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C++ CDbColSet::Count方法代码示例

本文整理汇总了C++中CDbColSet::Count方法的典型用法代码示例。如果您正苦于以下问题：C++ CDbColSet::Count方法的具体用法？C++ CDbColSet::Count怎么用？C++ CDbColSet::Count使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类CDbColSet的用法示例。


在下文中一共展示了CDbColSet::Count方法的7个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: ExternalizeL

GLDEF_C void ExternalizeL(const CDbColSet& aColSet,RWriteStream& aStream)
	{
	TInt cc=aColSet.Count();
	aStream.WriteInt32L(cc);
	for (TInt ii=0;++ii<=cc;)
		aStream<<aColSet[ii];
	}
开发者ID:cdaffara，项目名称:symbiandump-os2，代码行数:7，代码来源:SD_UTL.CPP

示例2: CheckConfigTableL

void CAppConfig::CheckConfigTableL() {
    CDbColSet *colSet = NULL;
    TInt error;
    
    TRAP(error, colSet = iDb.ColSetL(KConfigTable));
    
    if (colSet != NULL) {
        TBool drop =
                colSet->Count() != 2
                || colSet->ColNo(KConfigKeyCol) == KDbNullColNo
                || colSet->ColNo(KConfigValueCol) == KDbNullColNo
        ;
        
        delete colSet;
        
        if (drop) {
            User::LeaveIfError(iDb.DropTable(KConfigTable));
            colSet = NULL;
        }
    }
    
    if (colSet == NULL) {
        // Specify columns for config table
        TDbCol keyCol(KConfigKeyCol, EDbColText, KConfigKeyMaxLength);
        TDbCol valueCol(KConfigValueCol, EDbColText, KConfigValueMaxLength);
        keyCol.iAttributes = TDbCol::ENotNull;
        valueCol.iAttributes = TDbCol::ENotNull;
        
        // Add the columns to column set
        colSet = CDbColSet::NewLC();
        colSet->AddL(keyCol);
        colSet->AddL(valueCol);
        
        // Create the Books table
        User::LeaveIfError(iDb.CreateTable(KConfigTable, *colSet));
        CleanupStack::PopAndDestroy(colSet);
    }
    
    CDbKey *idx = NULL;
    TRAP(error, idx = iDb.KeyL(KConfigIndex, KConfigTable));
    if (idx != NULL) {
        if (!idx->IsUnique()) {
            iDb.DropIndex(KConfigIndex, KConfigTable);
            delete idx;
            idx = NULL;
        } else {
            delete idx;
        }
    }
    if (idx == NULL) {
        TDbKeyCol keyCol(KConfigKeyCol);
        idx = CDbKey::NewLC();
        idx->MakeUnique();
        idx->AddL(keyCol);
        User::LeaveIfError(iDb.CreateIndex(KConfigIndex, KConfigTable, *idx));
        CleanupStack::PopAndDestroy(idx);
    }
}
开发者ID:azaka，项目名称:puzzless60，代码行数:58，代码来源:CAppConfig.cpp

示例3: if

void CDbTableDatabase::CAlterTable::ConstructL(const CDbColSet& aNewDef,TInt& aStep)
//
// get all the deleted columns
// check changes to columns still present
// get all the new columns
// construct a new columns set based on the changes
//
	{
//
// flag all columns as dropped initially
	HDbColumnSet& columns=iDef.Columns();
	HDbColumnSet::TIterator iter=columns.Begin();
	HDbColumnSet::TIteratorC const end=columns.End();
	do
		{
		iter->iFlags=TDbColumnDef::EDropped;
		} while (++iter<end);
//
// look for additions and changes
	CDbColSet* change=CDbColSet::NewLC();
	CDbColSet* add=CDbColSet::NewLC();
	for (TDbColSetIter iterNew(aNewDef);iterNew;++iterNew)
		{
		const TDbCol& col=*iterNew;
		TDbColumnDef* def=columns.ColumnL(iterNew->iName);
		if (!def)	// a new column
			add->AddL(col);
		else
			{	// see if the definition has changed
			if (def->iAttributes!=col.iAttributes)
				__LEAVE(KErrArgument);		// can't change attributes
			TUint8 flag=0;
			if (def->iType!=col.iType)
				flag=TDbColumnDef::EChangedType;
			else if (def->iType>=EDbColText8 && col.iMaxLength!=KDbUndefinedLength && col.iMaxLength!=def->iMaxLength)
				flag=TDbColumnDef::EChangedLen;
			def->iFlags=flag;
			if (flag)
				change->AddL(col);	// column has changed
			}
		}
//
// check that all marked columns are not indexed
//
	iter=columns.Begin();
	do
		{
		if (iter->iFlags && iDef.IsIndexed(*iter->iName))
			__LEAVE(KErrArgument);		// can't remove indexed column
		} while (++iter<end);
//
	iNewSet=HDbColumnSet::NewL(aNewDef.Count());
	iDef.AlteredColumnSetL(*iNewSet,*change,*add);
	CleanupStack::PopAndDestroy(2);	// add, change
	Construct(Database().TableAlterL(iDef,*iNewSet,aStep));
	}
开发者ID:cdaffara，项目名称:symbiandump-os2，代码行数:56，代码来源:UT_INCR.CPP

示例4: InternalizeL

GLDEF_C void InternalizeL(CDbColSet& aColSet,RReadStream& aStream)
	{
	__ASSERT(aColSet.Count()==0);
	TDbCol col;
	TPtr name(col.iName.Des());
	TInt cc=aStream.ReadInt32L();
	while (--cc>=0)
		{
		aStream>>name;
		col.iType=TDbColType(aStream.ReadUint8L());
		col.iMaxLength=aStream.ReadInt32L();
		col.iAttributes=aStream.ReadUint8L();
		aColSet.AddL(col);
		}
	}
开发者ID:cdaffara，项目名称:symbiandump-os2，代码行数:15，代码来源:SD_UTL.CPP

示例5: OutputTableColHeadingsToFileLC

/**
Outputs table header for the tables created in the html file
The header contains the column names

@param 	aTableIndex table index in the table array

*/
CDesCArray* CDbDbmsDumper::OutputTableColHeadingsToFileLC(TInt aTableIndex)
	{
	CDesCArraySeg* colNames = new (ELeave) CDesCArraySeg(8);
	CleanupStack::PushL(colNames);
	CDbColSet* colSet = iDatabase.ColSetL( (*iTableNames)[aTableIndex] );
	CleanupStack::PushL(colSet);
	const TInt KMaxCols( (colSet->Count() ) );  
	TInt counter = 0;
    iFile.Write(KHdRow);

	// cols are from 1, to maxCols. not from 0 to maxCols-1.
	for (counter = 1; counter <= KMaxCols; ++counter)
		{
		iFile.Write(KCell);
		iBuffer->Des().Copy( (*colSet)[counter].iName );
		colNames->AppendL((*colSet)[counter].iName);
		iFile.Write(*iBuffer);
		iFile.Write(KCellEnd);
		}

    iFile.Write(KRowEnd);
	CleanupStack::PopAndDestroy(colSet);
	return colNames;
	}
开发者ID:bavanisp，项目名称:qtmobility-1.1.0，代码行数:31，代码来源:dbdbmsdumper.cpp

示例6: CheckAutosaveTableL

void CAppConfig::CheckAutosaveTableL() {
    CDbColSet *colSet = NULL;
    TInt error;
    
    TRAP(error, colSet = iDb.ColSetL(KAutosaveTable));
    
    if (colSet != NULL) {
        TBool drop =
                colSet->Count() != 3
                || colSet->ColNo(KAutosaveNameCol) == KDbNullColNo
                || colSet->ColNo(KAutosaveSaveCol) == KDbNullColNo
                || colSet->ColNo(KAutosaveDateCol) == KDbNullColNo
        ;
        
        delete colSet;
        
        if (drop) {
            User::LeaveIfError(iDb.DropTable(KAutosaveTable));
            colSet = NULL;
        }
    }
    
    if (colSet == NULL) {
        // Specify columns for config table
        TDbCol nameCol(KAutosaveNameCol, EDbColText8, KAutosaveNameMaxLength);
        TDbCol saveCol(KAutosaveSaveCol, EDbColLongText8);
        TDbCol dateCol(KAutosaveDateCol, EDbColDateTime);
        
        nameCol.iAttributes = TDbCol::ENotNull;
        saveCol.iAttributes = TDbCol::ENotNull;
        dateCol.iAttributes = TDbCol::ENotNull;
        
        // Add the columns to column set
        colSet = CDbColSet::NewLC();
        colSet->AddL(nameCol);
        colSet->AddL(saveCol);
        colSet->AddL(dateCol);
        
        // Create the Books table
        TInt _err = iDb.CreateTable(KAutosaveTable, *colSet);
        User::LeaveIfError(_err);
        CleanupStack::PopAndDestroy(colSet);
    }
    
    CDbKey *idx = NULL;
    TRAP(error, idx = iDb.KeyL(KAutosaveIndex, KAutosaveTable));
    if (idx != NULL) {
        if (!idx->IsUnique()) {
            iDb.DropIndex(KAutosaveIndex, KAutosaveTable);
            delete idx;
            idx = NULL;
        } else {
            delete idx;
        }
    }
    if (idx == NULL) {
        TDbKeyCol keyCol(KAutosaveNameCol);
        idx = CDbKey::NewLC();
        idx->MakeUnique();
        idx->AddL(keyCol);
        User::LeaveIfError(iDb.CreateIndex(KAutosaveIndex, KAutosaveTable, *idx));
        CleanupStack::PopAndDestroy(idx);
    }
}
开发者ID:azaka，项目名称:puzzless60，代码行数:64，代码来源:CAppConfig.cpp

示例7: TblCallTestL

static void TblCallTestL()
	{
	TheTest.Next(_L("Open()"));	
	TInt err = TheTbl1.Open(TheDb1, KTableName1);
	TEST2(err, KErrNone);
	
	TheTest.Next(_L("ColSetL()"));	
	CDbColSet* colset = TheTbl1.ColSetL();
	TInt cnt = colset->Count();
	TInt i;
	for(i=0;i<cnt;++i)
		{
		const TDbCol& dbc = (*colset)[i + 1];
		TheTest.Printf(_L("%02d, %S\n"), i + 1, &dbc.iName);
		}
	delete colset;
	
	TheTest.Next(_L("ColDef()"));	
	TDbCol dbcol = TheTbl1.ColDef(1);
	TheTest.Printf(_L("%S\n"), &dbcol.iName);

	TheTest.Next(_L("InsertL()/SetColL()/PutL()"));	
	TheTbl1.InsertL();
	TheTbl1.SetColL(2, 1);
	TheTbl1.SetColL(3, 2);
	TheTbl1.PutL();
	TheTbl1.InsertL();
	TheTbl1.SetColL(2, 3);
	TheTbl1.SetColL(3, 4);
	TheTbl1.PutL();
	
	TheTest.Next(_L("AtRow()/AtBeginning()/AtEnd()"));	
	(void)TheTbl1.AtRow();
	(void)TheTbl1.AtBeginning();
	(void)TheTbl1.AtEnd();

	TheTest.Next(_L("BeginningL()/EndL()"));	
	TheTbl1.BeginningL();
	TheTbl1.EndL();

	TheTest.Next(_L("FirstL()/LastL()/PreviousL()/PreviousL()"));	
	TBool res = TheTbl1.FirstL();
	TEST(res);
	TheTbl1.GetL();
	TInt32 val1 = TheTbl1.ColInt32(1);
	TInt32 val2 = TheTbl1.ColInt32(2);
	TInt32 val3 = TheTbl1.ColInt32(3);
	TEST(val1 == 0);
	TEST(val2 == 1);
	TEST(val3 == 2);
	
	res = TheTbl1.LastL();
	TEST(res);
	TheTbl1.GetL();
	val1 = TheTbl1.ColInt32(1);
	val2 = TheTbl1.ColInt32(2);
	val3 = TheTbl1.ColInt32(3);
	TEST(val1 == 1);
	TEST(val2 == 3);
	TEST(val3 == 4);

	res = TheTbl1.PreviousL();
	TEST(res);
	TheTbl1.GetL();
	val1 = TheTbl1.ColInt32(1);
	val2 = TheTbl1.ColInt32(2);
	val3 = TheTbl1.ColInt32(3);
	TEST(val1 == 0);
	TEST(val2 == 1);
	TEST(val3 == 2);
	
	res = TheTbl1.NextL();
	TEST(res);
	TheTbl1.GetL();
	val1 = TheTbl1.ColInt32(1);
	val2 = TheTbl1.ColInt32(2);
	val3 = TheTbl1.ColInt32(3);
	TEST(val1 == 1);
	TEST(val2 == 3);
	TEST(val3 == 4);

	TheTest.Next(_L("UpdateL()"));	
	TheTbl1.UpdateL();
	TheTbl1.SetColL(2, 33);
	TheTbl1.SetColL(3, 44);
	TheTbl1.PutL();

	TheTest.Next(_L("Cancel()"));	
	TheTbl1.UpdateL();
	TheTbl1.SetColL(2, 36);
	TheTbl1.SetColL(3, 47);
	TheTbl1.Cancel();

	TheTest.Next(_L("DeleteL()"));	
	TheTbl1.DeleteL();

	TheTest.Next(_L("IsColNull()"));	
	CDbColSet* colset2 = TDBSCUtils::CreateColSetLC(KColumns2);
	_LIT(KTempTblName, "TempTbl");
	err = TheDb1.CreateTable(KTempTblName, *colset2);
//.........这里部分代码省略.........
开发者ID:cdaffara，项目名称:symbiandump-os2，代码行数:101，代码来源:t_dbplatsectbl.cpp


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