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os/persistentdata/persistentstorage/dbms/utable/UT_RSTRT.CPP
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib. 
     1 // Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #include "UT_STD.H"

    17 

    18 // Class CDbRestrictStage

    19 CDbRestrictStage::CDbRestrictStage(TDbTextComparison aComparison)

    20 	: iTextOp(TTextOps::Ops(aComparison))

    21 	{}

    22 

    23 CDbRestrictStage::~CDbRestrictStage()

    24 	{

    25 	delete iRestriction;

    26 	}

    27 

    28 TInt CDbRestrictStage::CountL()

    29 	{

    30 	return KDbUndefinedCount;

    31 	}

    32 

    33 TBool CDbRestrictStage::FilterRowL(TDbRecordId aRecordId)

    34 	{

    35 	CDbDataStage::ReadRowL(aRecordId);

    36 	return Restriction().EvaluateL(iTextOp);

    37 	}

    38 

    39 CDbRestrictStage::TGoto CDbRestrictStage::GotoL(TInt& aWork,TDbPosition aPosition,TDbRecordId& aRecordId)

    40 	{

    41 	TGoto go=CDbDataStage::GotoL(aWork,aPosition,aRecordId);

    42 	if (go==ESuccess)

    43 		{

    44 		switch (aPosition)

    45 			{

    46 		case EDbFirst:

    47 			aPosition=EDbNext;

    48 			break;

    49 		case EDbLast:

    50 			aPosition=EDbPrevious;

    51 			break;

    52 		default:

    53 			break;

    54 			}

    55 		do

    56 			{

    57 			TBool inSet=FilterRowL(aRecordId);

    58 			aWork-=EWorkToRead;

    59 			if (inSet)

    60 				break;

    61 			} while ((go=CDbDataStage::GotoL(aWork,aPosition,aRecordId))==ESuccess);

    62 		}

    63 	return go;

    64 	}

    65 

    66 TBool CDbRestrictStage::GotoL(TDbRecordId aRecordId)

    67 //

    68 // If the record exists, check the restriction

    69 //

    70 	{

    71 	return CDbDataStage::GotoL(aRecordId) ? FilterRowL(aRecordId) : EFalse;

    72 	}

    73 

    74 CDbRestrictStage::TDelete CDbRestrictStage::DeleteRowL(TDbRecordId& aRecordId,TSynch aSynch)

    75 //

    76 // If trying to synchronise, and we find EDeletedAtNext, then we must check it is really in the rowset

    77 //

    78 	{

    79 	TDelete r=CDbDataStage::DeleteRowL(aRecordId,aSynch);

    80 	if (aSynch==ESynch && r==EDeletedAtNext && !FilterRowL(aRecordId))

    81 		r=EDeletedInLimbo;		// not a member, this cursor is now "in limbo"

    82 	return r;

    83 	}
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