// Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

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

// which accompanies this distribution, and is available

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

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

// Internal class for the repository access base class.

// @internalComponent

// 

//

#include "repository.h"

CRepositoryAccessor::CRepositoryAccessor()

	: iStatus(EStatusCreating)

	{

	}

void CRepositoryAccessor::SetRepository(CRepository& aRepository)

	{

	iRepository = &aRepository;

	}

void CRepositoryAccessor::CommitL()

	{

	TUint32 indexBase = IndexBase();

	switch (iStatus)

		{

	case EStatusCreating:

		TransactionL(ETransNew);

		break;

	case EStatusDirty:

		TransactionL(ETransSave);

		break;

	case EStatusDeleted:

		TransactionL(ETransRemove);

		break;

	case EStatusClean:

	default:

		// Do nothing

		break;

		}

	iStatus = EStatusClean;

	}

void CRepositoryAccessor::SetClean()

	{

	iStatus = EStatusClean;

	}

void CRepositoryAccessor::SetDirty()

	{

	if (iStatus == EStatusClean)

		{

		iStatus = EStatusDirty;

		}

	}

void CRepositoryAccessor::DeleteL()

	{

	iStatus = EStatusDeleted;

	}

Bookmark::TItemId CRepositoryAccessor::NextIndexL()

	{

	TInt nextIndex = 0;

	User::LeaveIfError(iRepository->Get(KRepNextIndex, nextIndex));

	if (nextIndex > Bookmark::KMaxBookmarkEntries)

		{

		User::Leave(Bookmark::KErrNoMoreSpace);

		}

	Bookmark::TItemId id = nextIndex;

	++nextIndex;

	User::LeaveIfError(iRepository->Set(KRepNextIndex, nextIndex));

	return id;

	}

void CRepositoryAccessor::TransactionL(TTransType aTransType)

	{

	// Loads are not performed in transactions. This is because property entries 

	// need to be filled as they go along. The alternative would be to fill some type of 

	// dynamic array and that pass this to a second method that will fill in the objects data members.

	if (aTransType == ETransLoad)

		{

		TransLoadL();

		return;

		}

	TUint32 failedIndex;

	// start a transaction

	TInt result = KErrLocked;

	do

		{

		iRepository->StartTransaction(CRepository::EConcurrentReadWriteTransaction);

		iRepository->CleanupCancelTransactionPushL();

		switch(aTransType)

			{

		case ETransNew:

			TransNewL();

			break;

		case ETransSave:

			TransSaveL();

			break;

		case ETransRemove:

			TransRemoveL();

			break;

		default:

			ASSERT(0);

			break;

			}

		// commit the transaction

		result = iRepository->CommitTransaction(failedIndex);

		CleanupStack::PopAndDestroy();

		} while (result == KErrLocked);

	User::LeaveIfError(result);

	}