locationdataharvester/mylocationsengine/inc/lookupmaptiledb.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 14 May 2010 15:47:27 +0300
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Revision: 201017 Kit: 201019
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/*
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* Copyright (c) 2010 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: Maptile database lookup table header.
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*
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*/
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#ifndef __LOOKUPMAPTILEDB_H__
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#define __LOOKUPMAPTILEDB_H__
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//Headers needed
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#include <f32file.h> //RFs
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#include <d32dbms.h>  //RDbNamedDatabase,RDbView 
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#include "mylocationsdefines.h"
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/**
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 * CLookupMapTileDatabase class.
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 * This class handles all the operations related to maptile lookup database.
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 *
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 */
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class CLookupMapTileDatabase : public CBase
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{
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public:
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    // Two phase constructors
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    /**
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    * This is a static function, which creates and returns an instance of this class.
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    */
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    static CLookupMapTileDatabase* NewL( const TDesC& aLookupTableName );
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    /**
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    * This is a static function, which creates and returns an instance of this class. Pushes the created object 
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    * to the cleanup stack.
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    */
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    static CLookupMapTileDatabase* NewLC( const TDesC& aLookupTableName );
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    /**
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    * Destructor
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    */
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    ~CLookupMapTileDatabase();
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public:
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    /**
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    * Opens the lookup database.
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    */
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    TInt Open();
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    /**
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    * Closes the lookup database.
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    */
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    void Close();
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    /**
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    * Creates an entry in the lookup table.
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    * @param[in] aLookupItem The lookup item to be created in the database.
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    */
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    void CreateEntryL( const TLookupItem& aLookupItem );
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    /**
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    * Updates an entry in the lookup table.
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    * @param[in] aLookupItem The lookup item to be updated in the database.
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    */
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    void UpdateEntryL( const TLookupItem& aLookupItem );
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    /**
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    * Deletes an entry from the lookup table.
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    * @param[in] aLookupItem The lookup item to be deleted from the database.
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    */
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    void DeleteEntryL( const TLookupItem& aLookupItem );
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    /**
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    * Finds an entry in the lookup table.
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    * @param[in/out] aLookupItem The lookup item to be found in the database. The source iUid is passed
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    * in the lookup item
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    * @return ETrue if found, else EFalse
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    */
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    TBool FindEntryL( TLookupItem& aLookupItem);
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private:
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    // default constructor
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    CLookupMapTileDatabase();
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    // Second phase constructor
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    void ConstructL( const TDesC& aLookupTableName );
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    // Creates a lookup table in the lookup database.
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    void CreateTableL(RDbDatabase& aDatabase);
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private:
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    // Handle to the items database
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    RDbNamedDatabase iItemsDatabase;
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    // handle to the file session
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    RFs iFsSession;
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    // holds the database file name
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    TFileName iDbFileName;
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};
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#endif  // __LOOKUPMAPTILEDB_H__
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// End of file
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