xref: /trunk/main/connectivity/source/inc/dbase/DTable.hxx (revision caf5cd79)

/**************************************************************
 *
 * 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
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 *************************************************************/



#ifndef _CONNECTIVITY_DBASE_TABLE_HXX_
#define _CONNECTIVITY_DBASE_TABLE_HXX_

#include "file/FTable.hxx"
#include "connectivity/sdbcx/VColumn.hxx"
#include "connectivity/CommonTools.hxx"
#include <tools/urlobj.hxx>


namespace connectivity
{
	namespace dbase
	{
		typedef file::OFileTable ODbaseTable_BASE;
		class ODbaseConnection;

		typedef ::std::map< ::rtl::OUString,
						::com::sun::star::uno::Reference< ::com::sun::star::container::XNamed>, comphelper::UStringMixLess > OContainer;

		class ODbaseTable :	public ODbaseTable_BASE
		{
			// der Typ einer dBase datei wird mit dem ersten Byte bestimmt
		public:
			enum DBFType  {	dBaseIII         = 0x03,
							dBaseIV          = 0x04,
							dBaseV	         = 0x05,
                            VisualFoxPro	 = 0x30,
                            VisualFoxProAuto = 0x31, // Visual FoxPro w. AutoIncrement field
							dBaseFS          = 0x43,
							dBaseFSMemo      = 0xB3,
							dBaseIIIMemo     = 0x83,
							dBaseIVMemo      = 0x8B,
							dBaseIVMemoSQL   = 0x8E,
							FoxProMemo       = 0xF5
						  };
			enum DBFMemoType {	MemodBaseIII = 0,
								MemodBaseIV,
								MemoFoxPro
							};

		private:
			struct DBFHeader {                       /* Kopfsatz-Struktur            */
								DBFType	db_typ;		                    /* Dateityp						*/
								sal_uInt8    db_aedat[3];                    /* Datum der letzen Aenderung   */
																		/* JJ MM TT                     */
								sal_uInt32   db_anz;                         /* Anzahl der Saetze            */
								sal_uInt16  db_kopf;                        /* laenge Kopfsatz-Struktur     */
								sal_uInt16  db_slng;                        /* laenge der Daten-Saetze      */
								sal_uInt8    db_frei[20];                    /* reserviert                   */
							};
			struct DBFColumn {                       /* Feldbezeichner               */
								sal_uInt8    db_fnm[11];                     /* Feldname                     */
								sal_uInt8    db_typ;                         /* Feldtyp                      */
								sal_uInt32  db_adr;                         /* Feldadresse                  */
								sal_uInt8    db_flng;                        /* Feldlaenge                   */
								sal_uInt8    db_dez;                         /* Dezimalstellen fuer N        */
								sal_uInt8    db_frei2[14];                   /* reserviert                   */
							};
			struct DBFMemoHeader
							{
								DBFMemoType	db_typ;						/* Dateityp						*/
                                sal_uInt32  db_next;                        /* naechster freier Block       */
                                sal_uInt16  db_size;                        /* Blockgroesse: dBase 3 fest   */
							};

			::std::vector<sal_Int32> m_aTypes;		// holds all type for columns just to avoid to ask the propertyset
			::std::vector<sal_Int32> m_aPrecisions;	// same as aboth
			::std::vector<sal_Int32> m_aScales;
            ::std::vector<sal_Int32> m_aRealFieldLengths;
			DBFHeader		m_aHeader;
			DBFMemoHeader	m_aMemoHeader;
			SvStream*		m_pMemoStream;
            rtl_TextEncoding m_eEncoding;
			sal_Bool		m_bWriteableMemo;

			void alterColumn(sal_Int32 index,
							 const ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet>& descriptor ,
							 const ::com::sun::star::uno::Reference< ::com::sun::star::sdbcx::XDataDescriptorFactory>& xOldColumn );
			void readHeader();
			void fillColumns();
			String createTempFile();
			void copyData(ODbaseTable* _pNewTable,sal_Int32 _nPos);
			sal_Bool CreateFile(const INetURLObject& aFile, sal_Bool& bCreateMemo);
			sal_Bool CreateMemoFile(const INetURLObject& aFile);
			sal_Bool HasMemoFields() const { return m_aHeader.db_typ > dBaseIV;}
			sal_Bool ReadMemoHeader();
			sal_Bool ReadMemo(sal_uIntPtr nBlockNo, ORowSetValue& aVariable);

			sal_Bool WriteMemo(ORowSetValue& aVariable, sal_uIntPtr& rBlockNr);
			sal_Bool WriteBuffer();
			sal_Bool UpdateBuffer(OValueRefVector& rRow, OValueRefRow pOrgRow,const ::com::sun::star::uno::Reference< ::com::sun::star::container::XIndexAccess>& _xCols);
			::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet> isUniqueByColumnName(sal_Int32 _nColumnPos);
			void AllocBuffer();

			void throwInvalidDbaseFormat();
			void SAL_CALL renameImpl( const ::rtl::OUString& newName ) throw(::com::sun::star::sdbc::SQLException, ::com::sun::star::container::ElementExistException, ::com::sun::star::uno::RuntimeException);
			void throwInvalidColumnType(const sal_uInt16 _nErrorId,const ::rtl::OUString& _sColumnName);

		protected:
			virtual void FileClose();
//			using ::connectivity::sdbcx::OTableDescriptor_BASE::rBHelper;

		public:
			virtual void refreshColumns();
			virtual void refreshIndexes();

		public:
			ODbaseTable( sdbcx::OCollection* _pTables,ODbaseConnection* _pConnection);
			ODbaseTable( sdbcx::OCollection* _pTables,ODbaseConnection* _pConnection,
					const ::rtl::OUString& _Name,
					const ::rtl::OUString& _Type,
					const ::rtl::OUString& _Description = ::rtl::OUString(),
					const ::rtl::OUString& _SchemaName = ::rtl::OUString(),
					const ::rtl::OUString& _CatalogName = ::rtl::OUString()
				);

			void construct(); // can throw any exception

			virtual sal_Int32 getCurrentLastPos() const;
			virtual sal_Bool seekRow(IResultSetHelper::Movement eCursorPosition, sal_Int32 nOffset, sal_Int32& nCurPos);
			virtual sal_Bool fetchRow(OValueRefRow& _rRow,const OSQLColumns& _rCols, sal_Bool _bUseTableDefs,sal_Bool bRetrieveData);

			virtual ::com::sun::star::uno::Any SAL_CALL queryInterface( const ::com::sun::star::uno::Type & rType ) throw(::com::sun::star::uno::RuntimeException);
			//XTypeProvider
			virtual ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Type > SAL_CALL getTypes(  ) throw(::com::sun::star::uno::RuntimeException);
			virtual void SAL_CALL disposing(void);

			// com::sun::star::lang::XUnoTunnel
			virtual sal_Int64 SAL_CALL getSomething( const ::com::sun::star::uno::Sequence< sal_Int8 >& aIdentifier ) throw(::com::sun::star::uno::RuntimeException);
			static ::com::sun::star::uno::Sequence< sal_Int8 > getUnoTunnelImplementationId();
			// XAlterTable
            virtual void SAL_CALL alterColumnByName( const ::rtl::OUString& colName, const ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet >& descriptor ) throw(::com::sun::star::sdbc::SQLException, ::com::sun::star::container::NoSuchElementException, ::com::sun::star::uno::RuntimeException);
            virtual void SAL_CALL alterColumnByIndex( sal_Int32 index, const ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet >& descriptor ) throw(::com::sun::star::sdbc::SQLException, ::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);
			// XRename
			virtual void SAL_CALL rename( const ::rtl::OUString& newName ) throw(::com::sun::star::sdbc::SQLException, ::com::sun::star::container::ElementExistException, ::com::sun::star::uno::RuntimeException);

			sal_Bool	DropImpl();
			sal_Bool	CreateImpl();


			virtual sal_Bool InsertRow(OValueRefVector& rRow, sal_Bool bFlush,const ::com::sun::star::uno::Reference< ::com::sun::star::container::XIndexAccess>& _xCols);
			virtual sal_Bool DeleteRow(const OSQLColumns& _rCols);
			virtual sal_Bool UpdateRow(OValueRefVector& rRow, OValueRefRow& pOrgRow,const ::com::sun::star::uno::Reference< ::com::sun::star::container::XIndexAccess>& _xCols);

			virtual void addColumn(const ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet>& descriptor);
			virtual void dropColumn(sal_Int32 _nPos);

			static String	getEntry(file::OConnection* _pConnection,const ::rtl::OUString& _sURL );
			static sal_Bool		Drop_Static(const ::rtl::OUString& _sUrl,sal_Bool _bHasMemoFields,sdbcx::OCollection* _pIndexes );

			virtual void refreshHeader();

			virtual ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XDatabaseMetaData> getMetaData() const;
		};
	}
}
#endif // _CONNECTIVITY_DBASE_TABLE_HXX_