xref: /trunk/main/dbaccess/source/ui/relationdesign/RelationController.cxx (revision 1ecadb572e7010ff3b3382ad9bf179dbc6efadbb)
1 /*************************************************************************
2  *
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * Copyright 2000, 2010 Oracle and/or its affiliates.
6  *
7  * OpenOffice.org - a multi-platform office productivity suite
8  *
9  * This file is part of OpenOffice.org.
10  *
11  * OpenOffice.org is free software: you can redistribute it and/or modify
12  * it under the terms of the GNU Lesser General Public License version 3
13  * only, as published by the Free Software Foundation.
14  *
15  * OpenOffice.org is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  * GNU Lesser General Public License version 3 for more details
19  * (a copy is included in the LICENSE file that accompanied this code).
20  *
21  * You should have received a copy of the GNU Lesser General Public License
22  * version 3 along with OpenOffice.org.  If not, see
23  * <http://www.openoffice.org/license.html>
24  * for a copy of the LGPLv3 License.
25  *
26  ************************************************************************/
27 
28 // MARKER(update_precomp.py): autogen include statement, do not remove
29 #include "precompiled_dbaccess.hxx"
30 #include "dbu_reghelper.hxx"
31 #include <sfx2/sfxsids.hrc>
32 #include "dbu_rel.hrc"
33 #include <vcl/svapp.hxx>
34 #include "browserids.hxx"
35 #include <comphelper/types.hxx>
36 #include "dbustrings.hrc"
37 #include <connectivity/dbtools.hxx>
38 #include <com/sun/star/frame/FrameSearchFlag.hpp>
39 #include <comphelper/extract.hxx>
40 #include <com/sun/star/container/XChild.hpp>
41 #include <com/sun/star/container/XNameContainer.hpp>
42 #include <com/sun/star/sdbcx/XDataDescriptorFactory.hpp>
43 #include <com/sun/star/sdbcx/XTablesSupplier.hpp>
44 #include <com/sun/star/sdbcx/KeyType.hpp>
45 #include <com/sun/star/sdbcx/XDrop.hpp>
46 #include <com/sun/star/sdbcx/XAlterTable.hpp>
47 #include <com/sun/star/sdbcx/XAppend.hpp>
48 #include <com/sun/star/sdbcx/XKeysSupplier.hpp>
49 #include <com/sun/star/sdbcx/XColumnsSupplier.hpp>
50 #include <com/sun/star/sdb/SQLContext.hpp>
51 #include <com/sun/star/sdbc/SQLWarning.hpp>
52 #include <com/sun/star/sdbc/ColumnValue.hpp>
53 #include <com/sun/star/sdbc/XRow.hpp>
54 #include <connectivity/dbexception.hxx>
55 #include <connectivity/dbmetadata.hxx>
56 #include <com/sun/star/ui/dialogs/XExecutableDialog.hpp>
57 #include <comphelper/streamsection.hxx>
58 #include <comphelper/basicio.hxx>
59 #include <comphelper/seqstream.hxx>
60 #include <com/sun/star/io/XActiveDataSource.hpp>
61 #include <com/sun/star/io/XActiveDataSink.hpp>
62 #include "sqlmessage.hxx"
63 #include "RelationController.hxx"
64 #include <vcl/msgbox.hxx>
65 #include "TableWindowData.hxx"
66 #include "dbustrings.hrc"
67 #include "UITools.hxx"
68 #include "RTableConnectionData.hxx"
69 #include "RelationTableView.hxx"
70 #include "RelationDesignView.hxx"
71 #include <tools/debug.hxx>
72 #include <tools/diagnose_ex.h>
73 #include <vcl/waitobj.hxx>
74 #include <osl/thread.hxx>
75 #include <vos/mutex.hxx>
76 
77 
78 #define MAX_THREADS 10
79 
80 extern "C" void SAL_CALL createRegistryInfo_ORelationControl()
81 {
82     static ::dbaui::OMultiInstanceAutoRegistration< ::dbaui::ORelationController > aAutoRegistration;
83 }
84 
85 
86 using namespace ::com::sun::star::uno;
87 using namespace ::com::sun::star::io;
88 using namespace ::com::sun::star::beans;
89 using namespace ::com::sun::star::frame;
90 using namespace ::com::sun::star::util;
91 using namespace ::com::sun::star::lang;
92 using namespace ::com::sun::star::container;
93 using namespace ::com::sun::star::sdbcx;
94 using namespace ::com::sun::star::sdbc;
95 using namespace ::com::sun::star::sdb;
96 using namespace ::com::sun::star::ui::dialogs;
97 using namespace ::com::sun::star::util;
98 //  using namespace ::com::sun::star::sdbcx;
99 //  using namespace ::connectivity;
100 using namespace ::dbtools;
101 using namespace ::dbaui;
102 using namespace ::comphelper;
103 using namespace ::osl;
104 
105 //------------------------------------------------------------------------------
106 ::rtl::OUString SAL_CALL ORelationController::getImplementationName() throw( RuntimeException )
107 {
108     return getImplementationName_Static();
109 }
110 
111 //------------------------------------------------------------------------------
112 ::rtl::OUString ORelationController::getImplementationName_Static() throw( RuntimeException )
113 {
114     return ::rtl::OUString::createFromAscii("org.openoffice.comp.dbu.ORelationDesign");
115 }
116 //------------------------------------------------------------------------------
117 Sequence< ::rtl::OUString> ORelationController::getSupportedServiceNames_Static(void) throw( RuntimeException )
118 {
119     Sequence< ::rtl::OUString> aSupported(1);
120     aSupported.getArray()[0] = ::rtl::OUString::createFromAscii("com.sun.star.sdb.RelationDesign");
121     return aSupported;
122 }
123 //-------------------------------------------------------------------------
124 Sequence< ::rtl::OUString> SAL_CALL ORelationController::getSupportedServiceNames() throw(RuntimeException)
125 {
126     return getSupportedServiceNames_Static();
127 }
128 // -------------------------------------------------------------------------
129 Reference< XInterface > SAL_CALL ORelationController::Create(const Reference<XMultiServiceFactory >& _rxFactory)
130 {
131     return *(new ORelationController(_rxFactory));
132 }
133 DBG_NAME(ORelationController);
134 // -----------------------------------------------------------------------------
135 ORelationController::ORelationController(const Reference< XMultiServiceFactory >& _rM)
136     : OJoinController(_rM)
137     ,m_nThreadEvent(0)
138     ,m_bRelationsPossible(sal_True)
139 {
140     DBG_CTOR(ORelationController,NULL);
141     InvalidateAll();
142 }
143 // -----------------------------------------------------------------------------
144 ORelationController::~ORelationController()
145 {
146     DBG_DTOR(ORelationController,NULL);
147 }
148 // -----------------------------------------------------------------------------
149 FeatureState ORelationController::GetState(sal_uInt16 _nId) const
150 {
151     FeatureState aReturn;
152     aReturn.bEnabled = m_bRelationsPossible;
153     switch (_nId)
154     {
155         case SID_RELATION_ADD_RELATION:
156             aReturn.bEnabled = !m_vTableData.empty() && isConnected() && isEditable();
157             aReturn.bChecked = false;
158             break;
159         case ID_BROWSER_SAVEDOC:
160             aReturn.bEnabled = haveDataSource() && impl_isModified();
161             break;
162         default:
163             aReturn = OJoinController::GetState(_nId);
164             break;
165     }
166     return aReturn;
167 }
168 // -----------------------------------------------------------------------------
169 void ORelationController::Execute(sal_uInt16 _nId, const Sequence< PropertyValue >& aArgs)
170 {
171     switch(_nId)
172     {
173         case ID_BROWSER_SAVEDOC:
174             {
175                 OSL_ENSURE(isEditable(),"Slot ID_BROWSER_SAVEDOC should not be enabled!");
176                 if(!::dbaui::checkDataSourceAvailable(::comphelper::getString(getDataSource()->getPropertyValue(PROPERTY_NAME)),getORB()))
177                 {
178                     String aMessage(ModuleRes(STR_DATASOURCE_DELETED));
179                     OSQLWarningBox( getView(), aMessage ).Execute();
180                 }
181                 else
182                 {
183                     // now we save the layout information
184                     //  create the output stream
185                     try
186                     {
187                         if ( haveDataSource() && getDataSource()->getPropertySetInfo()->hasPropertyByName(PROPERTY_LAYOUTINFORMATION) )
188                         {
189                             ::comphelper::NamedValueCollection aWindowsData;
190                             saveTableWindows( aWindowsData );
191                             getDataSource()->setPropertyValue( PROPERTY_LAYOUTINFORMATION, makeAny( aWindowsData.getPropertyValues() ) );
192                             setModified(sal_False);
193                         }
194                     }
195                     catch ( const Exception& )
196                     {
197                         DBG_UNHANDLED_EXCEPTION();
198                     }
199                 }
200             }
201             break;
202         case SID_RELATION_ADD_RELATION:
203             static_cast<ORelationTableView*>(static_cast<ORelationDesignView*>( getView() )->getTableView())->AddNewRelation();
204             break;
205         default:
206             OJoinController::Execute(_nId,aArgs);
207             return;
208     }
209     InvalidateFeature(_nId);
210 }
211 // -----------------------------------------------------------------------------
212 void ORelationController::impl_initialize()
213 {
214     OJoinController::impl_initialize();
215 
216     if( !getSdbMetaData().supportsRelations() )
217     {// check if this database supports relations
218 
219         setEditable(sal_False);
220         m_bRelationsPossible    = sal_False;
221         {
222             String sTitle(ModuleRes(STR_RELATIONDESIGN));
223             sTitle.Erase(0,3);
224             OSQLMessageBox aDlg(NULL,sTitle,ModuleRes(STR_RELATIONDESIGN_NOT_AVAILABLE));
225             aDlg.Execute();
226         }
227         disconnect();
228         throw SQLException();
229     }
230 
231     if(!m_bRelationsPossible)
232         InvalidateAll();
233 
234     // we need a datasource
235     OSL_ENSURE(haveDataSource(),"ORelationController::initialize: need a datasource!");
236 
237     Reference<XTablesSupplier> xSup(getConnection(),UNO_QUERY);
238     OSL_ENSURE(xSup.is(),"Connection isn't a XTablesSupplier!");
239     if(xSup.is())
240         m_xTables = xSup->getTables();
241     // load the layoutInformation
242     loadLayoutInformation();
243     try
244     {
245         loadData();
246         if ( !m_nThreadEvent )
247             Application::PostUserEvent(LINK(this, ORelationController, OnThreadFinished));
248     }
249     catch( const Exception& )
250     {
251         DBG_UNHANDLED_EXCEPTION();
252     }
253 
254 }
255 // -----------------------------------------------------------------------------
256 ::rtl::OUString ORelationController::getPrivateTitle( ) const
257 {
258     ::rtl::OUString sName = getDataSourceName();
259     return ::dbaui::getStrippedDatabaseName(getDataSource(),sName);
260 }
261 // -----------------------------------------------------------------------------
262 sal_Bool ORelationController::Construct(Window* pParent)
263 {
264     setView( * new ORelationDesignView( pParent, *this, getORB() ) );
265     OJoinController::Construct(pParent);
266     return sal_True;
267 }
268 // -----------------------------------------------------------------------------
269 short ORelationController::saveModified()
270 {
271     short nSaved = RET_YES;
272     if(haveDataSource() && isModified())
273     {
274         QueryBox aQry(getView(), ModuleRes(RELATION_DESIGN_SAVEMODIFIED));
275         nSaved = aQry.Execute();
276         if(nSaved == RET_YES)
277             Execute(ID_BROWSER_SAVEDOC,Sequence<PropertyValue>());
278     }
279     return nSaved;
280 }
281 // -----------------------------------------------------------------------------
282 void ORelationController::describeSupportedFeatures()
283 {
284     OJoinController::describeSupportedFeatures();
285     implDescribeSupportedFeature( ".uno:DBAddRelation", SID_RELATION_ADD_RELATION, CommandGroup::EDIT );
286 }
287 namespace
288 {
289     class RelationLoader : public ::osl::Thread
290     {
291         DECLARE_STL_MAP(::rtl::OUString,::boost::shared_ptr<OTableWindowData>,::comphelper::UStringMixLess,TTableDataHelper);
292         TTableDataHelper                    m_aTableData;
293         TTableConnectionData                m_vTableConnectionData;
294         const Sequence< ::rtl::OUString>    m_aTableList;
295         ORelationController*                m_pParent;
296         const Reference< XDatabaseMetaData> m_xMetaData;
297         const Reference< XNameAccess >      m_xTables;
298         const sal_Int32                     m_nStartIndex;
299         const sal_Int32                     m_nEndIndex;
300 
301     public:
302         RelationLoader(ORelationController* _pParent
303                         ,const Reference< XDatabaseMetaData>& _xMetaData
304                         ,const Reference< XNameAccess >& _xTables
305                         ,const Sequence< ::rtl::OUString>& _aTableList
306                         ,const sal_Int32 _nStartIndex
307                         ,const sal_Int32 _nEndIndex)
308             :m_aTableData(_xMetaData.is() && _xMetaData->supportsMixedCaseQuotedIdentifiers())
309             ,m_aTableList(_aTableList)
310             ,m_pParent(_pParent)
311             ,m_xMetaData(_xMetaData)
312             ,m_xTables(_xTables)
313             ,m_nStartIndex(_nStartIndex)
314             ,m_nEndIndex(_nEndIndex)
315         {
316         }
317 
318         /// Working method which should be overridden.
319         virtual void SAL_CALL run();
320         virtual void SAL_CALL onTerminated();
321     protected:
322         virtual ~RelationLoader(){}
323 
324         void loadTableData(const Any& _aTable);
325     };
326 
327     void SAL_CALL RelationLoader::run()
328     {
329         const ::rtl::OUString* pIter = m_aTableList.getConstArray() + m_nStartIndex;
330         for(sal_Int32 i = m_nStartIndex; i < m_nEndIndex;++i,++pIter)
331         {
332             ::rtl::OUString sCatalog,sSchema,sTable;
333             ::dbtools::qualifiedNameComponents(m_xMetaData,
334                                                 *pIter,
335                                                 sCatalog,
336                                                 sSchema,
337                                                 sTable,
338                                                 ::dbtools::eInDataManipulation);
339             Any aCatalog;
340             if ( sCatalog.getLength() )
341                 aCatalog <<= sCatalog;
342 
343             try
344             {
345                 Reference< XResultSet > xResult = m_xMetaData->getImportedKeys(aCatalog, sSchema,sTable);
346                 if ( xResult.is() && xResult->next() )
347                 {
348                     ::comphelper::disposeComponent(xResult);
349                     loadTableData(m_xTables->getByName(*pIter));
350                 } // if ( xResult.is() && xResult->next() )
351             }
352             catch( const Exception& )
353             {
354                 DBG_UNHANDLED_EXCEPTION();
355             }
356         }
357     }
358     void SAL_CALL RelationLoader::onTerminated()
359     {
360         m_pParent->mergeData(m_vTableConnectionData);
361         delete this;
362     }
363 
364     void RelationLoader::loadTableData(const Any& _aTable)
365     {
366         Reference<XPropertySet> xTableProp(_aTable,UNO_QUERY);
367         const ::rtl::OUString sSourceName = ::dbtools::composeTableName( m_xMetaData, xTableProp, ::dbtools::eInTableDefinitions, false, false, false );
368         TTableDataHelper::iterator aFind = m_aTableData.find(sSourceName);
369         bool bNotFound = true, bAdded = false;
370         if ( aFind == m_aTableData.end() )
371         {
372             aFind = m_aTableData.insert(TTableDataHelper::value_type(sSourceName,::boost::shared_ptr<OTableWindowData>(new OTableWindowData(xTableProp,sSourceName, sSourceName)))).first;
373             aFind->second->ShowAll(sal_False);
374             bAdded = true;
375         }
376         TTableWindowData::value_type pReferencingTable = aFind->second;
377         Reference<XIndexAccess> xKeys = pReferencingTable->getKeys();
378         const Reference<XKeysSupplier> xKeySup(xTableProp,UNO_QUERY);
379 
380         if ( !xKeys.is() && xKeySup.is() )
381         {
382             xKeys = xKeySup->getKeys();
383         }
384 
385         if ( xKeys.is() )
386         {
387             Reference<XPropertySet> xKey;
388             const sal_Int32 nCount = xKeys->getCount();
389             for(sal_Int32 i = 0 ; i < nCount ; ++i)
390             {
391                 xKeys->getByIndex(i) >>= xKey;
392                 sal_Int32 nKeyType = 0;
393                 xKey->getPropertyValue(PROPERTY_TYPE) >>= nKeyType;
394                 if ( KeyType::FOREIGN == nKeyType )
395                 {
396                     bNotFound = false;
397                     ::rtl::OUString sReferencedTable;
398                     xKey->getPropertyValue(PROPERTY_REFERENCEDTABLE) >>= sReferencedTable;
399                     //////////////////////////////////////////////////////////////////////
400                     // insert windows
401                     TTableDataHelper::iterator aRefFind = m_aTableData.find(sReferencedTable);
402                     if ( aRefFind == m_aTableData.end() )
403                     {
404                         if ( m_xTables->hasByName(sReferencedTable) )
405                         {
406                             Reference<XPropertySet>  xReferencedTable(m_xTables->getByName(sReferencedTable),UNO_QUERY);
407                             aRefFind = m_aTableData.insert(TTableDataHelper::value_type(sReferencedTable,::boost::shared_ptr<OTableWindowData>(new OTableWindowData(xReferencedTable,sReferencedTable, sReferencedTable)))).first;
408                             aRefFind->second->ShowAll(sal_False);
409                         }
410                         else
411                             continue; // table name could not be found so we do not show this table releation
412                     } // if ( aFind == m_aTableData.end() )
413                     TTableWindowData::value_type pReferencedTable = aRefFind->second;
414 
415                     ::rtl::OUString sKeyName;
416                     xKey->getPropertyValue(PROPERTY_NAME) >>= sKeyName;
417                     //////////////////////////////////////////////////////////////////////
418                     // insert connection
419                     ORelationTableConnectionData* pTabConnData = new ORelationTableConnectionData( pReferencingTable, pReferencedTable, sKeyName );
420                     m_vTableConnectionData.push_back(TTableConnectionData::value_type(pTabConnData));
421                     //////////////////////////////////////////////////////////////////////
422                     // insert columns
423                     const Reference<XColumnsSupplier> xColsSup(xKey,UNO_QUERY);
424                     OSL_ENSURE(xColsSup.is(),"Key is no XColumnsSupplier!");
425                     const Reference<XNameAccess> xColumns       = xColsSup->getColumns();
426                     const Sequence< ::rtl::OUString> aNames = xColumns->getElementNames();
427                     const ::rtl::OUString* pIter    = aNames.getConstArray();
428                     const ::rtl::OUString* pEnd     = pIter + aNames.getLength();
429                     ::rtl::OUString sColumnName,sRelatedName;
430                     for(sal_uInt16 j=0;pIter != pEnd;++pIter,++j)
431                     {
432                         const Reference<XPropertySet> xPropSet(xColumns->getByName(*pIter),UNO_QUERY);
433                         OSL_ENSURE(xPropSet.is(),"Invalid column found in KeyColumns!");
434                         if ( xPropSet.is() )
435                         {
436                             xPropSet->getPropertyValue(PROPERTY_NAME)           >>= sColumnName;
437                             xPropSet->getPropertyValue(PROPERTY_RELATEDCOLUMN)  >>= sRelatedName;
438                         }
439                         pTabConnData->SetConnLine( j, sColumnName, sRelatedName );
440                     }
441                     //////////////////////////////////////////////////////////////////////
442                     // Update/Del-Flags setzen
443                     sal_Int32   nUpdateRule = 0;
444                     sal_Int32   nDeleteRule = 0;
445                     xKey->getPropertyValue(PROPERTY_UPDATERULE) >>= nUpdateRule;
446                     xKey->getPropertyValue(PROPERTY_DELETERULE) >>= nDeleteRule;
447 
448                     pTabConnData->SetUpdateRules( nUpdateRule );
449                     pTabConnData->SetDeleteRules( nDeleteRule );
450 
451                     //////////////////////////////////////////////////////////////////////
452                     // Kardinalitaet setzen
453                     pTabConnData->SetCardinality();
454                 }
455             }
456         } // if ( xKeys.is() )
457     }
458 }
459 
460 void ORelationController::mergeData(const TTableConnectionData& _aConnectionData)
461 {
462     ::osl::MutexGuard aGuard( getMutex() );
463 
464     ::std::copy( _aConnectionData.begin(), _aConnectionData.end(), ::std::back_inserter( m_vTableConnectionData ));
465     //const Reference< XDatabaseMetaData> xMetaData = getConnection()->getMetaData();
466     const sal_Bool bCase = sal_True;//xMetaData.is() && xMetaData->supportsMixedCaseQuotedIdentifiers();
467     // here we are finished, so we can collect the table from connection data
468     TTableConnectionData::iterator aConnDataIter = m_vTableConnectionData.begin();
469     TTableConnectionData::iterator aConnDataEnd = m_vTableConnectionData.end();
470     for(;aConnDataIter != aConnDataEnd;++aConnDataIter)
471     {
472         if ( !existsTable((*aConnDataIter)->getReferencingTable()->GetComposedName(),bCase) )
473         {
474             m_vTableData.push_back((*aConnDataIter)->getReferencingTable());
475         }
476         if ( !existsTable((*aConnDataIter)->getReferencedTable()->GetComposedName(),bCase) )
477         {
478             m_vTableData.push_back((*aConnDataIter)->getReferencedTable());
479         }
480     } // for(;aConnDataIter != aConnDataEnd;++aConnDataIter)
481     if ( m_nThreadEvent )
482     {
483         --m_nThreadEvent;
484         if ( !m_nThreadEvent )
485             Application::PostUserEvent(LINK(this, ORelationController, OnThreadFinished));
486     }
487 }
488 // -----------------------------------------------------------------------------
489 IMPL_LINK( ORelationController, OnThreadFinished, void*, /*NOTINTERESTEDIN*/ )
490 {
491     vos::OGuard aSolarGuard( Application::GetSolarMutex() );
492     ::osl::MutexGuard aGuard( getMutex() );
493     try
494     {
495         getView()->initialize();    // show the windows and fill with our informations
496         getView()->Invalidate(INVALIDATE_NOERASE);
497         ClearUndoManager();
498         setModified(sal_False);     // and we are not modified yet
499 
500         if(m_vTableData.empty())
501             Execute(ID_BROWSER_ADDTABLE,Sequence<PropertyValue>());
502     }
503     catch( const Exception& )
504     {
505         DBG_UNHANDLED_EXCEPTION();
506     }
507     m_pWaitObject.reset();
508     return 0L;
509 }
510 // -----------------------------------------------------------------------------
511 void ORelationController::loadData()
512 {
513     m_pWaitObject.reset( new WaitObject(getView()) );
514     try
515     {
516         if ( !m_xTables.is() )
517             return;
518         DatabaseMetaData aMeta(getConnection());
519         // this may take some time
520         const Reference< XDatabaseMetaData> xMetaData = getConnection()->getMetaData();
521         const Sequence< ::rtl::OUString> aNames = m_xTables->getElementNames();
522         const sal_Int32 nCount = aNames.getLength();
523         if ( aMeta.supportsThreads() )
524         {
525             const sal_Int32 nMaxElements = (nCount / MAX_THREADS) +1;
526             sal_Int32 nStart = 0,nEnd = ::std::min(nMaxElements,nCount);
527             while(nStart != nEnd)
528             {
529                 ++m_nThreadEvent;
530                 RelationLoader* pThread = new RelationLoader(this,xMetaData,m_xTables,aNames,nStart,nEnd);
531                 pThread->createSuspended();
532                 pThread->setPriority(osl_Thread_PriorityBelowNormal);
533                 pThread->resume();
534                 nStart = nEnd;
535                 nEnd += nMaxElements;
536                 nEnd = ::std::min(nEnd,nCount);
537             } // for(;pIter != pEnd;++pIter)
538         } // if ( aMeta.supportsThreads() )
539         else
540         {
541             RelationLoader* pThread = new RelationLoader(this,xMetaData,m_xTables,aNames,0,nCount);
542             pThread->run();
543             pThread->onTerminated();
544         }
545     }
546     catch(SQLException& e)
547     {
548         showError(SQLExceptionInfo(e));
549     }
550     catch(const Exception&)
551     {
552         DBG_UNHANDLED_EXCEPTION();
553     }
554 }
555 // -----------------------------------------------------------------------------
556 TTableWindowData::value_type ORelationController::existsTable(const ::rtl::OUString& _rComposedTableName,sal_Bool _bCase)  const
557 {
558     ::comphelper::UStringMixEqual bCase(_bCase);
559     TTableWindowData::const_iterator aIter = m_vTableData.begin();
560     TTableWindowData::const_iterator aEnd = m_vTableData.end();
561     for(;aIter != aEnd;++aIter)
562     {
563         if(bCase((*aIter)->GetComposedName(),_rComposedTableName))
564             break;
565     }
566     return ( aIter != aEnd) ? *aIter : TTableWindowData::value_type();
567 }
568 // -----------------------------------------------------------------------------
569 void ORelationController::loadLayoutInformation()
570 {
571     try
572     {
573         OSL_ENSURE(haveDataSource(),"We need a datasource from our connection!");
574         if ( haveDataSource() )
575         {
576             if ( getDataSource()->getPropertySetInfo()->hasPropertyByName(PROPERTY_LAYOUTINFORMATION) )
577             {
578                 Sequence<PropertyValue> aWindows;
579                 getDataSource()->getPropertyValue(PROPERTY_LAYOUTINFORMATION) >>= aWindows;
580                 loadTableWindows(aWindows);
581             }
582         }
583     }
584     catch(Exception&)
585     {
586     }
587 }
588 // -----------------------------------------------------------------------------
589 void ORelationController::reset()
590 {
591     loadLayoutInformation();
592     ODataView* pView = getView();
593     OSL_ENSURE(pView,"No current view!");
594     if(pView)
595     {
596         pView->initialize();
597         pView->Invalidate(INVALIDATE_NOERASE);
598     }
599 }
600 
601 // -----------------------------------------------------------------------------
602 bool ORelationController::allowViews() const
603 {
604     return false;
605 }
606 
607 // -----------------------------------------------------------------------------
608 bool ORelationController::allowQueries() const
609 {
610     return false;
611 }
612 
613 // -----------------------------------------------------------------------------
614 
615 
616