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Diffstat (limited to '')
| -rw-r--r-- | connectivity/source/inc/odbc/OResultSet.hxx | 354 |
1 files changed, 354 insertions, 0 deletions
diff --git a/connectivity/source/inc/odbc/OResultSet.hxx b/connectivity/source/inc/odbc/OResultSet.hxx new file mode 100644 index 000000000..6de7adc28 --- /dev/null +++ b/connectivity/source/inc/odbc/OResultSet.hxx @@ -0,0 +1,354 @@ +/* -*- 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 . + */ + +#pragma once + +#include <com/sun/star/sdbc/FetchDirection.hpp> +#include <com/sun/star/sdbc/XResultSet.hpp> +#include <com/sun/star/sdbc/XRow.hpp> +#include <com/sun/star/sdbc/XResultSetMetaDataSupplier.hpp> +#include <com/sun/star/sdbc/XCloseable.hpp> +#include <com/sun/star/sdbc/XColumnLocate.hpp> +#include <com/sun/star/util/XCancellable.hpp> +#include <com/sun/star/sdbc/XWarningsSupplier.hpp> +#include <com/sun/star/sdbc/XResultSetUpdate.hpp> +#include <com/sun/star/sdbc/XRowUpdate.hpp> +#include <com/sun/star/sdbcx/XRowLocate.hpp> +#include <com/sun/star/sdbcx/XDeleteRows.hpp> +#include <cppuhelper/compbase.hxx> +#include <comphelper/proparrhlp.hxx> +#include <odbc/OFunctions.hxx> +#include <odbc/OStatement.hxx> +#include <odbc/odbcbasedllapi.hxx> +#include <connectivity/CommonTools.hxx> +#include <connectivity/FValue.hxx> +#include <TSkipDeletedSet.hxx> +#include <memory> + +namespace connectivity::odbc + { + + /* + ** java_sql_ResultSet + */ + typedef ::cppu::WeakComponentImplHelper< css::sdbc::XResultSet, + css::sdbc::XRow, + css::sdbc::XResultSetMetaDataSupplier, + css::util::XCancellable, + css::sdbc::XWarningsSupplier, + css::sdbc::XResultSetUpdate, + css::sdbc::XRowUpdate, + css::sdbcx::XRowLocate, + css::sdbcx::XDeleteRows, + css::sdbc::XCloseable, + css::sdbc::XColumnLocate, + css::lang::XServiceInfo> OResultSet_BASE; + + + typedef std::pair<sal_Int64,sal_Int32> TVoidPtr; + typedef std::allocator< TVoidPtr > TVoidAlloc; + typedef std::vector<TVoidPtr> TVoidVector; + /// Functor object for class ZZ returntype is void + struct OOO_DLLPUBLIC_ODBCBASE TBookmarkPosMapCompare + { + bool operator()( const css::uno::Sequence<sal_Int8>& _rLH, + const css::uno::Sequence<sal_Int8>& _rRH) const + { + if(_rLH.getLength() == _rRH.getLength()) + { + sal_Int32 nCount = _rLH.getLength(); + if(nCount != 4) + { + const sal_Int8* pLHBack = _rLH.getConstArray() + nCount - 1; + const sal_Int8* pRHBack = _rRH.getConstArray() + nCount - 1; + + sal_Int32 i; + for(i=0;i < nCount;++i,--pLHBack,--pRHBack) + { + if(!(*pLHBack) && *pRHBack) + return true; + else if(*pLHBack && !(*pRHBack)) + return false; + } + for(i=0,++pLHBack,++pRHBack;i < nCount;++pLHBack,++pRHBack,++i) + if(*pLHBack < *pRHBack) + return true; + return false; + } + else + return *reinterpret_cast<const sal_Int32*>(_rLH.getConstArray()) < *reinterpret_cast<const sal_Int32*>(_rRH.getConstArray()); + + } + else + return _rLH.getLength() < _rRH.getLength(); + } + }; + + typedef std::map< css::uno::Sequence<sal_Int8>, sal_Int32,TBookmarkPosMapCompare > TBookmarkPosMap; + + class OOO_DLLPUBLIC_ODBCBASE OResultSet : + public cppu::BaseMutex, + public ::connectivity::IResultSetHelper, + public OResultSet_BASE, + public ::cppu::OPropertySetHelper, + public ::comphelper::OPropertyArrayUsageHelper<OResultSet> + { + protected: + TBookmarkPosMap m_aPosToBookmarks; + // used top hold the information about the value and the datatype to save calls to metadata + typedef std::vector<ORowSetValue> TDataRow; + + TVoidVector m_aBindVector; + std::vector<SQLLEN> m_aLengthVector; + std::map<sal_Int32,SWORD> m_aODBCColumnTypes; + + // In baseline ODBC, SQLGetData can only be called on monotonically increasing column numbers. + // additionally, any variable-length data can be fetched only once (possibly in parts); + // after that, SQLGetData returns SQL_NO_DATA. + // In order to insulate our callers from these restrictions, + // we cache the current row in m_aRow. + // If the driver claims to support the GD_ANY_ORDER extension, + // we read and cache only the columns requested by a caller. + // Else, we read and cache all columns whose number is <= a requested column. + // m_aRow[colNumber].getBound() says if it contains an up-to-date value or not. + TDataRow m_aRow; + bool m_bFetchDataInOrder; + SQLHANDLE m_aStatementHandle; + SQLHANDLE m_aConnectionHandle; + OStatement_Base* m_pStatement; + std::unique_ptr<OSkipDeletedSet> m_pSkipDeletedSet; + css::uno::Reference< css::uno::XInterface> m_xStatement; + css::uno::Reference< css::sdbc::XResultSetMetaData> m_xMetaData; + std::unique_ptr<SQLUSMALLINT[]> m_pRowStatusArray; + rtl_TextEncoding m_nTextEncoding; + sal_Int32 m_nRowPos; + mutable sal_uInt32 m_nUseBookmarks; + SQLRETURN m_nCurrentFetchState; + bool m_bWasNull; + bool m_bEOF; // after last record + bool m_bRowInserted; + bool m_bRowDeleted; + bool m_bUseFetchScroll; + + bool isBookmarkable() const; + sal_Int32 getResultSetConcurrency() const; + sal_Int32 getResultSetType() const; + static sal_Int32 getFetchDirection() { return css::sdbc::FetchDirection::FORWARD; } + sal_Int32 getFetchSize() const; + OUString getCursorName() const; + template < typename T, SQLINTEGER BufferLength > T getStmtOption (SQLINTEGER fOption) const; + + void setFetchDirection(sal_Int32 _par0); + void setFetchSize(sal_Int32 _par0); + template < typename T, SQLINTEGER BufferLength > SQLRETURN setStmtOption (SQLINTEGER fOption, T value) const; + + + void ensureCacheForColumn(sal_Int32 columnIndex); + void invalidateCache(); + void fillColumn(sal_Int32 _nToColumn); + void allocBuffer(); + void releaseBuffer(); + /// @throws css::sdbc::SQLException + /// @throws css::uno::RuntimeException + void updateValue(sal_Int32 columnIndex, SQLSMALLINT _nType, void const * _pValue); + void fillNeededData(SQLRETURN _nRet); + bool moveImpl(IResultSetHelper::Movement _eCursorPosition, sal_Int32 _nOffset); + TVoidPtr allocBindColumn(sal_Int32 _nType,sal_Int32 _nColumnIndex); + SQLRETURN unbind(bool _bUnbindHandle = true); + SWORD impl_getColumnType_nothrow(sal_Int32 columnIndex); + + // helper to implement XRow::getXXX in simple cases + template < typename T > T getValue( sal_Int32 columnIndex ); + // impl_getXXX are the functions that do the actual fetching from ODBC, ignoring the cache + // for simple cases + template < typename T > T impl_getValue( const sal_Int32 _nColumnIndex, SQLSMALLINT nType ); + // these cases need some special treatment + /// @throws css::sdbc::SQLException + /// @throws css::uno::RuntimeException + bool impl_getBoolean( sal_Int32 columnIndex ); + /// @throws css::sdbc::SQLException + /// @throws css::uno::RuntimeException + css::uno::Sequence< sal_Int8 > impl_getBytes( sal_Int32 columnIndex ); + /// @throws css::sdbc::SQLException + /// @throws css::uno::RuntimeException + css::util::Date impl_getDate( sal_Int32 columnIndex ); + /// @throws css::sdbc::SQLException + /// @throws css::uno::RuntimeException + css::util::Time impl_getTime( sal_Int32 columnIndex ); + /// @throws css::sdbc::SQLException + /// @throws css::uno::RuntimeException + css::util::DateTime impl_getTimestamp( sal_Int32 columnIndex ); + /// @throws css::sdbc::SQLException + /// @throws css::uno::RuntimeException + sal_Int64 impl_getLong( sal_Int32 columnIndex ); + /// @throws css::sdbc::SQLException + /// @throws css::uno::RuntimeException + OUString impl_getString( sal_Int32 columnIndex ); + /// @throws css::sdbc::SQLException + /// @throws css::uno::RuntimeException + css::uno::Sequence<sal_Int8> impl_getBookmark( ); + + + // OPropertyArrayUsageHelper + virtual ::cppu::IPropertyArrayHelper* createArrayHelper( ) const override; + // OPropertySetHelper + virtual ::cppu::IPropertyArrayHelper & SAL_CALL getInfoHelper() override; + + virtual sal_Bool SAL_CALL convertFastPropertyValue( + css::uno::Any & rConvertedValue, + css::uno::Any & rOldValue, + sal_Int32 nHandle, + const css::uno::Any& rValue ) override; + virtual void SAL_CALL setFastPropertyValue_NoBroadcast( + sal_Int32 nHandle, + const css::uno::Any& rValue + ) override; + virtual void SAL_CALL getFastPropertyValue( + css::uno::Any& rValue, + sal_Int32 nHandle + ) const override; + public: + DECLARE_SERVICE_INFO(); + // A ctor that is needed for returning the object + OResultSet( SQLHANDLE _pStatementHandle,OStatement_Base* pStmt); + virtual ~OResultSet() override; + + void construct(); + + oslGenericFunction getOdbcFunction(ODBC3SQLFunctionId _nIndex) const + { + return m_pStatement->getOdbcFunction(_nIndex); + } + + css::uno::Reference< css::uno::XInterface > operator *() + { + return css::uno::Reference< css::uno::XInterface >(*static_cast<OResultSet_BASE*>(this)); + } + + void setMetaData(const css::uno::Reference< css::sdbc::XResultSetMetaData>& _xMetaData) { m_xMetaData = _xMetaData;} + + // ::cppu::OComponentHelper + virtual void SAL_CALL disposing() override; + // XInterface + virtual css::uno::Any SAL_CALL queryInterface( const css::uno::Type & rType ) override; + virtual void SAL_CALL acquire() noexcept override; + virtual void SAL_CALL release() noexcept override; + //XTypeProvider + virtual css::uno::Sequence< css::uno::Type > SAL_CALL getTypes( ) override; + // XPropertySet + virtual css::uno::Reference< css::beans::XPropertySetInfo > SAL_CALL getPropertySetInfo( ) override; + // XResultSet + virtual sal_Bool SAL_CALL next( ) override; + virtual sal_Bool SAL_CALL isBeforeFirst( ) override; + virtual sal_Bool SAL_CALL isAfterLast( ) override; + virtual sal_Bool SAL_CALL isFirst( ) override; + virtual sal_Bool SAL_CALL isLast( ) override; + virtual void SAL_CALL beforeFirst( ) override; + virtual void SAL_CALL afterLast( ) override; + virtual sal_Bool SAL_CALL first( ) override; + virtual sal_Bool SAL_CALL last( ) override; + virtual sal_Int32 SAL_CALL getRow( ) override; + virtual sal_Bool SAL_CALL absolute( sal_Int32 row ) override; + virtual sal_Bool SAL_CALL relative( sal_Int32 rows ) override; + virtual sal_Bool SAL_CALL previous( ) override; + virtual void SAL_CALL refreshRow( ) override; + virtual sal_Bool SAL_CALL rowUpdated( ) override; + virtual sal_Bool SAL_CALL rowInserted( ) override; + virtual sal_Bool SAL_CALL rowDeleted( ) override; + virtual css::uno::Reference< css::uno::XInterface > SAL_CALL getStatement( ) override; + // XRow + virtual sal_Bool SAL_CALL wasNull( ) override; + virtual OUString SAL_CALL getString( sal_Int32 columnIndex ) override; + virtual sal_Bool SAL_CALL getBoolean( sal_Int32 columnIndex ) override; + virtual sal_Int8 SAL_CALL getByte( sal_Int32 columnIndex ) override; + virtual sal_Int16 SAL_CALL getShort( sal_Int32 columnIndex ) override; + virtual sal_Int32 SAL_CALL getInt( sal_Int32 columnIndex ) override; + virtual sal_Int64 SAL_CALL getLong( sal_Int32 columnIndex ) override; + virtual float SAL_CALL getFloat( sal_Int32 columnIndex ) override; + virtual double SAL_CALL getDouble( sal_Int32 columnIndex ) override; + virtual css::uno::Sequence< sal_Int8 > SAL_CALL getBytes( sal_Int32 columnIndex ) override; + virtual css::util::Date SAL_CALL getDate( sal_Int32 columnIndex ) override; + virtual css::util::Time SAL_CALL getTime( sal_Int32 columnIndex ) override; + virtual css::util::DateTime SAL_CALL getTimestamp( sal_Int32 columnIndex ) override; + virtual css::uno::Reference< css::io::XInputStream > SAL_CALL getBinaryStream( sal_Int32 columnIndex ) override; + virtual css::uno::Reference< css::io::XInputStream > SAL_CALL getCharacterStream( sal_Int32 columnIndex ) override; + virtual css::uno::Any SAL_CALL getObject( sal_Int32 columnIndex, const css::uno::Reference< css::container::XNameAccess >& typeMap ) override; + virtual css::uno::Reference< css::sdbc::XRef > SAL_CALL getRef( sal_Int32 columnIndex ) override; + virtual css::uno::Reference< css::sdbc::XBlob > SAL_CALL getBlob( sal_Int32 columnIndex ) override; + virtual css::uno::Reference< css::sdbc::XClob > SAL_CALL getClob( sal_Int32 columnIndex ) override; + virtual css::uno::Reference< css::sdbc::XArray > SAL_CALL getArray( sal_Int32 columnIndex ) override; + // XResultSetMetaDataSupplier + virtual css::uno::Reference< css::sdbc::XResultSetMetaData > SAL_CALL getMetaData( ) override; + // XCancellable + virtual void SAL_CALL cancel( ) override; + // XCloseable + virtual void SAL_CALL close( ) override; + // XWarningsSupplier + virtual css::uno::Any SAL_CALL getWarnings( ) override; + virtual void SAL_CALL clearWarnings( ) override; + // XResultSetUpdate + virtual void SAL_CALL insertRow( ) override; + virtual void SAL_CALL updateRow( ) override; + virtual void SAL_CALL deleteRow( ) override; + virtual void SAL_CALL cancelRowUpdates( ) override; + virtual void SAL_CALL moveToInsertRow( ) override; + virtual void SAL_CALL moveToCurrentRow( ) override; + // XRowUpdate + virtual void SAL_CALL updateNull( sal_Int32 columnIndex ) override; + virtual void SAL_CALL updateBoolean( sal_Int32 columnIndex, sal_Bool x ) override; + virtual void SAL_CALL updateByte( sal_Int32 columnIndex, sal_Int8 x ) override; + virtual void SAL_CALL updateShort( sal_Int32 columnIndex, sal_Int16 x ) override; + virtual void SAL_CALL updateInt( sal_Int32 columnIndex, sal_Int32 x ) override; + virtual void SAL_CALL updateLong( sal_Int32 columnIndex, sal_Int64 x ) override; + virtual void SAL_CALL updateFloat( sal_Int32 columnIndex, float x ) override; + virtual void SAL_CALL updateDouble( sal_Int32 columnIndex, double x ) override; + virtual void SAL_CALL updateString( sal_Int32 columnIndex, const OUString& x ) override; + virtual void SAL_CALL updateBytes( sal_Int32 columnIndex, const css::uno::Sequence< sal_Int8 >& x ) override; + virtual void SAL_CALL updateDate( sal_Int32 columnIndex, const css::util::Date& x ) override; + virtual void SAL_CALL updateTime( sal_Int32 columnIndex, const css::util::Time& x ) override; + virtual void SAL_CALL updateTimestamp( sal_Int32 columnIndex, const css::util::DateTime& x ) override; + virtual void SAL_CALL updateBinaryStream( sal_Int32 columnIndex, const css::uno::Reference< css::io::XInputStream >& x, sal_Int32 length ) override; + virtual void SAL_CALL updateCharacterStream( sal_Int32 columnIndex, const css::uno::Reference< css::io::XInputStream >& x, sal_Int32 length ) override; + virtual void SAL_CALL updateObject( sal_Int32 columnIndex, const css::uno::Any& x ) override; + virtual void SAL_CALL updateNumericObject( sal_Int32 columnIndex, const css::uno::Any& x, sal_Int32 scale ) override; + // XColumnLocate + virtual sal_Int32 SAL_CALL findColumn( const OUString& columnName ) override; + // XRowLocate + virtual css::uno::Any SAL_CALL getBookmark( ) override; + virtual sal_Bool SAL_CALL moveToBookmark( const css::uno::Any& bookmark ) override; + virtual sal_Bool SAL_CALL moveRelativeToBookmark( const css::uno::Any& bookmark, sal_Int32 rows ) override; + virtual sal_Int32 SAL_CALL compareBookmarks( const css::uno::Any& first, const css::uno::Any& second ) override; + virtual sal_Bool SAL_CALL hasOrderedBookmarks( ) override; + virtual sal_Int32 SAL_CALL hashBookmark( const css::uno::Any& bookmark ) override; + // XDeleteRows + virtual css::uno::Sequence< sal_Int32 > SAL_CALL deleteRows( const css::uno::Sequence< css::uno::Any >& rows ) override; + + // IResultSetHelper + virtual bool move(IResultSetHelper::Movement _eCursorPosition, sal_Int32 _nOffset, bool _bRetrieveData) override; + virtual sal_Int32 getDriverPos() const override; + virtual bool isRowDeleted() const override; + + protected: + using OPropertySetHelper::getFastPropertyValue; + }; + +} + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |