandle,
  43                                     (SQLUSMALLINT)column,
  44                                     (SQLUSMALLINT)ident,
  45                                     (SQLPOINTER)pName,
  46                                     BUFFER_LEN,
  47                                     &nRealLen,
  48                                     NULL
  49                                     );
  50     OUString sValue;
  51     if ( nRet == SQL_SUCCESS )
  52     {
  53         if ( nRealLen < 0 )
  54             nRealLen = BUFFER_LEN;
  55         sValue = OUString(pName,nRealLen,m_pConnection->getTextEncoding());
  56     }
  57     delete [] pName;
  58     OTools::ThrowException(m_pConnection,nRet,m_aStatementHandle,SQL_HANDLE_STMT,*this);
  59     if(nRealLen > BUFFER_LEN)
  60     {
  61         pName = new char[nRealLen+1];
  62         nRet = N3SQLColAttribute(m_aStatementHandle,
  63                                     (SQLUSMALLINT)column,
  64                                     (SQLUSMALLINT)ident,
  65                                     (SQLPOINTER)pName,
  66                                     nRealLen,
  67                                     &nRealLen,
  68                                     NULL
  69                                     );
  70         if ( nRet == SQL_SUCCESS && nRealLen > 0)
  71             sValue = OUString(pName,nRealLen,m_pConnection->getTextEncoding());
  72         delete [] pName;
  73         OTools::ThrowException(m_pConnection,nRet,m_aStatementHandle,SQL_HANDLE_STMT,*this);
  74     }
  75
  76     return  sValue;
  77 }
  78
  79 SQLLEN OResultSetMetaData::getNumColAttrib(OConnection* _pConnection
  80                                               ,SQLHANDLE _aStatementHandle
  81                                               ,const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& _xInterface
  82                                               ,sal_Int32 _column
  83                                               ,sal_Int32 _ident) throw(SQLException, RuntimeException)
  84 {
  85     SQLLEN nValue=0;
  86     OTools::ThrowException(_pConnection,(*(T3SQLColAttribute)_pConnection->getOdbcFunction(ODBC3SQLColAttribute))(_aStatementHandle,
  87                                          (SQLUSMALLINT)_column,
  88                                          (SQLUSMALLINT)_ident,
  89                                          NULL,
  90                                          0,
  91                                          NULL,
  92                                          &nValue),_aStatementHandle,SQL_HANDLE_STMT,_xInterface);
  93     return nValue;
  94 }
  95
  96 sal_Int32 OResultSetMetaData::getNumColAttrib(sal_Int32 _column,sal_Int32 ident) throw(SQLException, RuntimeException)
  97 {
  98     sal_Int32 column = _column;
  99     if(_column < (sal_Int32)m_vMapping.size()) // use mapping
 100         column = m_vMapping[_column];
 101
 102     return getNumColAttrib(m_pConnection,m_aStatementHandle,*this,column,ident);
 103 }
 104
 105 sal_Int32 SAL_CALL OResultSetMetaData::getColumnDisplaySize( sal_Int32 column ) throw(SQLException, RuntimeException, std::exception)
 106 {
 107     return getNumColAttrib(column,SQL_DESC_DISPLAY_SIZE);
 108 }
 109
 110 SQLSMALLINT OResultSetMetaData::getColumnODBCType(OConnection* _pConnection
 111                                               ,SQLHANDLE _aStatementHandle
 112                                               ,const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& _xInterface
 113                                               ,sal_Int32 column)
 114                                                throw(::com::sun::star::sdbc::SQLException, ::com::sun::star::uno::RuntimeException)
 115 {
 116     SQLSMALLINT nType = 0;
 117     try
 118     {
 119         nType = (SQLSMALLINT)getNumColAttrib(_pConnection,_aStatementHandle,_xInterface,column,SQL_DESC_CONCISE_TYPE);
 120         if(nType == SQL_UNKNOWN_TYPE)
 121             nType = (SQLSMALLINT)getNumColAttrib(_pConnection,_aStatementHandle,_xInterface,column, SQL_DESC_TYPE);
 122     }
 123     catch(SQLException& ) // in this case we have an odbc 2.0 driver
 124     {
 125         nType = (SQLSMALLINT)getNumColAttrib(_pConnection,_aStatementHandle,_xInterface,column,SQL_DESC_CONCISE_TYPE );
 126     }
 127
 128     return nType;
 129 }
 130
 131 sal_Int32 SAL_CALL OResultSetMetaData::getColumnType( sal_Int32 column ) throw(SQLException, RuntimeException, std::exception)
 132 {
 133     ::std::map<sal_Int32,sal_Int32>::iterator aFind = m_aColumnTypes.find(column);
 134     if ( aFind == m_aColumnTypes.end() )
 135     {
 136         sal_Int32 nType = 0;
 137         if(!m_bUseODBC2Types)
 138         {
 139             try
 140             {
 141                 nType = getNumColAttrib(column,SQL_DESC_CONCISE_TYPE);
 142                 if(nType == SQL_UNKNOWN_TYPE)
 143                     nType = getNumColAttrib(column, SQL_DESC_TYPE);
 144                 nType = OTools::MapOdbcType2Jdbc(nType);
 145             }
 146             catch(SQLException& ) // in this case we have an odbc 2.0 driver
 147             {
 148                 m_bUseODBC2Types = true;
 149                 nType = OTools::MapOdbcType2Jdbc(getNumColAttrib(column,SQL_DESC_CONCISE_TYPE ));
 150             }
 151         }
 152         else
 153             nType = OTools::MapOdbcType2Jdbc(getNumColAttrib(column,SQL_DESC_CONCISE_TYPE ));
 154         aFind = m_aColumnTypes.insert(::std::map<sal_Int32,sal_Int32>::value_type(column,nType)).first;
 155     }
 156
 157
 158     return aFind->second;
 159 }
 160
 161
 162 sal_Int32 SAL_CALL OResultSetMetaData::getColumnCount(  ) throw(SQLException, RuntimeException, std::exception)
 163 {
 164     if(m_nColCount != -1)
 165         return m_nColCount;
 166     sal_Int16 nNumResultCols=0;
 167     OTools::ThrowException(m_pConnection,N3SQLNumResultCols(m_aStatementHandle,&nNumResultCols),m_aStatementHandle,SQL_HANDLE_STMT,*this);
 168     return m_nColCount = nNumResultCols;
 169 }
 170
 171
 172 sal_Bool SAL_CALL OResultSetMetaData::isCaseSensitive( sal_Int32 column ) throw(SQLException, RuntimeException, std::exception)
 173 {
 174     return getNumColAttrib(column,SQL_DESC_CASE_SENSITIVE) == SQL_TRUE;
 175 }
 176
 177
 178 OUString SAL_CALL OResultSetMetaData::getSchemaName( sal_Int32 column ) throw(SQLException, RuntimeException, std::exception)
 179 {
 180     return getCharColAttrib(column,SQL_DESC_SCHEMA_NAME);
 181 }
 182
 183
 184 OUString SAL_CALL OResultSetMetaData::getColumnName( sal_Int32 column ) throw(SQLException, RuntimeException, std::exception)
 185 {
 186     return getCharColAttrib(column,SQL_DESC_NAME);
 187 }
 188
 189 OUString SAL_CALL OResultSetMetaData::getTableName( sal_Int32 column ) throw(SQLException, RuntimeException, std::exception)
 190 {
 191     return getCharColAttrib(column,SQL_DESC_TABLE_NAME);
 192 }
 193
 194 OUString SAL_CALL OResultSetMetaData::getCatalogName( sal_Int32 column ) throw(SQLException, RuntimeException, std::exception)
 195 {
 196     return getCharColAttrib(column,SQL_DESC_CATALOG_NAME);
 197 }
 198
 199 OUString SAL_CALL OResultSetMetaData::getColumnTypeName( sal_Int32 column ) throw(SQLException, RuntimeException, std::exception)
 200 {
 201     return getCharColAttrib(column,SQL_DESC_TYPE_NAME);
 202 }
 203
 204 OUString SAL_CALL OResultSetMetaData::getColumnLabel( sal_Int32 column ) throw(SQLException, RuntimeException, std::exception)
 205 {
 206     return getCharColAttrib(column,SQL_DESC_LABEL);
 207 }
 208
 209 OUString SAL_CALL OResultSetMetaData::getColumnServiceName( sal_Int32 /*column*/ ) throw(SQLException, RuntimeException, std::exception)
 210 {
 211     return OUString();
 212 }
 213
 214
 215 sal_Bool SAL_CALL OResultSetMetaData::isCurrency( sal_Int32 column ) throw(SQLException, RuntimeException, std::exception)
 216 {
 217     return getNumColAttrib(column,SQL_DESC_FIXED_PREC_SCALE) == SQL_TRUE;
 218 }
 219
 220
 221 sal_Bool SAL_CALL OResultSetMetaData::isAutoIncrement( sal_Int32 column ) throw(SQLException, RuntimeException, std::exception)
 222 {
 223     return getNumColAttrib(column,SQL_DESC_AUTO_UNIQUE_VALUE) == SQL_TRUE;
 224 }
 225
 226
 227
 228 sal_Bool SAL_CALL OResultSetMetaData::isSigned( sal_Int32 column ) throw(SQLException, RuntimeException, std::exception)
 229 {
 230     return getNumColAttrib(column,SQL_DESC_UNSIGNED) == SQL_FALSE;
 231 }
 232
 233 sal_Int32 SAL_CALL OResultSetMetaData::getPrecision( sal_Int32 column ) throw(SQLException, RuntimeException, std::exception)
 234 {
 235     sal_Int32 nType = 0;
 236     try
 237     {
 238         nType = getNumColAttrib(column,SQL_DESC_PRECISION);
 239     }
 240     catch(const SQLException& ) // in this case we have an odbc 2.0 driver
 241     {
 242         m_bUseODBC2Types = true;
 243         nType = getNumColAttrib(column,SQL_COLUMN_PRECISION );
 244     }
 245     return nType;
 246 }
 247
 248 sal_Int32 SAL_CALL OResultSetMetaData::getScale( sal_Int32 column ) throw(::com::sun::star::sdbc::SQLException, ::com::sun::star::uno::RuntimeException, std::exception)
 249 {
 250     sal_Int32 nType = 0;
 251     try
 252     {
 253         nType = getNumColAttrib(column,SQL_DESC_SCALE);
 254     }
 255     catch(const SQLException& ) // in this case we have an odbc 2.0 driver
 256     {
 257         m_bUseODBC2Types = true;
 258         nType = getNumColAttrib(column,SQL_COLUMN_SCALE );
 259     }
 260     return nType;
 261 }
 262
 263
 264 sal_Int32 SAL_CALL OResultSetMetaData::isNullable( sal_Int32 column ) throw(SQLException, RuntimeException, std::exception)
 265 {
 266     return getNumColAttrib(column,SQL_DESC_NULLABLE);
 267 }
 268
 269
 270 sal_Bool SAL_CALL OResultSetMetaData::isSearchable( sal_Int32 column ) throw(SQLException, RuntimeException, std::exception)
 271 {
 272     return getNumColAttrib(column,SQL_DESC_SEARCHABLE) != SQL_PRED_NONE;
 273 }
 274
 275
 276 sal_Bool SAL_CALL OResultSetMetaData::isReadOnly( sal_Int32 column ) throw(SQLException, RuntimeException, std::exception)
 277 {
 278     return getNumColAttrib(column,SQL_DESC_UPDATABLE) == SQL_ATTR_READONLY;
 279 }
 280
 281
 282 sal_Bool SAL_CALL OResultSetMetaData::isDefinitelyWritable( sal_Int32 column ) throw(SQLException, RuntimeException, std::exception)
 283 {
 284     return getNumColAttrib(column,SQL_DESC_UPDATABLE) == SQL_ATTR_WRITE;
 285 }
 286
 287 sal_Bool SAL_CALL OResultSetMetaData::isWritable( sal_Int32 column ) throw(SQLException, RuntimeException, std::exception)
 288 {
 289     return getNumColAttrib(column,SQL_DESC_UPDATABLE) == SQL_ATTR_WRITE;
 290 }
 291
 292
 293 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */