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Diffstat (limited to '')
| -rw-r--r-- | connectivity/source/drivers/odbc/OResultSetMetaData.cxx | 291 |
1 files changed, 291 insertions, 0 deletions
diff --git a/connectivity/source/drivers/odbc/OResultSetMetaData.cxx b/connectivity/source/drivers/odbc/OResultSetMetaData.cxx new file mode 100644 index 000000000..21b95c6a7 --- /dev/null +++ b/connectivity/source/drivers/odbc/OResultSetMetaData.cxx @@ -0,0 +1,291 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <odbc/OResultSetMetaData.hxx> +#include <odbc/OTools.hxx> + +using namespace connectivity::odbc; +using namespace com::sun::star::uno; +using namespace com::sun::star::lang; +using namespace com::sun::star::sdbc; + + +OResultSetMetaData::~OResultSetMetaData() +{ +} + +OUString OResultSetMetaData::getCharColAttrib(sal_Int32 _column,sal_Int32 ident) +{ + sal_Int32 column = _column; + if(_column <static_cast<sal_Int32>(m_vMapping.size())) // use mapping + column = m_vMapping[_column]; + + SQLSMALLINT BUFFER_LEN = 128; + std::unique_ptr<char[]> pName(new char[BUFFER_LEN+1]); + SQLSMALLINT nRealLen=0; + SQLRETURN nRet = N3SQLColAttribute(m_aStatementHandle, + static_cast<SQLUSMALLINT>(column), + static_cast<SQLUSMALLINT>(ident), + static_cast<SQLPOINTER>(pName.get()), + BUFFER_LEN, + &nRealLen, + nullptr + ); + OUString sValue; + if ( nRet == SQL_SUCCESS ) + { + if ( nRealLen < 0 ) + nRealLen = BUFFER_LEN; + sValue = OUString(pName.get(),nRealLen,m_pConnection->getTextEncoding()); + } + pName.reset(); + OTools::ThrowException(m_pConnection,nRet,m_aStatementHandle,SQL_HANDLE_STMT,*this); + if(nRealLen > BUFFER_LEN) + { + pName.reset(new char[nRealLen+1]); + nRet = N3SQLColAttribute(m_aStatementHandle, + static_cast<SQLUSMALLINT>(column), + static_cast<SQLUSMALLINT>(ident), + static_cast<SQLPOINTER>(pName.get()), + nRealLen, + &nRealLen, + nullptr + ); + if ( nRet == SQL_SUCCESS && nRealLen > 0) + sValue = OUString(pName.get(),nRealLen,m_pConnection->getTextEncoding()); + OTools::ThrowException(m_pConnection,nRet,m_aStatementHandle,SQL_HANDLE_STMT,*this); + } + + return sValue; +} + +SQLLEN OResultSetMetaData::getNumColAttrib(OConnection const * _pConnection + ,SQLHANDLE _aStatementHandle + ,const css::uno::Reference< css::uno::XInterface >& _xInterface + ,sal_Int32 _column + ,sal_Int32 _ident) +{ + SQLLEN nValue=0; + OTools::ThrowException(_pConnection,(*reinterpret_cast<T3SQLColAttribute>(_pConnection->getOdbcFunction(ODBC3SQLFunctionId::ColAttribute)))(_aStatementHandle, + static_cast<SQLUSMALLINT>(_column), + static_cast<SQLUSMALLINT>(_ident), + nullptr, + 0, + nullptr, + &nValue),_aStatementHandle,SQL_HANDLE_STMT,_xInterface); + return nValue; +} + +sal_Int32 OResultSetMetaData::getNumColAttrib(sal_Int32 _column,sal_Int32 ident) +{ + sal_Int32 column = _column; + if(_column < static_cast<sal_Int32>(m_vMapping.size())) // use mapping + column = m_vMapping[_column]; + + return getNumColAttrib(m_pConnection,m_aStatementHandle,*this,column,ident); +} + +sal_Int32 SAL_CALL OResultSetMetaData::getColumnDisplaySize( sal_Int32 column ) +{ + return getNumColAttrib(column,SQL_DESC_DISPLAY_SIZE); +} + +SQLSMALLINT OResultSetMetaData::getColumnODBCType(OConnection const * _pConnection + ,SQLHANDLE _aStatementHandle + ,const css::uno::Reference< css::uno::XInterface >& _xInterface + ,sal_Int32 column) +{ + SQLSMALLINT nType = 0; + try + { + nType = static_cast<SQLSMALLINT>(getNumColAttrib(_pConnection,_aStatementHandle,_xInterface,column,SQL_DESC_CONCISE_TYPE)); + if(nType == SQL_UNKNOWN_TYPE) + nType = static_cast<SQLSMALLINT>(getNumColAttrib(_pConnection,_aStatementHandle,_xInterface,column, SQL_DESC_TYPE)); + } + catch(SQLException& ) // in this case we have an odbc 2.0 driver + { + nType = static_cast<SQLSMALLINT>(getNumColAttrib(_pConnection,_aStatementHandle,_xInterface,column,SQL_DESC_CONCISE_TYPE )); + } + + return nType; +} + +sal_Int32 SAL_CALL OResultSetMetaData::getColumnType( sal_Int32 column ) +{ + std::map<sal_Int32,sal_Int32>::iterator aFind = m_aColumnTypes.find(column); + if ( aFind == m_aColumnTypes.end() ) + { + sal_Int32 nType = 0; + if(!m_bUseODBC2Types) + { + try + { + nType = getNumColAttrib(column,SQL_DESC_CONCISE_TYPE); + if(nType == SQL_UNKNOWN_TYPE) + nType = getNumColAttrib(column, SQL_DESC_TYPE); + nType = OTools::MapOdbcType2Jdbc(nType); + } + catch(SQLException& ) // in this case we have an odbc 2.0 driver + { + m_bUseODBC2Types = true; + nType = OTools::MapOdbcType2Jdbc(getNumColAttrib(column,SQL_DESC_CONCISE_TYPE )); + } + } + else + nType = OTools::MapOdbcType2Jdbc(getNumColAttrib(column,SQL_DESC_CONCISE_TYPE )); + aFind = m_aColumnTypes.emplace(column,nType).first; + } + + + return aFind->second; +} + + +sal_Int32 SAL_CALL OResultSetMetaData::getColumnCount( ) +{ + if(m_nColCount != -1) + return m_nColCount; + sal_Int16 nNumResultCols=0; + OTools::ThrowException(m_pConnection,N3SQLNumResultCols(m_aStatementHandle,&nNumResultCols),m_aStatementHandle,SQL_HANDLE_STMT,*this); + m_nColCount = nNumResultCols; + return m_nColCount; +} + + +sal_Bool SAL_CALL OResultSetMetaData::isCaseSensitive( sal_Int32 column ) +{ + return getNumColAttrib(column,SQL_DESC_CASE_SENSITIVE) == SQL_TRUE; +} + + +OUString SAL_CALL OResultSetMetaData::getSchemaName( sal_Int32 column ) +{ + return getCharColAttrib(column,SQL_DESC_SCHEMA_NAME); +} + + +OUString SAL_CALL OResultSetMetaData::getColumnName( sal_Int32 column ) +{ + return getCharColAttrib(column,SQL_DESC_NAME); +} + +OUString SAL_CALL OResultSetMetaData::getTableName( sal_Int32 column ) +{ + return getCharColAttrib(column,SQL_DESC_TABLE_NAME); +} + +OUString SAL_CALL OResultSetMetaData::getCatalogName( sal_Int32 column ) +{ + return getCharColAttrib(column,SQL_DESC_CATALOG_NAME); +} + +OUString SAL_CALL OResultSetMetaData::getColumnTypeName( sal_Int32 column ) +{ + return getCharColAttrib(column,SQL_DESC_TYPE_NAME); +} + +OUString SAL_CALL OResultSetMetaData::getColumnLabel( sal_Int32 column ) +{ + return getCharColAttrib(column,SQL_DESC_LABEL); +} + +OUString SAL_CALL OResultSetMetaData::getColumnServiceName( sal_Int32 /*column*/ ) +{ + return OUString(); +} + + +sal_Bool SAL_CALL OResultSetMetaData::isCurrency( sal_Int32 column ) +{ + return getNumColAttrib(column,SQL_DESC_FIXED_PREC_SCALE) == SQL_TRUE; +} + + +sal_Bool SAL_CALL OResultSetMetaData::isAutoIncrement( sal_Int32 column ) +{ + return getNumColAttrib(column,SQL_DESC_AUTO_UNIQUE_VALUE) == SQL_TRUE; +} + + +sal_Bool SAL_CALL OResultSetMetaData::isSigned( sal_Int32 column ) +{ + return getNumColAttrib(column,SQL_DESC_UNSIGNED) == SQL_FALSE; +} + +sal_Int32 SAL_CALL OResultSetMetaData::getPrecision( sal_Int32 column ) +{ + sal_Int32 nType = 0; + try + { + nType = getNumColAttrib(column,SQL_DESC_PRECISION); + } + catch(const SQLException& ) // in this case we have an odbc 2.0 driver + { + m_bUseODBC2Types = true; + nType = getNumColAttrib(column,SQL_COLUMN_PRECISION ); + } + return nType; +} + +sal_Int32 SAL_CALL OResultSetMetaData::getScale( sal_Int32 column ) +{ + sal_Int32 nType = 0; + try + { + nType = getNumColAttrib(column,SQL_DESC_SCALE); + } + catch(const SQLException& ) // in this case we have an odbc 2.0 driver + { + m_bUseODBC2Types = true; + nType = getNumColAttrib(column,SQL_COLUMN_SCALE ); + } + return nType; +} + + +sal_Int32 SAL_CALL OResultSetMetaData::isNullable( sal_Int32 column ) +{ + return getNumColAttrib(column,SQL_DESC_NULLABLE); +} + + +sal_Bool SAL_CALL OResultSetMetaData::isSearchable( sal_Int32 column ) +{ + return getNumColAttrib(column,SQL_DESC_SEARCHABLE) != SQL_PRED_NONE; +} + + +sal_Bool SAL_CALL OResultSetMetaData::isReadOnly( sal_Int32 column ) +{ + return getNumColAttrib(column,SQL_DESC_UPDATABLE) == SQL_ATTR_READONLY; +} + + +sal_Bool SAL_CALL OResultSetMetaData::isDefinitelyWritable( sal_Int32 column ) +{ + return getNumColAttrib(column,SQL_DESC_UPDATABLE) == SQL_ATTR_WRITE; +} + +sal_Bool SAL_CALL OResultSetMetaData::isWritable( sal_Int32 column ) +{ + return getNumColAttrib(column,SQL_DESC_UPDATABLE) == SQL_ATTR_WRITE; +} + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |