metadataengine/client/src/mderelationcondition.cpp
author hgs
Fri, 23 Jul 2010 10:03:59 +0300
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permissions -rw-r--r--
201029
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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  ?Description
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*
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*/
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#include "mderelationcondition.h"
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#include "mderelationdef.h"
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#include "mdelogiccondition.h"
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#include "mdscommoninternal.h"
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#include "mdcserializationbuffer.h"
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#include "mdcquery.h"
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CMdERelationCondition* CMdERelationCondition::NewL( TItemId aRelationId,
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		const RArray<TItemId>* aRelationIds, TRelationConditionSide aSide,
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		const CMdERelationDef* aRelationDef, 
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		const TMdEIntRange* aParameterRange )
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	{
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	CMdERelationCondition* self = CMdERelationCondition::NewLC(
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			aRelationId, aRelationIds, aSide, aRelationDef, aParameterRange );
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    CleanupStack::Pop( self );
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    return self;
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	}
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CMdERelationCondition* CMdERelationCondition::NewLC( TItemId aRelationId,
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		const RArray<TItemId>* aRelationIds, TRelationConditionSide aSide,
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		const CMdERelationDef* aRelationDef, 
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		const TMdEIntRange* aParameterRange )
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	{
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	CMdERelationCondition* self = new ( ELeave ) CMdERelationCondition( 
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			aRelationId, aSide, aRelationDef );
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    CleanupStack::PushL( self );
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    self->ConstructL( aRelationIds, aParameterRange );
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    return self;
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	}
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CMdERelationCondition::CMdERelationCondition( TItemId aRelationId, 
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		TRelationConditionSide aSide, const CMdERelationDef* aRelationDef )
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		: CMdECondition( EConditionTypeRelation ), iRelationId( aRelationId ),
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		  iRelationDef( aRelationDef ), iSide( aSide )
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	{
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	iRelationIds = NULL;
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	iParameterRange = NULL;
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	iRightCondition = NULL;
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	iLeftCondition = NULL;
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	}
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void CMdERelationCondition::ConstructL(const RArray<TItemId>* aRelationIds, 
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		const TMdEIntRange* aParameterRange)
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    {
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    // Base class construction.
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    ConditionConstruct();
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    if( aRelationIds )
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    	{
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    	iRelationIds = new (ELeave) RArray<TItemId>();
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    	const TInt relationIdCount = aRelationIds->Count();
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    	iRelationIds->ReserveL( relationIdCount );
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    	for( TInt i = 0; i < relationIdCount; i++ )
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    		{
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    		iRelationIds->AppendL( (*aRelationIds)[i] );
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    		}
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    	}
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    if( aParameterRange )
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        {
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        // Make a copy of the parameter range.
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        iParameterRange = new (ELeave) TMdEIntRange(*aParameterRange);
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        }
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    }
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CMdERelationCondition::~CMdERelationCondition()
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    {
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   	delete iLeftCondition;
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   	iLeftCondition = NULL;
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   	delete iRightCondition;
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   	iRightCondition = NULL;
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   	delete iParameterRange;
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   	iParameterRange = NULL;
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	delete iLastModifiedDateRange;
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	iLastModifiedDateRange = NULL;
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	if( iRelationIds )
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		{
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		iRelationIds->Close();
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		delete iRelationIds;
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		iRelationIds = NULL;
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		}
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    }
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EXPORT_C TItemId CMdERelationCondition::RelationId() const
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    {   
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    return iRelationId;
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    }
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EXPORT_C const RArray<TItemId>* CMdERelationCondition::RelationIds() const
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	{   
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	return iRelationIds;
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	}
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EXPORT_C const CMdERelationDef* CMdERelationCondition::RelationDef() const
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    {   
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    return iRelationDef;
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    }
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   118
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EXPORT_C CMdELogicCondition& CMdERelationCondition::LeftL()
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    {
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    if ( !iLeftCondition )
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    	{
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    	iLeftCondition = CMdELogicCondition::NewL(ELogicConditionOperatorAnd);
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    	}
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    return *iLeftCondition;
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    }
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EXPORT_C CMdELogicCondition& CMdERelationCondition::RightL()
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    {
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    if ( !iRightCondition )
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    	{
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    	iRightCondition = CMdELogicCondition::NewL(ELogicConditionOperatorAnd);
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    	}
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    return *iRightCondition;
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    }
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   138
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TRelationConditionSide CMdERelationCondition::Side() const
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	{
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	return iSide;
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	}
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   143
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EXPORT_C void CMdERelationCondition::SetSide(TRelationConditionSide aSide)
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    {
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    iSide = aSide;
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    }
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   148
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   149
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EXPORT_C const TMdEIntRange* CMdERelationCondition::ParameterRange() const
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    {
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    return iParameterRange;
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    }
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   154
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EXPORT_C void CMdERelationCondition::SetGuid(const TInt64& aGuidHigh, const TInt64& aGuidLow)
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	{
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	iGuidHigh = aGuidHigh;
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	iGuidLow = aGuidLow;
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	}
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   160
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EXPORT_C TBool CMdERelationCondition::Guid(TInt64& aGuidHigh, TInt64& aGuidLow) const
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	{
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	if( iGuidHigh == 0 && iGuidLow == 0 )
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		{
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		return EFalse;
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		}
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   167
	
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	aGuidHigh = iGuidHigh;
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	aGuidLow = iGuidLow;
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	return ETrue;
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	}
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   172
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EXPORT_C void CMdERelationCondition::SetLastModifiedDateRangeL(const TMdETimeRange& aLastModifiedDateRange)
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	{
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	if( !iLastModifiedDateRange )
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		{
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		iLastModifiedDateRange = new (ELeave) TMdETimeRange( aLastModifiedDateRange );
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		}
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	}
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EXPORT_C TBool CMdERelationCondition::LastModifiedDateRange(TMdETimeRange& aLastModifiedDateRange) const
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	{
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	if( iLastModifiedDateRange )
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		{		
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		aLastModifiedDateRange.SetType( iLastModifiedDateRange->Type() );
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		aLastModifiedDateRange.SetMin( iLastModifiedDateRange->Min() );
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		aLastModifiedDateRange.SetMax( iLastModifiedDateRange->Max() );
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		return ETrue;
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		}
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   190
	
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	return EFalse;
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   192
	}
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   193
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   194
TUint32 CMdERelationCondition::InternalQueryOptimizationFlags(TUint32& aFlags)
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	{
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	aFlags |= EContainsRelationCondition;
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	return EContainsRelationCondition;
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   198
	}
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   199
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TUint32 CMdERelationCondition::RequiredBufferSize() const
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   201
	{
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	TUint32 bufferSize = sizeof( TMdCRelationCondition );
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   203
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	if( iRelationIds )
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   205
		{
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		// count and IDs
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		bufferSize += CMdCSerializationBuffer::KRequiredSizeForTUint32 + 
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			iRelationIds->Count() * CMdCSerializationBuffer::KRequiredSizeForTItemId;
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		}	
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   210
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	if( iGuidHigh != 0 || iGuidLow != 0 )
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   212
		{
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		bufferSize += 2 * CMdCSerializationBuffer::KRequiredSizeForTInt64;
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		}
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   215
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	if ( iParameterRange )
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   217
		{
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		bufferSize += iParameterRange->RequiredBufferSize();
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		}
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   220
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	if ( iLeftCondition && iLeftCondition->Count() > 0 )
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		{
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		bufferSize += iLeftCondition->RequiredBufferSize();
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		}
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   225
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   226
	if ( iRightCondition && iRightCondition->Count() > 0  )
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		{
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		bufferSize += iRightCondition->RequiredBufferSize();
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		}
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   230
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	if( iLastModifiedDateRange )
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   232
		{
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		bufferSize += iLastModifiedDateRange->RequiredBufferSize();
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		}
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   235
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	return bufferSize;
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	}
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   238
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void CMdERelationCondition::SerializeL(CMdCSerializationBuffer& aBuffer,
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		TMdCOffset& aFreespaceOffset) const
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	{
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	TMdCRelationCondition condition;
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   243
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	condition.iConditionType = iType;
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   245
	condition.iNegated = iNegated;
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   246
	condition.iObjectSide = iSide;
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   247
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	if( iRelationDef )
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   249
		{
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		condition.iRelationDefId = iRelationDef->Id();
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		}
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	else
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   253
		{
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   254
		condition.iRelationDefId = KNoDefId;
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   255
		}
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   256
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   257
	condition.iRelationId = iRelationId;
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   258
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   259
	// updated later, if relation IDs exists
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   260
	condition.iRelationIds.iPtr.iCount = 0;
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   261
	condition.iRelationIds.iPtr.iOffset = KNoOffset;
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   262
	// updated later, if GUID exists
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   263
	condition.iGuid = KNoOffset;
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   264
	// updated later, if parameter range exists
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   265
	condition.iParameterRange = KNoOffset;
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   266
	// updated later, if left object condition exists
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   267
	condition.iLeftObjectCondition = KNoOffset;
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   268
	// updated later, if right object condition exists
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   269
	condition.iRightObjectCondition = KNoOffset;
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   270
	// updated later, if last modified date range exists
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   271
	condition.iLastModifiedDateRange = KNoOffset;
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   272
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	const TUint32 conditionOffset = aBuffer.Position();
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   274
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   275
	// get position after condition
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   276
	aFreespaceOffset = conditionOffset + sizeof( TMdCRelationCondition );
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   277
	aBuffer.PositionL( aFreespaceOffset );
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   278
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   279
	if( iRelationIds )
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   280
		{
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   281
		condition.iRelationIds.iPtr.iCount = iRelationIds->Count();
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   282
		condition.iRelationIds.iPtr.iOffset = aFreespaceOffset;
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   283
		
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		const TInt relationIdCount = iRelationIds->Count();
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   285
		for( TInt i = 0; i < relationIdCount; i++ )
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   286
			{
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   287
			const TItemId relationId = (*iRelationIds)[i];
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   288
			aBuffer.InsertL( relationId );
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   289
			}
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   290
		
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   291
		aFreespaceOffset = aBuffer.Position();
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   292
		}
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   293
	
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   294
	if( iGuidHigh != 0 || iGuidLow != 0 )
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   295
		{
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   296
		condition.iGuid = aFreespaceOffset;
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   297
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   298
		aBuffer.InsertL( iGuidHigh );
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   299
		aBuffer.InsertL( iGuidLow );
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   300
		
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   301
		aFreespaceOffset = aBuffer.Position();
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   302
		}
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   303
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   304
	if ( iParameterRange )
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diff changeset
   305
		{
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   306
		condition.iParameterRange = aFreespaceOffset;
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diff changeset
   307
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   308
		iParameterRange->SerializeL( aBuffer );
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diff changeset
   309
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   310
		aFreespaceOffset = aBuffer.Position();
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   311
		}
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   312
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   313
	if ( iLeftCondition && iLeftCondition->Count() > 0  )
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   314
		{
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   315
		condition.iLeftObjectCondition = aFreespaceOffset;
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parents:
diff changeset
   316
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   317
		iLeftCondition->SerializeL( aBuffer, aFreespaceOffset );
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parents:
diff changeset
   318
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   319
		aFreespaceOffset = aBuffer.Position();
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parents:
diff changeset
   320
		}
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parents:
diff changeset
   321
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parents:
diff changeset
   322
	if ( iRightCondition && iRightCondition->Count() > 0  )
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parents:
diff changeset
   323
		{
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parents:
diff changeset
   324
		condition.iRightObjectCondition = aFreespaceOffset;
c53acadfccc6 Revision: 201001
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parents:
diff changeset
   325
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parents:
diff changeset
   326
		iRightCondition->SerializeL( aBuffer, aFreespaceOffset );
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parents:
diff changeset
   327
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parents:
diff changeset
   328
		aFreespaceOffset = aBuffer.Position();
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parents:
diff changeset
   329
		}
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parents:
diff changeset
   330
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parents:
diff changeset
   331
	if ( iLastModifiedDateRange )
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parents:
diff changeset
   332
		{
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parents:
diff changeset
   333
		condition.iLastModifiedDateRange = aFreespaceOffset;
c53acadfccc6 Revision: 201001
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parents:
diff changeset
   334
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parents:
diff changeset
   335
		iLastModifiedDateRange->SerializeL( aBuffer );
c53acadfccc6 Revision: 201001
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parents:
diff changeset
   336
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parents:
diff changeset
   337
		aFreespaceOffset = aBuffer.Position();
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parents:
diff changeset
   338
		}
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parents:
diff changeset
   339
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parents:
diff changeset
   340
	aBuffer.PositionL( conditionOffset );
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parents:
diff changeset
   341
	
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parents:
diff changeset
   342
	condition.SerializeL( aBuffer );
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parents:
diff changeset
   343
	
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parents:
diff changeset
   344
	// move back to after sub condition
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parents:
diff changeset
   345
	aBuffer.PositionL( aFreespaceOffset );
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parents:
diff changeset
   346
	}