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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 : #ifndef DBACCESS_CORE_API_ROWSETCACHE_HXX
20 : #define DBACCESS_CORE_API_ROWSETCACHE_HXX
21 :
22 : #include <connectivity/CommonTools.hxx>
23 : #include <com/sun/star/lang/XServiceInfo.hpp>
24 : #include <com/sun/star/sdbc/XPreparedStatement.hpp>
25 : #include <com/sun/star/sdbc/XConnection.hpp>
26 : #include <com/sun/star/sdb/XSingleSelectQueryAnalyzer.hpp>
27 : #include <com/sun/star/sdbc/XResultSetMetaDataSupplier.hpp>
28 : #include <com/sun/star/sdbc/XWarningsSupplier.hpp>
29 : #include <com/sun/star/sdb/XResultSetAccess.hpp>
30 : #include <com/sun/star/sdbc/XRow.hpp>
31 : #include <com/sun/star/sdbc/XColumnLocate.hpp>
32 : #include <com/sun/star/sdbcx/XRowLocate.hpp>
33 : #include <com/sun/star/sdbc/XRowUpdate.hpp>
34 : #include <com/sun/star/sdbc/XResultSetUpdate.hpp>
35 : #include <com/sun/star/sdb/XRowSetApproveBroadcaster.hpp>
36 : #include <com/sun/star/sdbc/ResultSetType.hpp>
37 : #include <com/sun/star/sdbcx/XDeleteRows.hpp>
38 : #include <cppuhelper/compbase11.hxx>
39 : #include <comphelper/propertycontainer.hxx>
40 : #include <comphelper/componentcontext.hxx>
41 : #include <cppuhelper/implbase5.hxx>
42 : #include <comphelper/proparrhlp.hxx>
43 : #include "RowSetRow.hxx"
44 : #include "RowSetCacheIterator.hxx"
45 :
46 : namespace connectivity
47 : {
48 : class OSQLParseNode;
49 : }
50 : namespace dbaccess
51 : {
52 : class OCacheSet;
53 :
54 : class ORowSetCache
55 : {
56 : friend class ORowSetBase;
57 : friend class ORowSet;
58 : friend class ORowSetClone;
59 : friend class ORowSetCacheIterator;
60 :
61 : typedef ::std::vector< TORowSetOldRowHelperRef > TOldRowSetRows;
62 :
63 : ::std::map<sal_Int32,sal_Int32> m_aKeyColumns;
64 : //the set can be static, bookmarkable or keyset
65 : ::com::sun::star::uno::WeakReference< ::com::sun::star::sdbc::XResultSet> m_xSet;
66 : ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XResultSetMetaData > m_xMetaData; // must be before m_aInsertRow
67 : ::comphelper::ComponentContext m_aContext;
68 :
69 : ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XRow> m_xCacheSet;
70 :
71 : OCacheSet* m_pCacheSet; // is a bookmarkable, keyset or static resultset
72 : ORowSetMatrix* m_pMatrix; // represent the table struct
73 : ORowSetMatrix::iterator m_aMatrixIter; // represent a row of the table
74 : ORowSetMatrix::iterator m_aMatrixEnd; // present the row behind the last row of the table
75 : ORowSetCacheMap m_aCacheIterators;
76 : TOldRowSetRows m_aOldRows;
77 :
78 : ORowSetMatrix* m_pInsertMatrix; // represent the rows which should be inserted normally this is only one
79 : ORowSetMatrix::iterator m_aInsertRow; // represent a insert row
80 :
81 : sal_Int32 m_nLastColumnIndex; // the last column ask for, used for wasNull()
82 :
83 : connectivity::OSQLTable m_aUpdateTable; // used for updates/deletes and inserts
84 :
85 : sal_Int32 m_nFetchSize;
86 : sal_Int32 m_nRowCount;
87 : sal_Int32 m_nPrivileges;
88 : sal_Int32 m_nPosition; // 0 means before first (i.e. 1-based)
89 :
90 : sal_Int32 m_nStartPos; // start pos of the window zero based (inclusive)
91 : sal_Int32 m_nEndPos; // end pos of the window zero based (exclusive)
92 :
93 : sal_Bool m_bRowCountFinal ;
94 : sal_Bool m_bBeforeFirst ;
95 : sal_Bool m_bAfterLast ;
96 : sal_Bool m_bUpdated ;
97 : sal_Bool& m_bModified ; // points to the rowset member m_bModified
98 : sal_Bool& m_bNew ; // points to the rowset member m_bNew
99 :
100 : sal_Bool fill(ORowSetMatrix::iterator& _aIter,const ORowSetMatrix::const_iterator& _aEnd,sal_Int32& _nPos,sal_Bool _bCheck);
101 : sal_Bool reFillMatrix(sal_Int32 _nNewStartPos,sal_Int32 nNewEndPos);
102 : sal_Bool fillMatrix(sal_Int32 &_nNewStartPos,sal_Int32 &_nNewEndPos);
103 : sal_Bool moveWindow();
104 : // returns true when a keyset needs to be created.
105 : sal_Bool impl_createBookmarkSet_nothrow(const ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XResultSet >& _xRs);
106 :
107 : void firePropertyChange(sal_Int32 _nColumnIndex,const ::connectivity::ORowSetValue& _rOldValue);
108 :
109 : void rotateCacheIterator(ORowSetMatrix::difference_type _nDist);
110 : void updateValue(sal_Int32 columnIndex
111 : ,const connectivity::ORowSetValue& x
112 : ,ORowSetValueVector::Vector& io_aRow
113 : ,::std::vector<sal_Int32>& o_ChangedColumns
114 : );
115 :
116 : void impl_updateRowFromCache_throw(ORowSetValueVector::Vector& io_aRow
117 : ,::std::vector<sal_Int32>& o_ChangedColumns
118 : );
119 : // checks and set the flags isAfterLast isLast and position when afterlast is true
120 : void checkPositionFlags();
121 : void checkUpdateConditions(sal_Int32 columnIndex);
122 : sal_Bool checkJoin( const ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XConnection>& _xConnection,
123 : const ::com::sun::star::uno::Reference< ::com::sun::star::sdb::XSingleSelectQueryAnalyzer >& _xComposer,
124 : const ::rtl::OUString& _sUpdateTableName);
125 : sal_Bool checkInnerJoin(const ::connectivity::OSQLParseNode *pNode
126 : ,const ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XConnection>& _xConnection
127 : ,const ::rtl::OUString& _sUpdateTableName);
128 :
129 : // clears the insert row
130 : void clearInsertRow();
131 : ORowSetMatrix::iterator calcPosition() const;
132 :
133 : protected:
134 0 : const ORowSetMatrix::iterator& getEnd() const { return m_aMatrixEnd;}
135 : // is called when after a moveToInsertRow a movement (next, etc) was called
136 : void cancelRowModification();
137 : public:
138 : ORowSetCache(const ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XResultSet >& _xRs,
139 : const ::com::sun::star::uno::Reference< ::com::sun::star::sdb::XSingleSelectQueryAnalyzer >& _xAnalyzer,
140 : const ::comphelper::ComponentContext& _rContext,
141 : const ::rtl::OUString& _rUpdateTableName,
142 : sal_Bool& _bModified,
143 : sal_Bool& _bNew,
144 : const ORowSetValueVector& _aParameterValueForCache,
145 : const ::rtl::OUString& i_sRowSetFilter,
146 : sal_Int32 i_nMaxRows);
147 : ~ORowSetCache();
148 :
149 :
150 : // called from the rowset when a updateXXX was called for the first time
151 : void setUpdateIterator(const ORowSetMatrix::iterator& _rOriginalRow);
152 : ORowSetCacheIterator createIterator(ORowSetBase* _pRowSet);
153 : void deleteIterator(const ORowSetBase* _pRowSet);
154 : // sets the size of the matrix
155 : void setFetchSize(sal_Int32 _nSize);
156 :
157 : TORowSetOldRowHelperRef registerOldRow();
158 : void deregisterOldRow(const TORowSetOldRowHelperRef& _rRow);
159 :
160 : // ::com::sun::star::sdbc::XResultSetMetaDataSupplier
161 : ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XResultSetMetaData > getMetaData( );
162 :
163 : // ::com::sun::star::sdbcx::XRowLocate
164 : ::com::sun::star::uno::Any getBookmark( );
165 : sal_Bool moveToBookmark( const ::com::sun::star::uno::Any& bookmark );
166 : sal_Bool moveRelativeToBookmark( const ::com::sun::star::uno::Any& bookmark, sal_Int32 rows );
167 : sal_Int32 compareBookmarks( const ::com::sun::star::uno::Any& first, const ::com::sun::star::uno::Any& second );
168 : sal_Bool hasOrderedBookmarks( );
169 : sal_Int32 hashBookmark( const ::com::sun::star::uno::Any& bookmark );
170 :
171 : // ::com::sun::star::sdbc::XRowUpdate
172 : void updateCharacterStream( sal_Int32 columnIndex, const ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream >& x, sal_Int32 length,ORowSetValueVector::Vector& io_aRow,::std::vector<sal_Int32>& o_ChangedColumns
173 : );
174 : void updateObject( sal_Int32 columnIndex, const ::com::sun::star::uno::Any& x,ORowSetValueVector::Vector& io_aRow ,::std::vector<sal_Int32>& o_ChangedColumns);
175 : void updateNumericObject( sal_Int32 columnIndex, const ::com::sun::star::uno::Any& x, sal_Int32 scale,ORowSetValueVector::Vector& io_aRow ,::std::vector<sal_Int32>& o_ChangedColumns);
176 : void updateNull(sal_Int32 columnIndex
177 : ,ORowSetValueVector::Vector& io_aRow
178 : ,::std::vector<sal_Int32>& o_ChangedColumns
179 : );
180 :
181 : // ::com::sun::star::sdbc::XResultSet
182 : sal_Bool next( );
183 : sal_Bool isBeforeFirst( );
184 : sal_Bool isAfterLast( );
185 : sal_Bool isFirst( );
186 : sal_Bool isLast( );
187 : sal_Bool beforeFirst( );
188 : sal_Bool afterLast( );
189 : sal_Bool first( );
190 : sal_Bool last( );
191 : sal_Int32 getRow( );
192 : sal_Bool absolute( sal_Int32 row );
193 : sal_Bool relative( sal_Int32 rows );
194 : sal_Bool previous( );
195 : void refreshRow( );
196 : sal_Bool rowUpdated( );
197 : sal_Bool rowInserted( );
198 :
199 : // ::com::sun::star::sdbc::XResultSetUpdate
200 : sal_Bool insertRow(::std::vector< ::com::sun::star::uno::Any >& o_aBookmarks);
201 : void resetInsertRow(sal_Bool _bClearInsertRow);
202 :
203 : void updateRow( ORowSetMatrix::iterator& _rUpdateRow,::std::vector< ::com::sun::star::uno::Any >& o_aBookmarks );
204 : bool deleteRow();
205 : void cancelRowUpdates( );
206 : void moveToInsertRow( );
207 :
208 0 : const ::std::map<sal_Int32,sal_Int32>& getKeyColumns() const { return m_aKeyColumns; }
209 : bool isResultSetChanged() const;
210 : void reset(const ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XResultSet>& _xDriverSet);
211 : };
212 : }
213 : #endif
214 :
215 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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